Constitutive flow behavior and hot workability of powder metallurgy processed 20 vol.%SiCP/2024Al composite

doi:10.1016/j.msea.2010.08.080

CORC > 金属研究所 > 中国科学院金属研究所

	Constitutive flow behavior and hot workability of powder metallurgy processed 20 vol.%SiCP/2024Al composite
	Shao, J. C.; Xiao, B. L.; Wang, Q. Z.; Ma, Z. Y.; Liu, Y.; Yang, K.
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2010-11-15
卷号	527 期号:29-30 页码:7865-7872
关键词	Metal matrix composites Constitutive equations Processing maps Aluminum alloys Powder metallurgy
ISSN号	0921-5093
DOI	10.1016/j.msea.2010.08.080
通讯作者	Ma, Z. Y.(zyma@imr.ac.cn)
英文摘要	Constitutive flow behavior and hot workability of the powder metallurgy processed 20 vol.%SiCP/2024Al composite were investigated using hot compression tests. The modified Arrhenius-type constitutive equations were presented with the values of material constants in consideration as a function of strain. Dynamic material model (DMM) and modified DMM were used to construct the power dissipation efficiency maps, and Ziegler's instability criterion and Gegel's stability criterion were used to build instability maps. The presence of finer SiCP and more boundaries resulting from smaller 2024Al powders shifted the dynamic recrystallization domain of the 2024Al matrix to higher strain rate and lower temperature ranges and decreased the peak value of power dissipation efficiency. Large instable regions were found in the form of flow localization and cavitations located at the matrix/SiCP interfaces and within the SiCP clusters. By comparison, the Gegel's stability criterion was more sensitive to the instability zones than the Ziegler's instability criterion for this material. (c) 2010 Elsevier B.V. All rights reserved.
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000283892600054
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/102492]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ma, Z. Y.
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shao, J. C.,Xiao, B. L.,Wang, Q. Z.,et al. Constitutive flow behavior and hot workability of powder metallurgy processed 20 vol.%SiCP/2024Al composite[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2010,527(29-30):7865-7872.
APA	Shao, J. C.,Xiao, B. L.,Wang, Q. Z.,Ma, Z. Y.,Liu, Y.,&Yang, K..(2010).Constitutive flow behavior and hot workability of powder metallurgy processed 20 vol.%SiCP/2024Al composite.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,527(29-30),7865-7872.
MLA	Shao, J. C.,et al."Constitutive flow behavior and hot workability of powder metallurgy processed 20 vol.%SiCP/2024Al composite".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 527.29-30(2010):7865-7872.