Stress relaxation behavior of low carbon steel at different temperatures

In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation proces...
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Autor*in:	Shanchao Zuo [verfasserIn] Danchen Wang [verfasserIn] Changqi Yang [verfasserIn] Peipei Hu [verfasserIn] Ran Bi [verfasserIn] Bing Du [verfasserIn] Decheng Wang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism

Übergeordnetes Werk:	In: Materials Research Express - IOP Publishing, 2020, 10(2023), 10, p 105801
Übergeordnetes Werk:	volume:10 ; year:2023 ; number:10, p 105801

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1088/2053-1591/ad019a

Katalog-ID:	DOAJ090987535

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520			\|a In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel.
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allfields	10.1088/2053-1591/ad019a doi (DE-627)DOAJ090987535 (DE-599)DOAJ588e9f7c630c4624b9345d11c28e6459 DE-627 ger DE-627 rakwb eng TA401-492 TP1-1185 Shanchao Zuo verfasserin aut Stress relaxation behavior of low carbon steel at different temperatures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel. stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism Materials of engineering and construction. Mechanics of materials Chemical technology Danchen Wang verfasserin aut Changqi Yang verfasserin aut Peipei Hu verfasserin aut Ran Bi verfasserin aut Bing Du verfasserin aut Decheng Wang verfasserin aut In Materials Research Express IOP Publishing, 2020 10(2023), 10, p 105801 (DE-627)78037889X (DE-600)2760382-9 20531591 nnns volume:10 year:2023 number:10, p 105801 https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/article/588e9f7c630c4624b9345d11c28e6459 kostenfrei https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/toc/2053-1591 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2336 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2023 10, p 105801
spelling	10.1088/2053-1591/ad019a doi (DE-627)DOAJ090987535 (DE-599)DOAJ588e9f7c630c4624b9345d11c28e6459 DE-627 ger DE-627 rakwb eng TA401-492 TP1-1185 Shanchao Zuo verfasserin aut Stress relaxation behavior of low carbon steel at different temperatures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel. stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism Materials of engineering and construction. Mechanics of materials Chemical technology Danchen Wang verfasserin aut Changqi Yang verfasserin aut Peipei Hu verfasserin aut Ran Bi verfasserin aut Bing Du verfasserin aut Decheng Wang verfasserin aut In Materials Research Express IOP Publishing, 2020 10(2023), 10, p 105801 (DE-627)78037889X (DE-600)2760382-9 20531591 nnns volume:10 year:2023 number:10, p 105801 https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/article/588e9f7c630c4624b9345d11c28e6459 kostenfrei https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/toc/2053-1591 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2336 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2023 10, p 105801
allfields_unstemmed	10.1088/2053-1591/ad019a doi (DE-627)DOAJ090987535 (DE-599)DOAJ588e9f7c630c4624b9345d11c28e6459 DE-627 ger DE-627 rakwb eng TA401-492 TP1-1185 Shanchao Zuo verfasserin aut Stress relaxation behavior of low carbon steel at different temperatures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel. stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism Materials of engineering and construction. Mechanics of materials Chemical technology Danchen Wang verfasserin aut Changqi Yang verfasserin aut Peipei Hu verfasserin aut Ran Bi verfasserin aut Bing Du verfasserin aut Decheng Wang verfasserin aut In Materials Research Express IOP Publishing, 2020 10(2023), 10, p 105801 (DE-627)78037889X (DE-600)2760382-9 20531591 nnns volume:10 year:2023 number:10, p 105801 https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/article/588e9f7c630c4624b9345d11c28e6459 kostenfrei https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/toc/2053-1591 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2336 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2023 10, p 105801
allfieldsGer	10.1088/2053-1591/ad019a doi (DE-627)DOAJ090987535 (DE-599)DOAJ588e9f7c630c4624b9345d11c28e6459 DE-627 ger DE-627 rakwb eng TA401-492 TP1-1185 Shanchao Zuo verfasserin aut Stress relaxation behavior of low carbon steel at different temperatures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel. stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism Materials of engineering and construction. Mechanics of materials Chemical technology Danchen Wang verfasserin aut Changqi Yang verfasserin aut Peipei Hu verfasserin aut Ran Bi verfasserin aut Bing Du verfasserin aut Decheng Wang verfasserin aut In Materials Research Express IOP Publishing, 2020 10(2023), 10, p 105801 (DE-627)78037889X (DE-600)2760382-9 20531591 nnns volume:10 year:2023 number:10, p 105801 https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/article/588e9f7c630c4624b9345d11c28e6459 kostenfrei https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/toc/2053-1591 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2336 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2023 10, p 105801
allfieldsSound	10.1088/2053-1591/ad019a doi (DE-627)DOAJ090987535 (DE-599)DOAJ588e9f7c630c4624b9345d11c28e6459 DE-627 ger DE-627 rakwb eng TA401-492 TP1-1185 Shanchao Zuo verfasserin aut Stress relaxation behavior of low carbon steel at different temperatures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel. stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism Materials of engineering and construction. Mechanics of materials Chemical technology Danchen Wang verfasserin aut Changqi Yang verfasserin aut Peipei Hu verfasserin aut Ran Bi verfasserin aut Bing Du verfasserin aut Decheng Wang verfasserin aut In Materials Research Express IOP Publishing, 2020 10(2023), 10, p 105801 (DE-627)78037889X (DE-600)2760382-9 20531591 nnns volume:10 year:2023 number:10, p 105801 https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/article/588e9f7c630c4624b9345d11c28e6459 kostenfrei https://doi.org/10.1088/2053-1591/ad019a kostenfrei https://doaj.org/toc/2053-1591 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2336 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2023 10, p 105801
language	English
source	In Materials Research Express 10(2023), 10, p 105801 volume:10 year:2023 number:10, p 105801
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format_phy_str_mv	Article
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topic_facet	stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism Materials of engineering and construction. Mechanics of materials Chemical technology
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container_title	Materials Research Express
authorswithroles_txt_mv	Shanchao Zuo @@aut@@ Danchen Wang @@aut@@ Changqi Yang @@aut@@ Peipei Hu @@aut@@ Ran Bi @@aut@@ Bing Du @@aut@@ Decheng Wang @@aut@@
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Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. 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callnumber-first	T - Technology
author	Shanchao Zuo
spellingShingle	Shanchao Zuo misc TA401-492 misc TP1-1185 misc stress relaxation misc activation volume misc dislocation density misc dislocation annihilation misc deformation mechanism misc Materials of engineering and construction. Mechanics of materials misc Chemical technology Stress relaxation behavior of low carbon steel at different temperatures
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topic_title	TA401-492 TP1-1185 Stress relaxation behavior of low carbon steel at different temperatures stress relaxation activation volume dislocation density dislocation annihilation deformation mechanism
topic	misc TA401-492 misc TP1-1185 misc stress relaxation misc activation volume misc dislocation density misc dislocation annihilation misc deformation mechanism misc Materials of engineering and construction. Mechanics of materials misc Chemical technology
topic_unstemmed	misc TA401-492 misc TP1-1185 misc stress relaxation misc activation volume misc dislocation density misc dislocation annihilation misc deformation mechanism misc Materials of engineering and construction. Mechanics of materials misc Chemical technology
topic_browse	misc TA401-492 misc TP1-1185 misc stress relaxation misc activation volume misc dislocation density misc dislocation annihilation misc deformation mechanism misc Materials of engineering and construction. Mechanics of materials misc Chemical technology
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title	Stress relaxation behavior of low carbon steel at different temperatures
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title_full	Stress relaxation behavior of low carbon steel at different temperatures
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title_sort	stress relaxation behavior of low carbon steel at different temperatures
callnumber	TA401-492
title_auth	Stress relaxation behavior of low carbon steel at different temperatures
abstract	In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel.
abstractGer	In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel.
abstract_unstemmed	In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and the physical mechanism and deformation process in the stress relaxation process were revealed. The results shows that with the increase of temperature or initial stress, the nominal activation volume decreases, but the strain rate and the strain rate sensitivity coefficient increase. The repeated stress relaxation test shows that the stress release amount decreases with the increase of the number of cycles, and the higher the temperature, the smaller the effect of the number of cycles. Under the action of temperature and stress, the dislocation starts to move from the disordered bending shape in the original sample to the flat shape gradually. Moreover, the dislocation density decreases to less than 47.8% of the initial sample as the temperature increases and the initial stress decreases. It can be concluded that the dislocation motion is the core mechanism of stress relaxation of Q235 steel.
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title_short	Stress relaxation behavior of low carbon steel at different temperatures
url	https://doi.org/10.1088/2053-1591/ad019a https://doaj.org/article/588e9f7c630c4624b9345d11c28e6459 https://doaj.org/toc/2053-1591
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Stress relaxation behavior of low carbon steel at different temperatures

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