Refinement of α′ Martensite by Oxygen in Selective Laser Melted Ti-6Al-4V

doi:10.1007/s40195-023-01657-x

IMR OpenIR

	Refinement of α′ Martensite by Oxygen in Selective Laser Melted Ti-6Al-4V
	Nurly, Hasfi F.1,2; Zhang, Jinhu 2; Ren, Dechun 2; Cai, Yusheng 2; Ji, Haibin 2; Xu, Dongsheng 1,2; Dong, Zhicheng 3; Wang, Hao 3; Hu, Qingmiao 2; Lei, Jiafeng 2; Yang, Rui 1,2,4
通讯作者	Ji, Haibin(hbji@imr.ac.cn) ; Yang, Rui(ryang@imr.ac.cn)
	2024-02-12
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	16
摘要	Oxygen is crucial in influencing the microstructure evolution of selective laser melted (SLMed) Ti-6Al-4V, significantly impacting its applicability in various sectors. Therefore, this study investigates the influnce of oxygen on microstructure evolution, particularly alpha ' martensite transformation and refinement mechanisms. Four alloys, Ti-6Al-4V-xO (x = 0.11, 0.16, 0.21, and 0.25 wt%), were fabricated by the SLM process. The martensite start temperature (M-s) of Ti-6Al-4V, as evaluated by computation, is 656.8 degrees C, and oxygen was found to increase the M-s by about 10 degrees C per 0.1 wt%. The SLMed alloy samples exhibit [001](beta) growth texture along the build direction. Crystallographic analysis of martensite morphology suggests internal twinning on {10 (1) over bar1} planes as the lattice invariant strain, which becomes more predominant with increasing oxygen content. Refinement of alpha ' martensite plates by oxygen is due to increased lattice distortion, reduced prior beta grain size, and oxygen segregation to beta grain boundaries. Our findings contribute to improving the understanding of the effect of oxygen on the transformation mechanism of alpha ' martensite during SLM of Ti-6Al-4V.
关键词	Selective laser melting alpha ' Martensite Martensite start temperature Oxygen Ti-6Al-4V
资助者	National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team Project ; CAS-TWAS President's Fellowship for International PhD Students
DOI	10.1007/s40195-023-01657-x
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52205431] ; CAS Interdisciplinary Innovation Team Project[JCTD-2020-10] ; CAS-TWAS President's Fellowship for International PhD Students
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001161045100002
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：7[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/321006/184476
专题	中国科学院金属研究所
通讯作者	Ji, Haibin; Yang, Rui
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Shanghai Sci & Technol, Interdisciplinary Ctr Addit Mfg, Sch Mat & Chem, Shanghai 200093, Peoples R China 4.ShanghaiTech Univ, Ctr Adapt Syst Engn, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Nurly, Hasfi F.,Zhang, Jinhu,Ren, Dechun,等. Refinement of α′ Martensite by Oxygen in Selective Laser Melted Ti-6Al-4V[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:16.
APA	Nurly, Hasfi F..,Zhang, Jinhu.,Ren, Dechun.,Cai, Yusheng.,Ji, Haibin.,...&Yang, Rui.(2024).Refinement of α′ Martensite by Oxygen in Selective Laser Melted Ti-6Al-4V.ACTA METALLURGICA SINICA-ENGLISH LETTERS,16.
MLA	Nurly, Hasfi F.,et al."Refinement of α′ Martensite by Oxygen in Selective Laser Melted Ti-6Al-4V".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):16.