Effect of uniaxial loading direction on mechanical responses and texture evolution in cold pilgered Zircaloy-4 tube: Experiments and modeling

doi:10.1016/j.ijsolstr.2020.12.015

IMR OpenIR

	Effect of uniaxial loading direction on mechanical responses and texture evolution in cold pilgered Zircaloy-4 tube: Experiments and modeling
	Deng, Siying 1; Song, Hongwu 1; Liu, Huan 1,2; Zhang, Shi-Hong 1
通讯作者	Song, Hongwu(hwsong@imr.ac.cn)
	2021-03-15
发表期刊	INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
ISSN	0020-7683
卷号	213 页码:63-76
摘要	Mechanical responses of cold pilgered Zircaloy-4 (Zr-4) tubes are measured under different uniaxial (tension/compression) loading directions. Tensile tests were carried out along three directions: rolling direction (RD), transverse direction (TD) and 45 degrees to the rolling direction (45RD) at quasi static strain rate. Compression test was also performed in the RD. Texture was characterized at intermediate strains with electron backscattered diffraction method. For different uniaxial loading conditions, anisotropic yield stress and strain hardening behavior can be observed. Such complex mechanical behavior is well explained with the variations in activation of deformation mechanisms predicted by the Schmid factor distribution and visco-plastic self-consistent (VPSC) model. In order to calibrate the VPSC model's parameters more accurately, both mechanical responses and texture changes for four different directional tests are compared with VPSC simulations. The calculated Lankford coefficients are also calibrated with anisotropic tensile results. Furthermore, a deepening understanding of the texture evolution under different loading directions were disclosed based on VPSC method. The results indicate that the activity of deformation mechanisms changes significantly with different uniaxial loading directions. Non-prismatic slips with higher critical resolved shear stress, e.g. basal and pyramidal slip, make larger contributions to the yield and strengthening stress resulting in the highest stress in TD compared with RD and 45RD. Compression test along RD prefers the activation for tensile twinning (TTW). Meanwhile, TTW can be detected in 45RD and TD tension owing to the spread distribution of initial texture towards TD. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Zircaloy-4 Uniaxial loading Deformation mechanism Texture VPSC
资助者	National Natural Science Foundation of China
DOI	10.1016/j.ijsolstr.2020.12.015
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51875547]
WOS研究方向	Mechanics
WOS类目	Mechanics
WOS记录号	WOS:000615711200005
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160875
专题	中国科学院金属研究所
通讯作者	Song, Hongwu
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Deng, Siying,Song, Hongwu,Liu, Huan,et al. Effect of uniaxial loading direction on mechanical responses and texture evolution in cold pilgered Zircaloy-4 tube: Experiments and modeling[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2021,213:63-76.
APA	Deng, Siying,Song, Hongwu,Liu, Huan,&Zhang, Shi-Hong.(2021).Effect of uniaxial loading direction on mechanical responses and texture evolution in cold pilgered Zircaloy-4 tube: Experiments and modeling.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,213,63-76.
MLA	Deng, Siying,et al."Effect of uniaxial loading direction on mechanical responses and texture evolution in cold pilgered Zircaloy-4 tube: Experiments and modeling".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 213(2021):63-76.