Effects of ball milling on powder particle boundaries and properties of ODS copper

Al2O3 dispersion-strengthened (ODS) copper has an excellent comprehensive performance due to the strong hindrance of the high concentration nano-Al2O3 to the dislocations inside copper grains. However, the processability of ODS copper is seriously deteriorated, which is caused by the presence of unf...

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Autores principales:	Li Pei, Chen Cunguang, Zhang Chenzeng, Xiao Na, Zhang Haifeng, Li Yang, Guo Zhimeng
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	ods copper ball milling al2o3 particles mechanical property electrical conductivity Technology T Chemical technology TP1-1185 Chemicals: Manufacture, use, etc. TP200-248
Acceso en línea:	https://doaj.org/article/902d65b5b7de419da98b1c632a375e67
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spelling	oai:doaj.org-article:902d65b5b7de419da98b1c632a375e672021-12-05T14:10:50ZEffects of ball milling on powder particle boundaries and properties of ODS copper2191-032410.1515/htmp-2021-0036https://doaj.org/article/902d65b5b7de419da98b1c632a375e672021-11-01T00:00:00Zhttps://doi.org/10.1515/htmp-2021-0036https://doaj.org/toc/2191-0324Al2O3 dispersion-strengthened (ODS) copper has an excellent comprehensive performance due to the strong hindrance of the high concentration nano-Al2O3 to the dislocations inside copper grains. However, the processability of ODS copper is seriously deteriorated, which is caused by the presence of unfavorable microlevel Al2O3 particles along powder particle boundaries. In this study, a strategy of ball-milling-induced impurity removal is adopted to surmount the dilemma. It was found that the ball milling process can significantly weaken the formation of large Al2O3 particles in the primary boundaries. However, due to the activation of the powder particle surface, the metallurgical bonding between the powder particles is strengthened. The results showed that the ball-milled samples exhibited the optimal properties, including the ultimate tensile strength of 488 ± 3 MPa, elongation of 18.7 ± 0.7%, reduction in the area of 46.8 ± 1.2%, 82.2 ± 0.3 Rockwell Hardness measured on the B scale (HRB), and electrical conductivity of 77.2 ± 0.1% International Association of Classification Societies (IACS).Li PeiChen CunguangZhang ChenzengXiao NaZhang HaifengLi YangGuo ZhimengDe Gruyterarticleods copperball millingal2o3 particlesmechanical propertyelectrical conductivityTechnologyTChemical technologyTP1-1185Chemicals: Manufacture, use, etc.TP200-248ENHigh Temperature Materials and Processes, Vol 40, Iss 1, Pp 361-369 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ods copper ball milling al2o3 particles mechanical property electrical conductivity Technology T Chemical technology TP1-1185 Chemicals: Manufacture, use, etc. TP200-248
spellingShingle	ods copper ball milling al2o3 particles mechanical property electrical conductivity Technology T Chemical technology TP1-1185 Chemicals: Manufacture, use, etc. TP200-248 Li Pei Chen Cunguang Zhang Chenzeng Xiao Na Zhang Haifeng Li Yang Guo Zhimeng Effects of ball milling on powder particle boundaries and properties of ODS copper
description	Al2O3 dispersion-strengthened (ODS) copper has an excellent comprehensive performance due to the strong hindrance of the high concentration nano-Al2O3 to the dislocations inside copper grains. However, the processability of ODS copper is seriously deteriorated, which is caused by the presence of unfavorable microlevel Al2O3 particles along powder particle boundaries. In this study, a strategy of ball-milling-induced impurity removal is adopted to surmount the dilemma. It was found that the ball milling process can significantly weaken the formation of large Al2O3 particles in the primary boundaries. However, due to the activation of the powder particle surface, the metallurgical bonding between the powder particles is strengthened. The results showed that the ball-milled samples exhibited the optimal properties, including the ultimate tensile strength of 488 ± 3 MPa, elongation of 18.7 ± 0.7%, reduction in the area of 46.8 ± 1.2%, 82.2 ± 0.3 Rockwell Hardness measured on the B scale (HRB), and electrical conductivity of 77.2 ± 0.1% International Association of Classification Societies (IACS).
format	article
author	Li Pei Chen Cunguang Zhang Chenzeng Xiao Na Zhang Haifeng Li Yang Guo Zhimeng
author_facet	Li Pei Chen Cunguang Zhang Chenzeng Xiao Na Zhang Haifeng Li Yang Guo Zhimeng
author_sort	Li Pei
title	Effects of ball milling on powder particle boundaries and properties of ODS copper
title_short	Effects of ball milling on powder particle boundaries and properties of ODS copper
title_full	Effects of ball milling on powder particle boundaries and properties of ODS copper
title_fullStr	Effects of ball milling on powder particle boundaries and properties of ODS copper
title_full_unstemmed	Effects of ball milling on powder particle boundaries and properties of ODS copper
title_sort	effects of ball milling on powder particle boundaries and properties of ods copper
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/902d65b5b7de419da98b1c632a375e67
work_keys_str_mv	AT lipei effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper AT chencunguang effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper AT zhangchenzeng effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper AT xiaona effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper AT zhanghaifeng effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper AT liyang effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper AT guozhimeng effectsofballmillingonpowderparticleboundariesandpropertiesofodscopper
_version_	1718371677244489728

Effects of ball milling on powder particle boundaries and properties of ODS copper

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