A mechanistic study for the fracture mode and ductility variation in a powder metallurgy superalloy hot-isostatic-pressed at sub- and super-solvus temperatures
文献类型：期刊论文
| 作者 | Chang, Litao1,2; Jin, Hao3,4 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2019-01-16 |
| 卷号 | 743页码:733-740 |
| 关键词 | Superalloy Hot-isostatic-press gamma '-phase Prior particle boundaries Strain localization EBSD |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2018.11.144 |
| 通讯作者 | Chang, Litao(litao.chang@manchester.ac.uk) |
| 英文摘要 | The mechanisms responsible for tensile fracture mode and ductility variation in a powder metallurgy superalloy hot-isostatic-pressed (HIPed) at near gamma'-solvus temperatures have been studied. The presence of deformed structure, decoration of precipitates along the prior particle boundaries and the duplex grain structure were identified as the microstructural features responsible for the inter-particle dominant fracture and low ductility of the sub-solvus HIPed material. They led to strain localization near the prior particle boundaries and crack initiation along them, which were decorated with precipitates and provided easy propagation paths for cracks. Whilst the increased grain size, increased grain size uniformity as well as unpinning of the prior particles boundaries precipitates, were identified as the factors contributing to the high ductility of the super-solvus HIPed material, which featured a more transgranular dominant fracture. The results presented also provide new insights in improving the processing of this type of materials. |
| 资助项目 | Xi'an University of Technology, China[101-451115005] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000456891500082 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Xi'an University of Technology, China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/131653]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chang, Litao |
| 作者单位 | 1.Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China 2.Univ Manchester, Mat Performance Ctr, Manchester M13 9PL, Lancs, England 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Litao,Jin, Hao. A mechanistic study for the fracture mode and ductility variation in a powder metallurgy superalloy hot-isostatic-pressed at sub- and super-solvus temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,743:733-740. |
| APA | Chang, Litao,&Jin, Hao.(2019).A mechanistic study for the fracture mode and ductility variation in a powder metallurgy superalloy hot-isostatic-pressed at sub- and super-solvus temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,743,733-740. |
| MLA | Chang, Litao,et al."A mechanistic study for the fracture mode and ductility variation in a powder metallurgy superalloy hot-isostatic-pressed at sub- and super-solvus temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 743(2019):733-740. |
入库方式： OAI收割
来源：金属研究所
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