Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites

doi:10.11900/0412.1961.2019.00454

IMR OpenIR

	Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites
	Zhou Li 1; Li Ming 1; Wang Quanzhao 2; Cui Chao 3; Xiao Bolv 2; Ma Zongyi 2
通讯作者	Wang Quanzhao(qzhwang@imr.ac.cn)
	2020-08-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	56 期号:8 页码:1155-1164
摘要	B4Cp/Al composite has the advantages of light weight, good stability, high neutron absorption capacity and excellent mechanical properties, and is increasingly used in nuclear industry for storage and transportation of spent fuels. However, due to the obvious difference in the mechanical properties between the reinforcement and the aluminum matrix, the deformation of B4Cp/Al composite is quite difficult. In this study, the hot compression behavior of 31%B4Cp/6061Al (volume fraction) composite fabricated by powder metallurgy was investigated in the temperature range of 375 similar to 525 degrees C and strain rate range of 0.001 similar to 10 s(-1) with Gleeble-3800 thermal simulator system. Based on the modified dynamic material model (MDMM), the power dissipation efficiency and processing maps were established, the instability zones and stable area of hot deformation were determined, and the microstructure evolution during hot compression were analyzed. The results show that the temperature and strain rate have significant influences on the flow stress of 31%B4Cp/6061Al composite, and the flow stress increases with decreasing temperature or with increasing strain rate. The optimum processing domains for 31%B4Cp/6061Al composite are at temperatures of 480 similar to 525 degrees C with strain rates of 0.01 similar to 0.04 s(-1). However, the processing instability area is mainly concentrated in low temperature and high strain rate, and increases with the increase of strain. During the hot compressing, the microstructure evolution is influenced by hot processing parameters, such as the strain, temperature and strain rate. The higher the strain is, the more serious the grain deformation is. With increasing deformation temperature or decreasing strain rate, the size of the dynamic recrystallization grain in matrix increases obviously.
关键词	B4Cp/6061Al composites hot deformation processing map microstructure
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province
DOI	10.11900/0412.1961.2019.00454
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U1508216] ; National Natural Science Foundation of China[51771194] ; Natural Science Foundation of Shandong Province
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000550617100011
出版者	SCIENCE PRESS
引用统计	被引频次：5[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/321006/139814
专题	中国科学院金属研究所
通讯作者	Wang Quanzhao
作者单位	1.Yantai Univ, Sch Electromech & Vehicle Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Harbin Inst Technol Weihai, Sch Mat Sci & Engn, Weihai 264209, Peoples R China
推荐引用方式 GB/T 7714	Zhou Li,Li Ming,Wang Quanzhao,et al. Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites[J]. ACTA METALLURGICA SINICA,2020,56(8):1155-1164.
APA	Zhou Li,Li Ming,Wang Quanzhao,Cui Chao,Xiao Bolv,&Ma Zongyi.(2020).Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites.ACTA METALLURGICA SINICA,56(8),1155-1164.
MLA	Zhou Li,et al."Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites".ACTA METALLURGICA SINICA 56.8(2020):1155-1164.