IMECH-IR  > 流固耦合系统力学重点实验室
Atomistic study on shock behaviour of NiTi shape memory alloy
Yin QY(殷秋运); Wu XQ(吴先前); Huang CG(黄晨光); Wu, XQ (reprint author)
Source PublicationPHILOSOPHICAL MAGAZINE
2017
Volume97Issue:16Pages:1311-1333
ISSN1478-6435
Abstract

The shock behaviour of NiTi shape memory alloy is investigated by using molecular dynamics simulation. The nano-pillar samples of the alloy are subjected to the impact of a piston with a velocity of 350 m/s at initial environment temperatures of 325 and 500 K. At 325 K, we observe two different pathways of the formation of BCO phase, the gradient twins, and the detwinning phenomena, strongly depending on the local stress and the deformation state. As the initial temperature increases to 500 K, the plasticity is dominated by the dislocation movements rather than the twinning at 325 K. The phase transformation and plasticity result in stress attenuation when the stress wave propagates through the nano-pillar. Furthermore, it is interesting to note that multiple stress peaks occur due to the formation of local complex atomic structures with various wave speeds, leading to the catch up and overlap of the stress waves.

KeywordNiti Shape Memory Alloys Molecular Dynamics Phase Transformation Plasticity Stress Waves
DOI10.1080/14786435.2017.1294769
Indexed BySCI ; EI
Language英语
WOS IDWOS:000399959200003
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China 11332011 11402277
DepartmentLMFS冲击与耦合效应(LHO)
Classification二类
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60711
Collection流固耦合系统力学重点实验室
Corresponding AuthorWu, XQ (reprint author)
Recommended Citation
GB/T 7714
Yin QY,Wu XQ,Huang CG,et al. Atomistic study on shock behaviour of NiTi shape memory alloy[J]. PHILOSOPHICAL MAGAZINE,2017,97(16):1311-1333.
APA Yin QY,Wu XQ,Huang CG,&Wu, XQ .(2017).Atomistic study on shock behaviour of NiTi shape memory alloy.PHILOSOPHICAL MAGAZINE,97(16),1311-1333.
MLA Yin QY,et al."Atomistic study on shock behaviour of NiTi shape memory alloy".PHILOSOPHICAL MAGAZINE 97.16(2017):1311-1333.
Files in This Item: Download All
File Name/Size DocType Version Access License
A2017J016.pdf(5199KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yin QY(殷秋运)]'s Articles
[Wu XQ(吴先前)]'s Articles
[Huang CG(黄晨光)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yin QY(殷秋运)]'s Articles
[Wu XQ(吴先前)]'s Articles
[Huang CG(黄晨光)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yin QY(殷秋运)]'s Articles
[Wu XQ(吴先前)]'s Articles
[Huang CG(黄晨光)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: A2017J016.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.