The influences of aging treatment on the serrated flow of a superalloy specially designed for additive manufacturing

doi:10.1016/j.msea.2025.147984

IMR OpenIR

	The influences of aging treatment on the serrated flow of a superalloy specially designed for additive manufacturing
	Wu, Bin 1,2; Liang, Jingjing 2,3; Yang, Yanhong 2,3; Li, Jinguo 2,3; Sun, Xiaofeng 2
通讯作者	Liang, Jingjing(jjliang@imr.ac.cn)
	2025-04-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	927 页码:12
摘要	Additive manufacturing (AM) superalloys is the materials research frontier full of challenges nowadays. The present paper investigates the tensile deformation behavior of a novel superalloy specifically developed for additive manufacturing. Two kinds of sample state are used: the as-built (directly obtained from AM) and the heat-treated (endured aging treatment at 870 degrees C for 16 h). During tensile tests at 650 degrees C and 700 degrees C, two different strain rates were adopted. It was found that the strength and plasticity of the heat-treated alloy were significantly improved compared with that of the as-built. Furthermore, the as-built alloy exhibited significant serrated plastic flow, the types of serrations varied with the applied strain rate. The serrations were effectively suppressed through aging treatment. To reveal the underlying mechanisms, the microstructures of both as-built and heat-treated alloy were characterized and analyzed. The formation of serrations were ascribed to dynamic strain aging (DSA). This work provides implications for tailoring the microstructure in additively manufactured components to improve properties, thus supporting the practical application of additive manufacturing superalloys.
关键词	Laser directed energy deposition Additive manufacturing Portevin-le chatelier effect Dynamic strain aging Superalloys
资助者	National Science and Tech-nology Major Project of China
DOI	10.1016/j.msea.2025.147984
收录类别	SCI
语种	英语
资助项目	National Science and Tech-nology Major Project of China[Y2019-VII-0011-0151]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001423090800001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180028
专题	中国科学院金属研究所
通讯作者	Liang, Jingjing
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.CAS Key Lab, Space Mfg Technol, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Wu, Bin,Liang, Jingjing,Yang, Yanhong,et al. The influences of aging treatment on the serrated flow of a superalloy specially designed for additive manufacturing[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,927:12.
APA	Wu, Bin,Liang, Jingjing,Yang, Yanhong,Li, Jinguo,&Sun, Xiaofeng.(2025).The influences of aging treatment on the serrated flow of a superalloy specially designed for additive manufacturing.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,927,12.
MLA	Wu, Bin,et al."The influences of aging treatment on the serrated flow of a superalloy specially designed for additive manufacturing".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 927(2025):12.