Influence of solution temperature on microstructure and creep behaviors of a Ni-Co base superalloy for turbine disc

doi:10.1016/j.msea.2022.143741

IMR OpenIR

	Influence of solution temperature on microstructure and creep behaviors of a Ni-Co base superalloy for turbine disc
	Zhou, Zijian 1,2; Zhang, Rui 1; Cui, Chuanyong 1; Zhou, Yizhou 1; Sun, Xiaofeng 1
通讯作者	Zhang, Rui(rzhang@imr.ac.cn) ; Cui, Chuanyong(chycui@imr.ac.cn)
	2022-09-15
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	853 页码:13
摘要	The influence of solution temperature on the microstructure evolution and creep behavior of a new Ni-Co base superalloy for turbine discs, including the grain morphology, grain boundary character distribution (GBCD), and grain boundary (GB) carbide morphology, was investigated using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). The results showed that the creep fracture life first increased and then decreased with increasing solution temperature. The alloy solution treated at 1140 degrees C exhibited the best creep properties, with a creep life of 209 h. The enhanced creep performance of this alloy can be explained as follows: the volume fraction of GB carbides increased with increasing solution temperature, the diffuse fine granular carbides relieved stress concentration and strengthened GBs, the coarse primary gamma ' phases rapidly dissolved, and the volume fraction of the fine and dispersed secondary and tertiary gamma MODIFIER LETTER PRIME phases significantly increased. The narrower channels in the gamma matrix increased the resistance to dislocation motion. The coherent sigma 3 twin boundaries (TBs) with low interface energy hindered the dislocations and stacking faults intersecting the TBs on different slip planes. The relative frequency of sigma 3 TBs increased to 53.6% when the solution temperature was increased to 1140 degrees C. The high proportion of sigma 3 TBs played a key role in improving the creep resistance of the alloy.
关键词	Ni-Co base Superalloy Solution temperature Grain boundary character distribution Carbide morphology Creep behavior
资助者	National Key R&D Program of China ; IMR Innovation Fund ; Doctoral Start-up Foundation of Liaon-ing Province
DOI	10.1016/j.msea.2022.143741
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China ; IMR Innovation Fund ; Doctoral Start-up Foundation of Liaon-ing Province ; [2019YFA0705304] ; [2017YFA0700703] ; [2021-PY09]
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:000891444700001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176955
专题	中国科学院金属研究所
通讯作者	Zhang, Rui; Cui, Chuanyong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Zijian,Zhang, Rui,Cui, Chuanyong,et al. Influence of solution temperature on microstructure and creep behaviors of a Ni-Co base superalloy for turbine disc[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,853:13.
APA	Zhou, Zijian,Zhang, Rui,Cui, Chuanyong,Zhou, Yizhou,&Sun, Xiaofeng.(2022).Influence of solution temperature on microstructure and creep behaviors of a Ni-Co base superalloy for turbine disc.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,853,13.
MLA	Zhou, Zijian,et al."Influence of solution temperature on microstructure and creep behaviors of a Ni-Co base superalloy for turbine disc".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 853(2022):13.