Strain distribution during tensile deformation of nanostructured aluminum samples

IMR OpenIR

	Strain distribution during tensile deformation of nanostructured aluminum samples
	J. Kidmose; L. Lu; G. Winther; N. Hansen; X. Huang
	2012
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	47 期号:22 页码:7901-7907
摘要	To optimize the mechanical properties, especially formability, post-process deformation by cold rolling in the range 5-50 % reduction was applied to aluminum sheets produced by accumulative roll bonding to an equivalent strain of 4.8. During tensile testing high resolution maps of the strain distribution over the tensile sample gage length were obtained in situ using a commercial ARAMIS system. Significant improvements in total elongation from 6 to 13.3 % and in post-UTS uniform elongation from zero to 4.4 % were observed when introducing a post-process deformation step and the observations were underpinned by the in situ observations of the evolution of strain distribution in the sample during tensile straining. The mechanisms responsible for the enhancement were discussed based on strain rate sensitivity measurements and microstructural observations.
部门归属	[kidmose, j.; hansen, n.; huang, x.] tech univ denmark, danish chinese ctr nanomet, mat sci & adv characterizat sect, dept wind energy, dk-4000 roskilde, denmark. [lu, l.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [winther, g.] tech univ denmark, dept mech engn, dk-2800 lyngby, denmark.;kidmose, j (reprint author), tech univ denmark, danish chinese ctr nanomet, mat sci & adv characterizat sect, dept wind energy, riso campus, dk-4000 roskilde, denmark.;jkid@dtu.dk
关键词	Ultrafine-grained Aluminum Strength Microstructure Stress Tests Arb
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60033
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Kidmose,L. Lu,G. Winther,et al. Strain distribution during tensile deformation of nanostructured aluminum samples[J]. Journal of Materials Science,2012,47(22):7901-7907.
APA	J. Kidmose,L. Lu,G. Winther,N. Hansen,&X. Huang.(2012).Strain distribution during tensile deformation of nanostructured aluminum samples.Journal of Materials Science,47(22),7901-7907.
MLA	J. Kidmose,et al."Strain distribution during tensile deformation of nanostructured aluminum samples".Journal of Materials Science 47.22(2012):7901-7907.