Laser melting deposition of a porosity-free alloy steel by application of high oxygen-containing powders mixed with Cr particles

doi:10.1016/j.vacuum.2018.10.059

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	Laser melting deposition of a porosity-free alloy steel by application of high oxygen-containing powders mixed with Cr particles
	Kang, Hongwei 2; Dong, Zhihong 3; Zhang, Wei 2; Xie, Yujiang 3; Peng, Xiao 1
刊名	VACUUM
	2019
卷号	159 页码:319-323
关键词	Laser metal deposition Alloy steels Porosity Microstructure TEM
ISSN号	0042-207X
DOI	10.1016/j.vacuum.2018.10.059
通讯作者	Peng, Xiao(xpeng@imr.ac.cn)
英文摘要	Laser melting deposition (LMD) of an alloy steel by application of commercial 12CrNi2 powder with 0 content as high as 0.53 wt% has been investigated. It shows that the LMD alloy steel contains micron-sized pores. The pore formation, which is assumed to result from gas bubbles due to the reaction of carbon and oxygen in the laser molten pool, can be prevented by mixing the alloy steel powder with an appropriate amount of Cr particles. The result is interpreted based on reaction thermodynamics in the molten pool in combination with TEM observation of the microstructure of the LMDed alloy steel.
资助项目	National Key Research and Development Program of China[2016YFB1100203]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000454964400043
资助机构	National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130984]
专题	金属研究所_中国科学院金属研究所
通讯作者	Peng, Xiao
作者单位	1.Nanchang Hangkong Univ, Sch Mat Sci & Engn, 696 Fenghenan Ave, Nanchang 330063, Jiangxi, Peoples R China 2.Univ Sci & Technol China, Coll Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Kang, Hongwei,Dong, Zhihong,Zhang, Wei,et al. Laser melting deposition of a porosity-free alloy steel by application of high oxygen-containing powders mixed with Cr particles[J]. VACUUM,2019,159:319-323.
APA	Kang, Hongwei,Dong, Zhihong,Zhang, Wei,Xie, Yujiang,&Peng, Xiao.(2019).Laser melting deposition of a porosity-free alloy steel by application of high oxygen-containing powders mixed with Cr particles.VACUUM,159,319-323.
MLA	Kang, Hongwei,et al."Laser melting deposition of a porosity-free alloy steel by application of high oxygen-containing powders mixed with Cr particles".VACUUM 159(2019):319-323.