Hot deformation mechanisms and microstructure evolution of SiCp/2014Al composite

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	Hot deformation mechanisms and microstructure evolution of SiCp/2014Al composite
	Huang, Zhiye ; Zhang, Xingxing ; Xiao, Bolyu ; Ma, Zongyi
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2017-10-25
卷号	722 页码:145-157
关键词	Metal matrix composites Hot deformation Processing map Dynamic recovery Dynamic recrystallization
ISSN号	0925-8388
通讯作者	Xiao, BL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
中文摘要	Hot deformation behavior of a stir cast and hot extruded 14 vol% SiCp/2014Al composite was studied at temperatures from 355 to 495 degrees C and strain rates from 0.001 to 1 s(-1), including microstructure evolution and damage formation. Stress-strain rate fitting was optimized to construct accurate processing maps based on modified dynamic materials model (MDMM). In addition, the strain rate sensitivity maps were plotted, indicating more significant effect of temperature on deformation mechanism than strain rate. The dissipation efficiency versus temperature curves indicated: (i) a transition from dynamic recovery (DRV) to dynamic recrystallization (DRX) at 400 degrees C; (ii) occurrence of dynamic grain growth (DGG) at 400-440 degrees C; (iii) existence of equicohesive point (T-eq) of 450 degrees C (similar to 0.8 T-m) above which grain boundaries weakened and contributed to plastic deformation. The particular fluctuation of temperature sensitivity at 440 degrees C was caused by an abnormal grain growth. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	National Natural Science Foundation of China [U1508216]; National Basic Program of China [2012CB619600]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78005]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Huang, Zhiye,Zhang, Xingxing,Xiao, Bolyu,et al. Hot deformation mechanisms and microstructure evolution of SiCp/2014Al composite[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,722:145-157.
APA	Huang, Zhiye,Zhang, Xingxing,Xiao, Bolyu,&Ma, Zongyi.(2017).Hot deformation mechanisms and microstructure evolution of SiCp/2014Al composite.JOURNAL OF ALLOYS AND COMPOUNDS,722,145-157.
MLA	Huang, Zhiye,et al."Hot deformation mechanisms and microstructure evolution of SiCp/2014Al composite".JOURNAL OF ALLOYS AND COMPOUNDS 722(2017):145-157.