Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy

doi:10.1002/adem.201701059

CORC > 金属研究所 > 中国科学院金属研究所

	Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy
	Xu, H; Li, XB; Xing, WW; Shu, L; Ma, YC; Liu, K
刊名	ADVANCED ENGINEERING MATERIALS
	2018-06-01
卷号	20 期号:6 页码:-
关键词	constitutive equation dislocation and twinning intermetallics microstructure processing map
ISSN号	1438-1656
DOI	10.1002/adem.201701059
英文摘要	The research is focused on the hot deformation behavior of Ti-42Al-5Mn (at%) ingot produced by vacuum induction melting (VIM) and vacuum arc remelting (VAR). Firstly, the isothermal compression test is performed at the temperatures between 1100 and 1300 degrees C with the strain rates in the range of 0.001-10s(-1). The processing map is plotted on the base of the strain-stress curves, and the constitutive equation is also established by regression analysis based on the experimental results. Secondly, different deformation features in , phase, and lath of lamellae are investigated by electron probe micro analyzer (EPMA) and transmission electron microscope (TEM). The results reveal that, the alloy can be hot worked from 1300 degrees C-10 s(-1) to 1100 degrees C-0.1 s(-1), and the stress exponent and apparent activation energy are calculated to be 2.71 and 597kJmole(-1), respectively. It shows that, during the isothermal compression process, the phase usually has a higher dislocation density than phase, and the lath of lamellae has generated both dislocation glide and deformation twinning.
学科主题	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000435928600022
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80167]
专题	金属研究所_中国科学院金属研究所
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xu, H,Li, XB,Xing, WW,et al. Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy[J]. ADVANCED ENGINEERING MATERIALS,2018,20(6):-.
APA	Xu, H,Li, XB,Xing, WW,Shu, L,Ma, YC,&Liu, K.(2018).Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy.ADVANCED ENGINEERING MATERIALS,20(6),-.
MLA	Xu, H,et al."Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy".ADVANCED ENGINEERING MATERIALS 20.6(2018):-.