| Effect of Aging Heat Treatment on the Microstructure and Creep Properties of the Cast Ni-Based Superalloy at Low Temperature | |
| Li, Xiang-Wei1,2; Wang, Li1; Liu, Xin-Gang1; Wang, Yao1; Dong, Jia-Sheng1; Lou, Lang-Hong1 | |
| Corresponding Author | Dong, Jia-Sheng(djs@imr.ac.cn) |
| 2019-05-01 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 32Issue:5Pages:651-658 |
| Abstract | Effect of aging heat treatment on the grain boundary microstructure and creep properties of a cast Ni-based superalloy was investigated. With increasing aging temperature from 750 to 1000 degrees C, M23C6 carbides along the grain boundaries evolve from fine distributed block, continuous film into the coarse discrete block. Moreover, the M23C6 carbides are mainly enveloped within layers along grain boundaries during 1000 degrees C aging. Creep rupture lifetime and elongation at 760 degrees C and 645MPa are improved with increasing the aging temperature. In particular, the creep rupture lifetime of the specimens aging at 1000 degrees C is one order of magnitude higher than that of the specimens aging at 750 degrees C. The enhancement of ductility induced by the envelopes plays a significant role in the improvement of creep rupture lifetime. |
| Keyword | Superalloys Creep Grain boundary Carbides Aging heat treatment |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| DOI | 10.1007/s40195-018-0827-0 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2016YFB0701403] ; National Natural Science Foundation of China[51701220] ; National Natural Science Foundation of China[51631008] ; National Natural Science Foundation of China[51671196] ; National Natural Science Foundation of China[51871210] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000463780700012 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132979 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Dong, Jia-Sheng |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Xiang-Wei,Wang, Li,Liu, Xin-Gang,et al. Effect of Aging Heat Treatment on the Microstructure and Creep Properties of the Cast Ni-Based Superalloy at Low Temperature[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(5):651-658. |
| APA | Li, Xiang-Wei,Wang, Li,Liu, Xin-Gang,Wang, Yao,Dong, Jia-Sheng,&Lou, Lang-Hong.(2019).Effect of Aging Heat Treatment on the Microstructure and Creep Properties of the Cast Ni-Based Superalloy at Low Temperature.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(5),651-658. |
| MLA | Li, Xiang-Wei,et al."Effect of Aging Heat Treatment on the Microstructure and Creep Properties of the Cast Ni-Based Superalloy at Low Temperature".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.5(2019):651-658. |
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