Simultaneous improvement in strength and plasticity of Ti-24Nb-4Zr-8Sn manufactured by selective laser melting

doi:10.1016/j.matdes.2018.07.036

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	Simultaneous improvement in strength and plasticity of Ti-24Nb-4Zr-8Sn manufactured by selective laser melting
	Yang, CL ; Zhang, ZJ ; Li, SJ ; Liu, YJ ; Sercombe, TB ; Hou, WT ; Zhang, P ; Zhu, YK ; Hao, YL ; Zhang, ZF
刊名	MATERIALS & DESIGN
	2018-11-05
卷号	157 页码:52-59
关键词	Selective laser melting Strength and plasticity Strain hardening Bi-model structure
ISSN号	0264-1275
DOI	10.1016/j.matdes.2018.07.036
英文摘要	The strength and plasticity of metallic materials usually exhibit a trade-off relation. This study reports a simultaneous improvement in the ultimate tensile strength (UTS) and uniform elongation (UE) of Ti-24Nb-4Zr-8Sn (Ti2448) fabricated by selective laser melting (SLM), relative to those produced via forging. Detailed microstructural characterization reveals that the outstanding tensile property may result from the bi-model structure that forms during the rapid cooling associated with SLM. Coarse grains are surrounded by fine grains within the melt pool, which causes a back stress during tension. The back stress provides additional strain-hardening capacity, which postpones the initiation of necking and then leads to the simultaneous improvement of the strength and plasticity (SISP) of the Ti2448 alloy. Furthermore, the tensile property of the SLM-fabricated sample is anisotropic which is strongly related to the irregular shape of the melt pool. (C) 2018 Elsevier Ltd. All rights reserved.
学科主题	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000443826600005
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79834]
专题	金属研究所_中国科学院金属研究所
作者单位	1.[Yang, C. L. 2.Zhang, Z. J. 3.Li, S. J. 4.Hou, W. T. 5.Zhang, P. 6.Zhu, Y. K. 7.Hao, Y. L. 8.Zhang, Z. F. 9.Yang, R.] Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 10.[Liu, Y. J.
推荐引用方式 GB/T 7714	Yang, CL,Zhang, ZJ,Li, SJ,et al. Simultaneous improvement in strength and plasticity of Ti-24Nb-4Zr-8Sn manufactured by selective laser melting[J]. MATERIALS & DESIGN,2018,157:52-59.
APA	Yang, CL.,Zhang, ZJ.,Li, SJ.,Liu, YJ.,Sercombe, TB.,...&Yang, R.(2018).Simultaneous improvement in strength and plasticity of Ti-24Nb-4Zr-8Sn manufactured by selective laser melting.MATERIALS & DESIGN,157,52-59.
MLA	Yang, CL,et al."Simultaneous improvement in strength and plasticity of Ti-24Nb-4Zr-8Sn manufactured by selective laser melting".MATERIALS & DESIGN 157(2018):52-59.