中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effect of Rejuvenation Heat Treatment on the Creep Property and Microstructural Evolution of a Ni-Base Superalloy

文献类型:期刊论文

作者Wang, Linning1; Liu, Yuan3; Liang, Jingjing2
刊名APPLIED SCIENCES-BASEL
出版日期2020-02-01
卷号10期号:3页码:13
关键词Ni-base superalloy rejuvenation treatment creep carbides gamma ' precipitates
DOI10.3390/app10031187
通讯作者Liu, Yuan(Yuanliu@cauc.edu.cn)
英文摘要Interrupted creep tests were performed on a polycrystalline Ni-base superalloy, and rejuvenation heat treatment (RHT) was carried out to restore the creep resistance. During creep deformation, the microstructural evolution can be characterized as coarsening and rafting of gamma' precipitates, formation of dislocation networks in matrix channels, gamma' shearing by dislocations and carbides transformation from MC to M6C type. In the sample with low precrept strain, the dislocation networks can be effectively removed after RHT and the size and morphology of gamma' particles were similar to that just after heat treatment. However, the microstructure in the sample with higher creep strain after RHT cannot be fully restored to the original state in terms of dislocations and distribution of gamma' particles. The subsequent creep results exhibit that creep property is also relevant to the precrept strain, which exhibits a good agreement with microstructure observations. In addition, RHT cannot reverse the carbide transformation from MC to M6C type but enhances this process, which can be evident by the change of the area fraction of these two types of carbides. The effect of carbides transformation on the creep resistance of K465 alloy is not pronounced.
WOS研究方向Chemistry ; Engineering ; Materials Science ; Physics
语种英语
WOS记录号WOS:000525305900456
出版者MDPI
源URL[http://ir.imr.ac.cn/handle/321006/138432]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Yuan
作者单位1.Tianjin Univ Technol & Educ, Sch Mech Engn, Tianjin 300222, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Civil Aviat Univ China, Coll Aeronaut Engn, Tianjin 300300, Peoples R China
推荐引用方式
GB/T 7714
Wang, Linning,Liu, Yuan,Liang, Jingjing. Effect of Rejuvenation Heat Treatment on the Creep Property and Microstructural Evolution of a Ni-Base Superalloy[J]. APPLIED SCIENCES-BASEL,2020,10(3):13.
APA Wang, Linning,Liu, Yuan,&Liang, Jingjing.(2020).Effect of Rejuvenation Heat Treatment on the Creep Property and Microstructural Evolution of a Ni-Base Superalloy.APPLIED SCIENCES-BASEL,10(3),13.
MLA Wang, Linning,et al."Effect of Rejuvenation Heat Treatment on the Creep Property and Microstructural Evolution of a Ni-Base Superalloy".APPLIED SCIENCES-BASEL 10.3(2020):13.

入库方式: OAI收割

来源:金属研究所

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