Effects of Temperature and Secondary Orientations on the Deformation Behavior of Single-Crystal Superalloys

doi:10.3390/cryst14110996

IMR OpenIR

	Effects of Temperature and Secondary Orientations on the Deformation Behavior of Single-Crystal Superalloys
	Liu, Sujie 1,2; Zong, Cui 3; Ma, Guangcai 4; Zhao, Yafeng 1,5; Huang, Junjie 1,2; Guo, Yi 1; Chen, Xingqiu 1
通讯作者	Guo, Yi(yguo@imr.ac.cn)
	2024-11-01
发表期刊	CRYSTALS
卷号	14 期号:11 页码:15
摘要	The tensile behavior of single-crystal superalloys was investigated at room temperature (RT) and 850 degrees C, focusing on various secondary orientations. Transmission electron microscopy (TEM) and quasi in situ electron backscatter diffraction (EBSD) were employed to study the deformation mechanisms across length scales. Deformation at 850 degrees C enhanced the tensile ductility of the samples, evidenced by the more uniform coverage of dislocations across the gamma and gamma ' phases, and the fracture mode switched from pure cleavage at room temperature to mixed mode due to accelerated void growth. The influence of secondary orientations on mechanical properties is insignificant at room temperature. However, the ductility of the different secondary orientation samples shows significant variations at 850 degrees C, among which the one with [001] rotated 37 degrees demonstrated superior ductility compared to others.
关键词	nickel-based superalloy secondary orientation quasi in situ EBSD geometrically necessary dislocations (GNDs) deformation mechanisms
资助者	National Natural Science Foundation of China ; National Science and Technology Major Project ; Special Projects of the Central Government in Guidance of Local Science and Technology Development
DOI	10.3390/cryst14110996
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; National Science and Technology Major Project[J2019-VI-0019-0134] ; Special Projects of the Central Government in Guidance of Local Science and Technology Development[2024010859-JH6/1006] ; [52201149]
WOS研究方向	Crystallography ; Materials Science
WOS类目	Crystallography ; Materials Science, Multidisciplinary
WOS记录号	WOS:001364168200001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/181497
专题	中国科学院金属研究所
通讯作者	Guo, Yi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Beijing Inst Aeronaut Mat, Natl Key Lab Adv High Temp Struct Mat, Beijing 100095, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Anal & Test Ctr, Shenyang 110016, Peoples R China 5.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Liu, Sujie,Zong, Cui,Ma, Guangcai,et al. Effects of Temperature and Secondary Orientations on the Deformation Behavior of Single-Crystal Superalloys[J]. CRYSTALS,2024,14(11):15.
APA	Liu, Sujie.,Zong, Cui.,Ma, Guangcai.,Zhao, Yafeng.,Huang, Junjie.,...&Chen, Xingqiu.(2024).Effects of Temperature and Secondary Orientations on the Deformation Behavior of Single-Crystal Superalloys.CRYSTALS,14(11),15.
MLA	Liu, Sujie,et al."Effects of Temperature and Secondary Orientations on the Deformation Behavior of Single-Crystal Superalloys".CRYSTALS 14.11(2024):15.