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

doi:10.1016/j.jmrt.2023.05.046

IMR OpenIR

	Anisotropy in microstructural features and tensile performance of laser powder bed fusion NiTi alloys
	Ge, Jinguo 1,2,5; Yuan, Bo 1; Chen, Hongjun 1; Pan, Jiangang 1; Liu, Qingyuan 2; Yan, Ming 3; Lu, Zhao 4; Zhang, Shihong 5; Zhang, Liang 1
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)
	2023-05-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	24 页码:8656-8668
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/).
关键词	LPBF NiTi alloy Processing window Anisotropic behavior Microstructural features Tensile performances
资助者	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
DOI	10.1016/j.jmrt.2023.05.046
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001021992000001
出版者	ELSEVIER
引用统计	被引频次：8[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/321006/178409
专题	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.ShenZhen Polytech, Inst Intelligent Mfg Technol, Shenzhen 518055, 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.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen Key Lab Addit Mfg High Performance Mat, Shenzhen 518055, Peoples R China 4.Guilin Univ, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, 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.