Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature

In order to investigate the effect of heat treatment on the mechanical properties of the Al-7.0Si-0.3Mg alloy at 20–60 °C under different heat treatment processes, the tensile mechanical properties of Al-7.0Si-0.3Mg at low temperature after heat treatment were explored. The microstructure of Al-7.0S...
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Autor*in:	Guanghui Ma [verfasserIn] Mengmeng Yang [verfasserIn] Zhe Geng [verfasserIn] Yunpeng Ding [verfasserIn] Hai Liu [verfasserIn] Yujing Jin [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Al-7.0Si-0.3Mg low temperature mechanical properties fracture behavior

Übergeordnetes Werk:	In: Crystals - MDPI AG, 2011, 12(2022), 4, p 563
Übergeordnetes Werk:	volume:12 ; year:2022 ; number:4, p 563

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/cryst12040563

Katalog-ID:	DOAJ030155762

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520			\|a In order to investigate the effect of heat treatment on the mechanical properties of the Al-7.0Si-0.3Mg alloy at 20–60 °C under different heat treatment processes, the tensile mechanical properties of Al-7.0Si-0.3Mg at low temperature after heat treatment were explored. The microstructure of Al-7.0Si-0.3Mg was observed by scanning electron microscopy (SEM) and transmission electron microscopy. The results show that the resistance of the dislocation movement in α-Al increased in the low-temperature condition, which is beneficial for the number of Si phase fractures that increase to enhance the tensile strength and weaken the elongation of the Al-7.0Si-0.3Mg alloy. After the solution treatment, the particle size of the Si phase reduced, while the morphology became rounded. In the early stage of aging, a GP region is generated inside the α-Al. With the prolonging of aging time, the acicular β″ phase is formed and then grows into rod-shaped β′. In the overaging stage, β′ eventually grows into flaky β. Due to the different linear expansion coefficients of the α-Al and the Mg<sub<2</sub<Si phase in the Al-7.0Si-0.3Mg alloy, the α-Al is squeezed by the Mg<sub<2</sub<Si phase under the effect of low-temperature shrinkage.
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spelling	10.3390/cryst12040563 doi (DE-627)DOAJ030155762 (DE-599)DOAJ7c9f50c4e81d4f47b0764b29f22c1676 DE-627 ger DE-627 rakwb eng QD901-999 Guanghui Ma verfasserin aut Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to investigate the effect of heat treatment on the mechanical properties of the Al-7.0Si-0.3Mg alloy at 20–60 °C under different heat treatment processes, the tensile mechanical properties of Al-7.0Si-0.3Mg at low temperature after heat treatment were explored. The microstructure of Al-7.0Si-0.3Mg was observed by scanning electron microscopy (SEM) and transmission electron microscopy. The results show that the resistance of the dislocation movement in α-Al increased in the low-temperature condition, which is beneficial for the number of Si phase fractures that increase to enhance the tensile strength and weaken the elongation of the Al-7.0Si-0.3Mg alloy. After the solution treatment, the particle size of the Si phase reduced, while the morphology became rounded. In the early stage of aging, a GP region is generated inside the α-Al. With the prolonging of aging time, the acicular β″ phase is formed and then grows into rod-shaped β′. In the overaging stage, β′ eventually grows into flaky β. Due to the different linear expansion coefficients of the α-Al and the Mg<sub<2</sub<Si phase in the Al-7.0Si-0.3Mg alloy, the α-Al is squeezed by the Mg<sub<2</sub<Si phase under the effect of low-temperature shrinkage. Al-7.0Si-0.3Mg low temperature mechanical properties fracture behavior Crystallography Mengmeng Yang verfasserin aut Zhe Geng verfasserin aut Yunpeng Ding verfasserin aut Hai Liu verfasserin aut Yujing Jin verfasserin aut In Crystals MDPI AG, 2011 12(2022), 4, p 563 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:12 year:2022 number:4, p 563 https://doi.org/10.3390/cryst12040563 kostenfrei https://doaj.org/article/7c9f50c4e81d4f47b0764b29f22c1676 kostenfrei https://www.mdpi.com/2073-4352/12/4/563 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_602 GBV_ILN_2014 GBV_ILN_2055 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 12 2022 4, p 563
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authorswithroles_txt_mv	Guanghui Ma @@aut@@ Mengmeng Yang @@aut@@ Zhe Geng @@aut@@ Yunpeng Ding @@aut@@ Hai Liu @@aut@@ Yujing Jin @@aut@@
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callnumber-first	Q - Science
author	Guanghui Ma
spellingShingle	Guanghui Ma misc QD901-999 misc Al-7.0Si-0.3Mg misc low temperature misc mechanical properties misc fracture behavior misc Crystallography Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature
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topic_title	QD901-999 Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature Al-7.0Si-0.3Mg low temperature mechanical properties fracture behavior
topic	misc QD901-999 misc Al-7.0Si-0.3Mg misc low temperature misc mechanical properties misc fracture behavior misc Crystallography
topic_unstemmed	misc QD901-999 misc Al-7.0Si-0.3Mg misc low temperature misc mechanical properties misc fracture behavior misc Crystallography
topic_browse	misc QD901-999 misc Al-7.0Si-0.3Mg misc low temperature misc mechanical properties misc fracture behavior misc Crystallography
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title	Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature
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title_full	Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature
author_sort	Guanghui Ma
journal	Crystals
journalStr	Crystals
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author_browse	Guanghui Ma Mengmeng Yang Zhe Geng Yunpeng Ding Hai Liu Yujing Jin
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author-letter	Guanghui Ma
doi_str_mv	10.3390/cryst12040563
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title_sort	effect of heat treatment on mechanical properties and fracture behavior of al-7.0si-0.3mg alloy at low temperature
callnumber	QD901-999
title_auth	Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature
abstract	In order to investigate the effect of heat treatment on the mechanical properties of the Al-7.0Si-0.3Mg alloy at 20–60 °C under different heat treatment processes, the tensile mechanical properties of Al-7.0Si-0.3Mg at low temperature after heat treatment were explored. The microstructure of Al-7.0Si-0.3Mg was observed by scanning electron microscopy (SEM) and transmission electron microscopy. The results show that the resistance of the dislocation movement in α-Al increased in the low-temperature condition, which is beneficial for the number of Si phase fractures that increase to enhance the tensile strength and weaken the elongation of the Al-7.0Si-0.3Mg alloy. After the solution treatment, the particle size of the Si phase reduced, while the morphology became rounded. In the early stage of aging, a GP region is generated inside the α-Al. With the prolonging of aging time, the acicular β″ phase is formed and then grows into rod-shaped β′. In the overaging stage, β′ eventually grows into flaky β. Due to the different linear expansion coefficients of the α-Al and the Mg<sub<2</sub<Si phase in the Al-7.0Si-0.3Mg alloy, the α-Al is squeezed by the Mg<sub<2</sub<Si phase under the effect of low-temperature shrinkage.
abstractGer	In order to investigate the effect of heat treatment on the mechanical properties of the Al-7.0Si-0.3Mg alloy at 20–60 °C under different heat treatment processes, the tensile mechanical properties of Al-7.0Si-0.3Mg at low temperature after heat treatment were explored. The microstructure of Al-7.0Si-0.3Mg was observed by scanning electron microscopy (SEM) and transmission electron microscopy. The results show that the resistance of the dislocation movement in α-Al increased in the low-temperature condition, which is beneficial for the number of Si phase fractures that increase to enhance the tensile strength and weaken the elongation of the Al-7.0Si-0.3Mg alloy. After the solution treatment, the particle size of the Si phase reduced, while the morphology became rounded. In the early stage of aging, a GP region is generated inside the α-Al. With the prolonging of aging time, the acicular β″ phase is formed and then grows into rod-shaped β′. In the overaging stage, β′ eventually grows into flaky β. Due to the different linear expansion coefficients of the α-Al and the Mg<sub<2</sub<Si phase in the Al-7.0Si-0.3Mg alloy, the α-Al is squeezed by the Mg<sub<2</sub<Si phase under the effect of low-temperature shrinkage.
abstract_unstemmed	In order to investigate the effect of heat treatment on the mechanical properties of the Al-7.0Si-0.3Mg alloy at 20–60 °C under different heat treatment processes, the tensile mechanical properties of Al-7.0Si-0.3Mg at low temperature after heat treatment were explored. The microstructure of Al-7.0Si-0.3Mg was observed by scanning electron microscopy (SEM) and transmission electron microscopy. The results show that the resistance of the dislocation movement in α-Al increased in the low-temperature condition, which is beneficial for the number of Si phase fractures that increase to enhance the tensile strength and weaken the elongation of the Al-7.0Si-0.3Mg alloy. After the solution treatment, the particle size of the Si phase reduced, while the morphology became rounded. In the early stage of aging, a GP region is generated inside the α-Al. With the prolonging of aging time, the acicular β″ phase is formed and then grows into rod-shaped β′. In the overaging stage, β′ eventually grows into flaky β. Due to the different linear expansion coefficients of the α-Al and the Mg<sub<2</sub<Si phase in the Al-7.0Si-0.3Mg alloy, the α-Al is squeezed by the Mg<sub<2</sub<Si phase under the effect of low-temperature shrinkage.
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container_issue	4, p 563
title_short	Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature
url	https://doi.org/10.3390/cryst12040563 https://doaj.org/article/7c9f50c4e81d4f47b0764b29f22c1676 https://www.mdpi.com/2073-4352/12/4/563 https://doaj.org/toc/2073-4352
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author2	Mengmeng Yang Zhe Geng Yunpeng Ding Hai Liu Yujing Jin
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doi_str	10.3390/cryst12040563
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up_date	2024-07-03T13:17:05.787Z
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Effect of Heat Treatment on Mechanical Properties and Fracture Behavior of Al-7.0Si-0.3Mg Alloy at Low Temperature

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