| Low ductility at intermediate temperature of Ni-base superalloy M963 | |
| He, LZ; Zheng, Q; Sun, XF; Hou, GC; Guan, HR; Hu, ZQ | |
| Corresponding Author | He, LZ(cybhlz@163.net) |
| 2004-08-25 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 380Issue:1-2Pages:340-348 |
| Abstract | Tensile behavior of a cast Ni-base superalloy M963 under solution treatment and age treatment was studied in the temperature range from 20 to 1100degreesC. Extensive TEM investigations were performed after tensile test to fracture. Furthermore, the fracture surfaces were studied in the SEM. The yield and tensile strengths under the two conditions initially increase with temperature and reach a peak at around 800degreesC. Beyond this temperature, a sharp decrease of both yield and tensile strengths was observed. A ductility minimum was observed at 800degreesC under solution treatment and disappeared under age treatment. With the increment of temperature, the following sequence of deformed substructure features was observed: dislocation pairs --> connected slip bands within matrix channel under solution treatment and homogeneous interface dislocations under age treatment --> homogeneous dislocation network within matrix channel. The fracture surface observation indicated that localized slip which leading to glide plane decohesion caused the poor ductility of M963 alloy. (C) 2004 Published by Elsevier B.V. |
| Keyword | M963 alloy heat treatment strength ductility microstructure |
| DOI | 10.1016/j.msea.2004.03.057 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000223330200038 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/119404 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | He, LZ |
| Affiliation | Chinese Acad Sci, Inst Mat Res, Dept Superalloys, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | He, LZ,Zheng, Q,Sun, XF,et al. Low ductility at intermediate temperature of Ni-base superalloy M963[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2004,380(1-2):340-348. |
| APA | He, LZ,Zheng, Q,Sun, XF,Hou, GC,Guan, HR,&Hu, ZQ.(2004).Low ductility at intermediate temperature of Ni-base superalloy M963.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,380(1-2),340-348. |
| MLA | He, LZ,et al."Low ductility at intermediate temperature of Ni-base superalloy M963".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 380.1-2(2004):340-348. |
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