Effect of δ phase precipitation on grain growth and mechanical properties of Inconel 718 prepared by selective laser melting

doi:10.31577/km.2024.1.53

IMR OpenIR

	Effect of δ phase precipitation on grain growth and mechanical properties of Inconel 718 prepared by selective laser melting
	Na, Mingbo 1; Mu, Yiqiang 2,3; Zhang, Mingchuan 2; Hu, Jinbao 2; Lu, Shaowei 1; Xu, Qinsi 2,3
通讯作者	Xu, Qinsi(20180062@sau.edu.cn)
	2024
发表期刊	KOVOVE MATERIALY-METALLIC MATERIALS
ISSN	0023-432X
卷号	62 期号:1 页码:53-63
摘要	Selective laser melting (SLM) is widely used for forming metals due to its complexity in geometrical design. Defects are unavoidably introduced in the manufacturing process, which requires post-processing. But it leads to grain growth. In this work, a series of post-heat treatments were used to study the effect of 8 phase precipitation on grain growth and mechanical properties in SLM Inconel 718. Optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to study the microstructure of the specimens. The results showed that the precipitation of the 8 phase increased with increasing aging time and that the growth of grains was inhibited by the 8 phase. After 750 degrees C pre-aging for 48 h, the solution-treated specimen had the optimum strength and plasticity.
关键词	delta phase grain growth SLM Inconel 718 heat treatment
资助者	Excellent Youth Exchange Program of the China Association for Sci- ence and Technology
DOI	10.31577/km.2024.1.53
收录类别	SCI
语种	英语
资助项目	Excellent Youth Exchange Program of the China Association for Sci- ence and Technology
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001228360500004
出版者	REDAKCIA KOVOVE MATERIALY
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186515
专题	中国科学院金属研究所
通讯作者	Xu, Qinsi
作者单位	1.Shenyang Aerospace Univ, Coll Aerosp Engn, Shenyang 110136, Peoples R China 2.Shenyang Aerosp Univ, Coll Civil Aviat, Shenyang 110136, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Na, Mingbo,Mu, Yiqiang,Zhang, Mingchuan,et al. Effect of δ phase precipitation on grain growth and mechanical properties of Inconel 718 prepared by selective laser melting[J]. KOVOVE MATERIALY-METALLIC MATERIALS,2024,62(1):53-63.
APA	Na, Mingbo,Mu, Yiqiang,Zhang, Mingchuan,Hu, Jinbao,Lu, Shaowei,&Xu, Qinsi.(2024).Effect of δ phase precipitation on grain growth and mechanical properties of Inconel 718 prepared by selective laser melting.KOVOVE MATERIALY-METALLIC MATERIALS,62(1),53-63.
MLA	Na, Mingbo,et al."Effect of δ phase precipitation on grain growth and mechanical properties of Inconel 718 prepared by selective laser melting".KOVOVE MATERIALY-METALLIC MATERIALS 62.1(2024):53-63.