Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations

The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interact...
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Gespeichert in:

Autor*in:	Biao Huang [verfasserIn] Er-geng Zhang [verfasserIn] Qiong Zhou [verfasserIn] Rong-chuan Lin [verfasserIn] Hao-ming Du [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy

Übergeordnetes Werk:	In: Coatings - MDPI AG, 2012, 11(2021), 63, p 63
Übergeordnetes Werk:	volume:11 ; year:2021 ; number:63, p 63

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/coatings11010063

Katalog-ID:	DOAJ052481859

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allfields	10.3390/coatings11010063 doi (DE-627)DOAJ052481859 (DE-599)DOAJe363a38a40504d8d9ab8b70d51e0b9b5 DE-627 ger DE-627 rakwb eng TA1-2040 Biao Huang verfasserin aut Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating. amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy Engineering (General). Civil engineering (General) Er-geng Zhang verfasserin aut Qiong Zhou verfasserin aut Rong-chuan Lin verfasserin aut Hao-ming Du verfasserin aut In Coatings MDPI AG, 2012 11(2021), 63, p 63 (DE-627)718627636 (DE-600)2662314-6 20796412 nnns volume:11 year:2021 number:63, p 63 https://doi.org/10.3390/coatings11010063 kostenfrei https://doaj.org/article/e363a38a40504d8d9ab8b70d51e0b9b5 kostenfrei https://www.mdpi.com/2079-6412/11/1/63 kostenfrei https://doaj.org/toc/2079-6412 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 11 2021 63, p 63
spelling	10.3390/coatings11010063 doi (DE-627)DOAJ052481859 (DE-599)DOAJe363a38a40504d8d9ab8b70d51e0b9b5 DE-627 ger DE-627 rakwb eng TA1-2040 Biao Huang verfasserin aut Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating. amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy Engineering (General). Civil engineering (General) Er-geng Zhang verfasserin aut Qiong Zhou verfasserin aut Rong-chuan Lin verfasserin aut Hao-ming Du verfasserin aut In Coatings MDPI AG, 2012 11(2021), 63, p 63 (DE-627)718627636 (DE-600)2662314-6 20796412 nnns volume:11 year:2021 number:63, p 63 https://doi.org/10.3390/coatings11010063 kostenfrei https://doaj.org/article/e363a38a40504d8d9ab8b70d51e0b9b5 kostenfrei https://www.mdpi.com/2079-6412/11/1/63 kostenfrei https://doaj.org/toc/2079-6412 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 11 2021 63, p 63
allfields_unstemmed	10.3390/coatings11010063 doi (DE-627)DOAJ052481859 (DE-599)DOAJe363a38a40504d8d9ab8b70d51e0b9b5 DE-627 ger DE-627 rakwb eng TA1-2040 Biao Huang verfasserin aut Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating. amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy Engineering (General). Civil engineering (General) Er-geng Zhang verfasserin aut Qiong Zhou verfasserin aut Rong-chuan Lin verfasserin aut Hao-ming Du verfasserin aut In Coatings MDPI AG, 2012 11(2021), 63, p 63 (DE-627)718627636 (DE-600)2662314-6 20796412 nnns volume:11 year:2021 number:63, p 63 https://doi.org/10.3390/coatings11010063 kostenfrei https://doaj.org/article/e363a38a40504d8d9ab8b70d51e0b9b5 kostenfrei https://www.mdpi.com/2079-6412/11/1/63 kostenfrei https://doaj.org/toc/2079-6412 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 11 2021 63, p 63
allfieldsGer	10.3390/coatings11010063 doi (DE-627)DOAJ052481859 (DE-599)DOAJe363a38a40504d8d9ab8b70d51e0b9b5 DE-627 ger DE-627 rakwb eng TA1-2040 Biao Huang verfasserin aut Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating. amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy Engineering (General). Civil engineering (General) Er-geng Zhang verfasserin aut Qiong Zhou verfasserin aut Rong-chuan Lin verfasserin aut Hao-ming Du verfasserin aut In Coatings MDPI AG, 2012 11(2021), 63, p 63 (DE-627)718627636 (DE-600)2662314-6 20796412 nnns volume:11 year:2021 number:63, p 63 https://doi.org/10.3390/coatings11010063 kostenfrei https://doaj.org/article/e363a38a40504d8d9ab8b70d51e0b9b5 kostenfrei https://www.mdpi.com/2079-6412/11/1/63 kostenfrei https://doaj.org/toc/2079-6412 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 11 2021 63, p 63
allfieldsSound	10.3390/coatings11010063 doi (DE-627)DOAJ052481859 (DE-599)DOAJe363a38a40504d8d9ab8b70d51e0b9b5 DE-627 ger DE-627 rakwb eng TA1-2040 Biao Huang verfasserin aut Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating. amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy Engineering (General). Civil engineering (General) Er-geng Zhang verfasserin aut Qiong Zhou verfasserin aut Rong-chuan Lin verfasserin aut Hao-ming Du verfasserin aut In Coatings MDPI AG, 2012 11(2021), 63, p 63 (DE-627)718627636 (DE-600)2662314-6 20796412 nnns volume:11 year:2021 number:63, p 63 https://doi.org/10.3390/coatings11010063 kostenfrei https://doaj.org/article/e363a38a40504d8d9ab8b70d51e0b9b5 kostenfrei https://www.mdpi.com/2079-6412/11/1/63 kostenfrei https://doaj.org/toc/2079-6412 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 11 2021 63, p 63
language	English
source	In Coatings 11(2021), 63, p 63 volume:11 year:2021 number:63, p 63
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callnumber-first	T - Technology
author	Biao Huang
spellingShingle	Biao Huang misc TA1-2040 misc amorphous carbon misc hydrogenated amorphous carbon misc coating misc first-principles molecular dynamics misc machinability misc aluminum alloy misc Engineering (General). Civil engineering (General) Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations
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topic_title	TA1-2040 Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations amorphous carbon hydrogenated amorphous carbon coating first-principles molecular dynamics machinability aluminum alloy
topic	misc TA1-2040 misc amorphous carbon misc hydrogenated amorphous carbon misc coating misc first-principles molecular dynamics misc machinability misc aluminum alloy misc Engineering (General). Civil engineering (General)
topic_unstemmed	misc TA1-2040 misc amorphous carbon misc hydrogenated amorphous carbon misc coating misc first-principles molecular dynamics misc machinability misc aluminum alloy misc Engineering (General). Civil engineering (General)
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title	Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations
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title_sort	research on the performance of diamond-like carbon coatings on cutting aluminum alloy: cutting experiments and first-principles calculations
callnumber	TA1-2040
title_auth	Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations
abstract	The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating.
abstractGer	The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating.
abstract_unstemmed	The purpose of this study is to investigate the cutting performance of amorphous carbon (a-C) coatings and hydrogenated amorphous carbon (a-C:H) coatings on machining 2A50 aluminum alloy. First-principles molecular dynamics simulation was applied to investigate the effect of hydrogen on the interaction between coatings and workpiece. The cross-section topography and internal structure of a-C and a-C:H films were characterized by field emission scanning electron microscopy and Raman spectroscopy. The surface roughness of the deposited films and processed workpiece were measured using a white light interferometer. The results show that the a-C-coated tool had the highest service life of 121 m and the best workpiece surface quality (<i<S</i<<sub<q</sub< parameter of 0.23 μm) while the workpiece surface roughness <i<S</i<<sub<q</sub< parameter was 0.35 and 0.52 μm when machined by the a-C:H-coated and the uncoated tool, respectively. Meanwhile, the build-up edge was observed on the a-C:H-coated tool and a layer of aluminum alloy was observed to have adhered to the surface of the uncoated tool at its stable stage. An interface model that examined the interactions between H-terminated diamond (111)/Al(111) surfaces revealed that H atoms would move laterally with the action of cutting heat (549 K) and increase the interaction between a-C:H and Al surfaces; therefore, Al was prone to adhere to the a-C:H-coated tool surface. The a-C coating shows better performance on cutting aluminum alloy than the a-C:H coating.
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container_issue	63, p 63
title_short	Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations
url	https://doi.org/10.3390/coatings11010063 https://doaj.org/article/e363a38a40504d8d9ab8b70d51e0b9b5 https://www.mdpi.com/2079-6412/11/1/63 https://doaj.org/toc/2079-6412
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Research on the Performance of Diamond-Like Carbon Coatings on Cutting Aluminum Alloy: Cutting Experiments and First-Principles Calculations

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