In-situ synchrotron diffraction study on the anisotropic deformation and phase transformation behaviors in NiTi shape memory alloy fabricated by laser powder bed fusion

IF 10.3 1区 工程技术 Q1 ENGINEERING, MANUFACTURING Additive manufacturing Pub Date : 2024-09-25 DOI:10.1016/j.addma.2024.104566
Pengyue Gao , Zhen Zhang , Jianzhou Huang , Dongdong He , Runguang Li , Qisheng Feng , Guangyao Chen , Kai Zheng , Xueliang Kang , Caijuan Shi , Yang Ren , Huiping Ren , Xionggang Lu , Chonghe Li
{"title":"In-situ synchrotron diffraction study on the anisotropic deformation and phase transformation behaviors in NiTi shape memory alloy fabricated by laser powder bed fusion","authors":"Pengyue Gao ,&nbsp;Zhen Zhang ,&nbsp;Jianzhou Huang ,&nbsp;Dongdong He ,&nbsp;Runguang Li ,&nbsp;Qisheng Feng ,&nbsp;Guangyao Chen ,&nbsp;Kai Zheng ,&nbsp;Xueliang Kang ,&nbsp;Caijuan Shi ,&nbsp;Yang Ren ,&nbsp;Huiping Ren ,&nbsp;Xionggang Lu ,&nbsp;Chonghe Li","doi":"10.1016/j.addma.2024.104566","DOIUrl":null,"url":null,"abstract":"<div><div>The stress-induced martensitic transformation (SIMT) and plastic deformation are the crucial factors governing the functional and mechanical properties of polycrystalline NiTi shape memory alloys. This study investigated and compared the SIMT and deformation behaviors along the building direction (BD) and horizontal direction (HD) of NiTi components fabricated by laser powder bed fusion (LPBF), using electron backscatter diffraction (EBSD) and in-situ synchrotron-based X-ray diffraction during uniaxial tension. The experimental results revealed that loading along the HD resulted in both a higher SIMT rate and increased dislocation density compared to the BD of the printed block. Additionally, both HD and BD loadings demonstrated multiple lattice correspondences from the B2-austenite to B19'-martensite phase. The BD sample, with its more complex grain boundary network, densely distributed localized stress and strain, as well as, smaller grain size, contributed to a lower SIMT rate and dislocation density. These findings underscore the impact of crystallographic orientation and microstructural characteristics on the mechanical responses and SIMTs of LPBF-fabricated NiTi alloys.</div></div>","PeriodicalId":7172,"journal":{"name":"Additive manufacturing","volume":"96 ","pages":"Article 104566"},"PeriodicalIF":10.3000,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Additive manufacturing","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214860424006122","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0

Abstract

The stress-induced martensitic transformation (SIMT) and plastic deformation are the crucial factors governing the functional and mechanical properties of polycrystalline NiTi shape memory alloys. This study investigated and compared the SIMT and deformation behaviors along the building direction (BD) and horizontal direction (HD) of NiTi components fabricated by laser powder bed fusion (LPBF), using electron backscatter diffraction (EBSD) and in-situ synchrotron-based X-ray diffraction during uniaxial tension. The experimental results revealed that loading along the HD resulted in both a higher SIMT rate and increased dislocation density compared to the BD of the printed block. Additionally, both HD and BD loadings demonstrated multiple lattice correspondences from the B2-austenite to B19'-martensite phase. The BD sample, with its more complex grain boundary network, densely distributed localized stress and strain, as well as, smaller grain size, contributed to a lower SIMT rate and dislocation density. These findings underscore the impact of crystallographic orientation and microstructural characteristics on the mechanical responses and SIMTs of LPBF-fabricated NiTi alloys.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
激光粉末床熔融法制造的镍钛形状记忆合金各向异性变形和相变行为的原位同步辐射衍射研究
应力诱导马氏体转变(SIMT)和塑性变形是影响多晶镍钛形状记忆合金功能和机械性能的关键因素。本研究利用电子反向散射衍射(EBSD)和原位同步辐射 X 射线衍射,研究并比较了激光粉末床熔融(LPBF)制造的镍钛元件在单轴拉伸过程中沿构建方向(BD)和水平方向(HD)的 SIMT 和变形行为。实验结果表明,与印刷块的BD相比,沿HD加载会导致更高的SIMT速率和更高的位错密度。此外,HD 和 BD 加载均显示出从 B2-austenite 到 B19'-martensite 相的多种晶格对应关系。BD 样品的晶界网络更复杂,局部应力和应变分布更密集,晶粒尺寸更小,因此 SIMT 速率和位错密度更低。这些发现强调了晶体取向和微结构特征对 LPBF 制成的镍钛合金的机械响应和 SIMT 的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Additive manufacturing
Additive manufacturing Materials Science-General Materials Science
CiteScore
19.80
自引率
12.70%
发文量
648
审稿时长
35 days
期刊介绍: Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.
期刊最新文献
Numerical model of jet formation during melt electrowriting for fabrication of precise structures Non-destructive evaluation of additively manufactured superalloy IN718 via integrating microfocus X-ray computed tomography and non-linear acoustics Understanding the solute segregation and redistribution behavior in rapidly solidified binary Ti-X alloys fabricated through non-equilibrium laser processing Correlating microstructural and rheological variations in acrylonitrile-butadiene-styrene (ABS) with interlayer bond formation in material extrusion additive manufacturing Prediction of residual stresses in additively manufactured parts using lumped capacitance and classical lamination theory
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1