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Anisotropy in microstructural features and tensile performance of laser powder bed fusion NiTi alloys

文献类型：期刊论文

作者Ge, Jinguo2,3,4; Yuan, Bo3; Chen, Hongjun3; Pan, Jiangang3; Liu, Qingyuan2; Yan, Ming5; Lu, Zhao1; Zhang, Shihong4; Zhang, Liang3
刊名JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
出版日期2023-05-01
卷号24页码:8656-8668
关键词LPBF NiTi alloy Processing window Anisotropic behavior Microstructural features Tensile performances
ISSN号2238-7854
DOI10.1016/j.jmrt.2023.05.046
通讯作者Ge, Jinguo(09gejinguo@sina.cn) ; Lu, Zhao(luzhao_gx@163.com) ; Zhang, Shihong(shzhang@imr.ac.cn) ; Zhang, Liang(zhangliang@szpt.edu.cn)
英文摘要From the viewpoint of the poor formability and mechanical anisotropy of laser powder bed fusion (LPBF)-processed NiTi alloys, three different energy densities, i.e., minimum value, median value, and maximum value, were adopted in this work. The anisotropic behavior in the microstructural distribution and tensile properties were explored to evaluate the per-formance stability of NiTi components within a wide processing window. The results showed that an excellent deposition quality was acquired when the energy density was within the range of 45-75 J/mm3. The phase constitution and microstructural features were similar even under different processing parameters. In a single melting pool, the columnar grains within the body zone exhibited {110}<001> and {100}<011> textures. However, no preferred orientation was observed for the fine dot-like sub-structures within the overlapping zone. The anisotropy in tensile strength and plasticity was mainly attributed to the columnar grains with preferred crystallographic orientation in the body zone. Only a dimple-like morphology was observed on the fracture surface, indicating a ductile tensile failure mechanism. The findings demonstrated that the stable microstruc-tural features and tensile performance of LPBF-processed NiTi components were ensured within a wide processing window (45-75 J/mm3), despite the anisotropic behavior along the transverse and longitudinal tensile directions.& COPY; 2023 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
资助项目ShenZhen Science and Technology Program[RCBS20221008093241051] ; ShenZhen Science and Technology Program[JSGG20200701095008016] ; ShenZhen Science and Technology Program[JSGG20210420091810029] ; Guangxi Key Laboratory of Manufacturing System amp; Advanced Manufacturing Technology[22354S016] ; Post-doctoral Foundation Project of Shenz-hen Polytechnic[6021330015K0] ; China Postdoctoral Science Foundation[2021M693230] ; Natural Science Foundation of Guangxi[2021JJB160022] ; Natural Science Foundation of China[52061007] ; Natural Science Foundation of China[52201225] ; Natural Science Foundation of China[51871066] ; Science and Technology Project of Guangxi[:2022ZYZX3015] ; Science and Technology Project of Guangxi[2022AB16014] ; Science and Technology Project of Guangxi[2021AB16009] ; Science and Technology Project of Guangxi[AA22068084]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001021992000001
出版者ELSEVIER
资助机构ShenZhen Science and Technology Program ; Guangxi Key Laboratory of Manufacturing System amp; Advanced Manufacturing Technology ; Post-doctoral Foundation Project of Shenz-hen Polytechnic ; China Postdoctoral Science Foundation ; Natural Science Foundation of Guangxi ; Natural Science Foundation of China ; Science and Technology Project of Guangxi
源URL[http://ir.imr.ac.cn/handle/321006/178408]  
专题金属研究所_中国科学院金属研究所
通讯作者Ge, Jinguo; Lu, Zhao; Zhang, Shihong; Zhang, Liang
作者单位1.Guilin Univ, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China
2.Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guangxi Key Lab Mfg Syst & Adv Mfg Technol, Guilin, Peoples R China
3.ShenZhen Polytech, Inst Intelligent Mfg Technol, Shenzhen 518055, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
5.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen Key Lab Addit Mfg High Performance Mat, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Ge, Jinguo,Yuan, Bo,Chen, Hongjun,et al. Anisotropy in microstructural features and tensile performance of laser powder bed fusion NiTi alloys[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,24:8656-8668.
APA Ge, Jinguo.,Yuan, Bo.,Chen, Hongjun.,Pan, Jiangang.,Liu, Qingyuan.,...&Zhang, Liang.(2023).Anisotropy in microstructural features and tensile performance of laser powder bed fusion NiTi alloys.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,24,8656-8668.
MLA Ge, Jinguo,et al."Anisotropy in microstructural features and tensile performance of laser powder bed fusion NiTi alloys".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 24(2023):8656-8668.

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来源：金属研究所

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