Effect of ball milling on densification and alloying in SiCp/Al powder metallurgy processes

doi:10.1016/j.matchar.2024.114583

IMR OpenIR

	Effect of ball milling on densification and alloying in SiCp/Al powder metallurgy processes
	Feng, X. M.1,2; Zhang, J. F.1; Wang, D.1; Deng, B.3; Wang, J.3; Xiao, B. L.1; Ma, Z. Y.1
通讯作者	Zhang, J. F.(jfzhang@imr.ac.cn) ; Xiao, B. L.(blxiao@imr.ac.cn)
	2024-12-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	218 页码:13
摘要	In this study, unprocessed raw Al, Cu, Mg powders, and SiC particles were mixed and subjected to high-energy ball milling (HEBM) to mitigate the negative effects of the oxide film on the quality of the pressureless sintering billets. Comparative experiments including pores and intermetallics examination were performed on both the mixed and HEBM powders across various preparation stages, including cold isostatic pressing, sintering, and hot extrusion of the 15vol.%SiC/Al-Cu-Mg. The pore structure and degree of alloying were analyzed using X-ray synchrotron radiation tomography. The results indicate that the brief HEBM process led to excellent mechanical properties in aluminum matrix composites after pressureless sintering and hot extrusion. The composites using ball-milled powder was relatively denser and complete alloying after sintering and extrusion, resulting in a density of up to 0.995 and a uniform distribution of Cu elements. The HEBM SiCp/Al had a tensile strength of 573 MPa and a fracture strain of 5.1 % which were higher than that of the mixed SiCp/Al. The results indicate that diffusion of alloy elements such as Cu was hindered by the interfaces between powders, led to Cu segregation and lower density of only 0.982 even after extrusion. Therefore, the composites using mixed powder had a lower tensile strength of 483 MPa and a fracture strain of 3.5 %. The study concluded that reducing the number and types of inter-particle interfaces could enhance the alloying and pore bridging processes.
关键词	Synchrotron X-ray tomography Three-dimensional structure Pore bridging Metallurgical bonding
资助者	National Key R & D Pro-gram of China ; National Natural Science Foundation of China
DOI	10.1016/j.matchar.2024.114583
收录类别	SCI
语种	英语
资助项目	National Key R & D Pro-gram of China[2021YFA1600700] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[52192594] ; National Natural Science Foundation of China[52201052]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001370901100001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/181249
专题	中国科学院金属研究所
通讯作者	Zhang, J. F.; Xiao, B. L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Feng, X. M.,Zhang, J. F.,Wang, D.,et al. Effect of ball milling on densification and alloying in SiCp/Al powder metallurgy processes[J]. MATERIALS CHARACTERIZATION,2024,218:13.
APA	Feng, X. M..,Zhang, J. F..,Wang, D..,Deng, B..,Wang, J..,...&Ma, Z. Y..(2024).Effect of ball milling on densification and alloying in SiCp/Al powder metallurgy processes.MATERIALS CHARACTERIZATION,218,13.
MLA	Feng, X. M.,et al."Effect of ball milling on densification and alloying in SiCp/Al powder metallurgy processes".MATERIALS CHARACTERIZATION 218(2024):13.