Unveiling the temperature-dependent tensile behavior of additively manufactured superalloys with varying carbon contents

doi:10.1016/j.msea.2025.147897

IMR OpenIR

	Unveiling the temperature-dependent tensile behavior of additively manufactured superalloys with varying carbon contents
	Chen, Shaofeng 1,2; Song, Wei 2; Lu, Nannan 2; Shi, Lei 3; Lei, Liming 3; Liang, Jingjing 2; Yu, Hao 1; Chen, Lei 4; Xu, Wei 1; Li, Jinguo 2
通讯作者	Lei, Liming(biamfirst@126.com) ; Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
	2025-03-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	925 页码:12
摘要	Recent research on the mechanical properties of additively manufactured (AM) superalloys is mostly focused on their tensile behavior at room temperature. Three carbon content (0.05 wt%, 0.1 wt%, 0.15 wt%) were selected to explore their effect on the tensile properties of a specific AM superalloy tested at temperatures up to 760 degrees C and 1000 degrees C. Thermodynamic calculations were carried out together with scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electron backscatter diffraction (EBSD) techniques. With the gradual increase in carbon content, tensile strength of superalloys at 760 degrees C is enhanced through precipitation strengthening of carbides and improved interfacial strength including both grain boundaries (GB) and gamma/gamma ' phase interfaces. Additionally, carbon affects the stacking fault energy, whereby the strength of alloy can be enhanced through lowering stacking fault energy. Conversely, exposure to 1000 degrees C leads to the degradation of primary MC carbides, accompanied by stress-induced recrystallization at the carbide/matrix interfaces. These trigger the matrix softening near carbides and ultimately lead to the strength reduction.
关键词	Additive manufacturing Ni-based superalloy Carbon Tensile strength
资助者	Foundation of China
DOI	10.1016/j.msea.2025.147897
收录类别	SCI
语种	英语
资助项目	Foundation of China[52204383]
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:001421346900001
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/321006/179924
专题	中国科学院金属研究所
通讯作者	Lei, Liming; Liang, Jingjing; Li, Jinguo
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.TaiHang Lab, Chengdu 610213, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shaofeng,Song, Wei,Lu, Nannan,et al. Unveiling the temperature-dependent tensile behavior of additively manufactured superalloys with varying carbon contents[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,925:12.
APA	Chen, Shaofeng.,Song, Wei.,Lu, Nannan.,Shi, Lei.,Lei, Liming.,...&Li, Jinguo.(2025).Unveiling the temperature-dependent tensile behavior of additively manufactured superalloys with varying carbon contents.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,925,12.
MLA	Chen, Shaofeng,et al."Unveiling the temperature-dependent tensile behavior of additively manufactured superalloys with varying carbon contents".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 925(2025):12.