Constitutive equation and model validation for a 31 vol.% B4Cp/6061Al composite during hot compression

doi:10.1016/j.jmst.2018.02.001

CORC > 金属研究所 > 中国科学院金属研究所

	Constitutive equation and model validation for a 31 vol.% B4Cp/6061Al composite during hot compression
	Zhou, L ; Cui, C ; Wang, QZ ; Li, C ; Xiao, BL ; Ma, ZY
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2018-10-01
卷号	34 期号:10 页码:1730-1738
关键词	Composites B4C/Al Constitutive equation Hot compression Finite element simulation
ISSN号	1005-0302
DOI	10.1016/j.jmst.2018.02.001
英文摘要	An accurate constitutive equation is essential to understanding the flow behavior of B4C/Al composites during the hot deformation. However, the constitutive equations developed previously in literature are generally for low strain rate deformation. In the present work, we modified the general constitutive equation and take the high strain rate correction into account. The constitutive equation for a 31 vol.% B4Cp/6061Al composite was constructed based on the flow stresses measured during isothermal hot compression at temperatures ranging from 375 to 525 degrees C and strain rates from 0.01 to 10 s(-1). The experimental flow stresses were corrected by considering temperature-dependent Arrhenius factor. The modified equation was then verified by using DEFORM-3D finite element analysis to simulate the experimental hot compression process. The results show that the modified equation successfully predicts flow stress, load-displacement, and the temperature rise. This helps to optimize the hot deformation process, and to obtain desirable properties, such as reduced porosity and homogenous particle distribution in B4C/Al composites. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000438131700003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79942]
专题	金属研究所_中国科学院金属研究所
作者单位	1.[Zhou, L. 2.Wang, Q. Z. 3.Xiao, B. L. 4.Ma, Z. Y.] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.[Zhou, L.] Yantai Univ, Sch Electromech & Vehicle Engn, Yantai 264005, Peoples R China 6.[Cui, C.] Shenyang Ligong Univ, Sch Mech Engn, Shenyang 110159, Liaoning, Peoples R China 7.[Li, C.] Minist Environm Protect, Nucl & Radiat Safety Ctr, Beijing 100082, Peoples R China
推荐引用方式 GB/T 7714	Zhou, L,Cui, C,Wang, QZ,et al. Constitutive equation and model validation for a 31 vol.% B4Cp/6061Al composite during hot compression[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(10):1730-1738.
APA	Zhou, L,Cui, C,Wang, QZ,Li, C,Xiao, BL,&Ma, ZY.(2018).Constitutive equation and model validation for a 31 vol.% B4Cp/6061Al composite during hot compression.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(10),1730-1738.
MLA	Zhou, L,et al."Constitutive equation and model validation for a 31 vol.% B4Cp/6061Al composite during hot compression".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.10(2018):1730-1738.