Effect of laser power on the microstructure and properties of additive manufactured 17-4 PH stainless steel in different fabrication atmosphere

doi:10.1016/j.msea.2022.142846

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of laser power on the microstructure and properties of additive manufactured 17-4 PH stainless steel in different fabrication atmosphere
	Wang, De 1; Cheng, Donghai 1; Zhou, Zhangyu 1; Wang, Wenqin 2; Hu, Bo 1; Xie, Yujiang 3; Xiong, Zhenyu 1; Hu, Dean 1
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2022-04-06
卷号	839 页码:12
关键词	Directed energy deposition 17-4 PH stainless Steel Precipitates Fabrication atmosphere Thermal accumulation
ISSN号	0921-5093
DOI	10.1016/j.msea.2022.142846
通讯作者	Cheng, Donghai(70269@nchu.edu.cn) ; Wang, Wenqin(wangwenqin99@163.com)
英文摘要	The effect of laser power (400, 600, 800 W) on the microstructure and properties, such as porosity, strength and microhardness, of directed energy deposition 17-4 PH stainless steel in different fabrication atmosphere (atmosphere air and atmosphere Ar) was investigated via the view of thermal process. With the increase of laser power, the porosity of the samples decreased, and the Ar atmosphere further enhanced the effect through a power exponent law. The submicron (similar to 0.5 um) amorphous SiO2 particles and the nanoscale (similar to 35 nm) Cu-rich precipitates dispersed in the matrix strengthened the samples, and the dimensions changed when different atmosphere and heat treatment were employed which in turn influenced the strength and microhardness. The mechanical properties were also affected by content of austenite and the release of oxygen, which were dominated by thermal process and heat treatment.
资助项目	National Natural Science Foundation of China[51901090] ; Jiangxi Provincial Natural Science Foundation[2020ACBL214003] ; Jiangxi Provincial Natural Science Foundation[20192ACB21020] ; Jiangxi Provincial Natural Science Foundation[20212BAB204053] ; Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province[20204BCJ23003] ; Key Research and Development Program of Jiangxi Province[20202BBE52002] ; Thousand Talents Program of Jiangxi Province[jxsq2019201118]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000761894800002
资助机构	National Natural Science Foundation of China ; Jiangxi Provincial Natural Science Foundation ; Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province ; Key Research and Development Program of Jiangxi Province ; Thousand Talents Program of Jiangxi Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173210]
专题	金属研究所_中国科学院金属研究所
通讯作者	Cheng, Donghai; Wang, Wenqin
作者单位	1.Nanchang Hangkong Univ, Sch Aeronaut Mfg Engn, Nanchang 330063, Jiangxi, Peoples R China 2.Nanchang Univ, Sch Mech & Elect Engn, Nanchang 330031, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, De,Cheng, Donghai,Zhou, Zhangyu,et al. Effect of laser power on the microstructure and properties of additive manufactured 17-4 PH stainless steel in different fabrication atmosphere[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,839:12.
APA	Wang, De.,Cheng, Donghai.,Zhou, Zhangyu.,Wang, Wenqin.,Hu, Bo.,...&Hu, Dean.(2022).Effect of laser power on the microstructure and properties of additive manufactured 17-4 PH stainless steel in different fabrication atmosphere.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,839,12.
MLA	Wang, De,et al."Effect of laser power on the microstructure and properties of additive manufactured 17-4 PH stainless steel in different fabrication atmosphere".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 839(2022):12.