Characterization of lattice defects and tensile deformation of biomedical Co29Cr9W3Cu alloy produced by selective laser melting

doi:10.1016/j.addma.2019.100908

CORC > 金属研究所 > 中国科学院金属研究所

	Characterization of lattice defects and tensile deformation of biomedical Co29Cr9W3Cu alloy produced by selective laser melting
	Lu, Yanjin 2,3; Yang, Chunguang 1; Liu, Yujing 4; Yang, Ke 1; Lin, Jinxin 2,3
刊名	ADDITIVE MANUFACTURING
	2019-12-01
卷号	30 页码:13
关键词	Co29Cr9W3Cu alloy Selective laser melting Lattice defects Tensile deformation Martensitic transformation
ISSN号	2214-8604
DOI	10.1016/j.addma.2019.100908
通讯作者	Liu, Yujing(yujing.liu@uwa.edu.au) ; Lin, Jinxin(franklin@fjirsm.ac.cn)
英文摘要	In this study, novel biomedical Co29Cr9W3Cu samples were fabricated using selective laser melting (SLM) technology. In order to better understand the formation of the lattice defects during the melting process, and the tensile deformation mechanism of the SLM-produced Co29Cr9W3Cu samples, the microstructures of the samples before and after tensile deformation were observed using a scanning electron microscope (SEM), a transmission electron microscope (TEM), and an electron back-scattered diffraction (EBSD), respectively. The SEM morphology indicated that the non-equilibrium structure of the SLM-produced Co29Cr9W3Cu samples contained cellular and columnar subgrains. The TEM observation and EBSD analysis showed that the accumulated residual stress during the SLM process predominated in the overlapping regions between the adjacent scanning tracks, which consequently induced a larger number of the lattice defects, such as dislocations and overlapping stacking faults. The analysis of the tensile deformation revealed that the main plastic deformation was caused by the strain-induced martensitic transformation effect in the SLM-produced Co29Cr9W3Cu samples.
资助项目	National Natural Science Foundation of China[51801198]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000501768100010
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136214]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Yujing; Lin, Jinxin
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang, Liaoning, Peoples R China 2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, 155 Yangqiao Rd West, Fuzhou, Fujian, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Western Australia, Sch Mech & Chem Engn, 35 Stirling Highway, Perth, WA 6009, Australia
推荐引用方式 GB/T 7714	Lu, Yanjin,Yang, Chunguang,Liu, Yujing,et al. Characterization of lattice defects and tensile deformation of biomedical Co29Cr9W3Cu alloy produced by selective laser melting[J]. ADDITIVE MANUFACTURING,2019,30:13.
APA	Lu, Yanjin,Yang, Chunguang,Liu, Yujing,Yang, Ke,&Lin, Jinxin.(2019).Characterization of lattice defects and tensile deformation of biomedical Co29Cr9W3Cu alloy produced by selective laser melting.ADDITIVE MANUFACTURING,30,13.
MLA	Lu, Yanjin,et al."Characterization of lattice defects and tensile deformation of biomedical Co29Cr9W3Cu alloy produced by selective laser melting".ADDITIVE MANUFACTURING 30(2019):13.