Effect of stress-relief heat treatment on the stress-rupture properties of a nickel-based superalloy manufactured by laser powder bed fusion

doi:10.1177/02670836241282555

IMR OpenIR

	Effect of stress-relief heat treatment on the stress-rupture properties of a nickel-based superalloy manufactured by laser powder bed fusion
	Zhang, Weiguang 1,2; Gao, Shuang 1,2; Song, Zhenfeng 1,2; Li, Shuijin 1,2; Lan, Liang 1,2; Hou, Jieshan 3; Lu, Guoxin 4; He, Bo 1,2
通讯作者	Gao, Shuang(gaoshuang_alloy@163.com) ; He, Bo(jdhebo@163.com)
	2024-09-02
发表期刊	MATERIALS SCIENCE AND TECHNOLOGY
ISSN	0267-0836
页码	8
摘要	Residual stress is a ubiquitous phenomenon in laser powder bed fusion (LPBF) metal parts due to high temperature gradients and uneven heating during building processes. Subsequent stress-relief (SR) heat treatment is usually conducted to reduce the geometrical distortion and microscopic cracks induced by residual stress after the LPBF process. Using electron microscopy, X-ray diffraction, and stress-rupture tests, the experimental results revealed that the stress-rupture life of a nickel-based superalloy, IN625 alloy, subjected to SR treatment at 870 degrees C and 980 degrees C is inferior to that of the as-built (AB) alloy. The fundamental cause for this phenomenon is that more delta phase precipitates in the grains of the AB alloy during the stress-rupture test at 750 degrees C/230 MPa, resulting in an increased dispersion hardening effect and a decreased ductility. Furthermore, the Laves and delta phases along grain boundaries in the SR treated alloys are more likely to coarsen, which is the second reason for the decreased stress-rupture life of the SR treated alloys.
关键词	additive manufacturing IN625 alloy heat treatment delta phase stress-rupture property
资助者	Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing) ; Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing)
DOI	10.1177/02670836241282555
收录类别	SCI
语种	英语
资助项目	Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing) ; Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing)
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001305456700001
出版者	SAGE PUBLICATIONS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189546
专题	中国科学院金属研究所
通讯作者	Gao, Shuang; He, Bo
作者单位	1.Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China 2.Shanghai Univ Engn Sci, Res Ctr Hightemp Alloy Precis Forming, Shanghai 201620, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 4.Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Weiguang,Gao, Shuang,Song, Zhenfeng,et al. Effect of stress-relief heat treatment on the stress-rupture properties of a nickel-based superalloy manufactured by laser powder bed fusion[J]. MATERIALS SCIENCE AND TECHNOLOGY,2024:8.
APA	Zhang, Weiguang.,Gao, Shuang.,Song, Zhenfeng.,Li, Shuijin.,Lan, Liang.,...&He, Bo.(2024).Effect of stress-relief heat treatment on the stress-rupture properties of a nickel-based superalloy manufactured by laser powder bed fusion.MATERIALS SCIENCE AND TECHNOLOGY,8.
MLA	Zhang, Weiguang,et al."Effect of stress-relief heat treatment on the stress-rupture properties of a nickel-based superalloy manufactured by laser powder bed fusion".MATERIALS SCIENCE AND TECHNOLOGY (2024):8.