Effects of post-weld heat treatment on microstructure and mechanical properties of Hastelloy N superalloy welds
文献类型：期刊论文
| 作者 | Wang, WX; Jiang, L; Li, CW; Leng, B; Ye, XX; Liu, RD; Chen, SJ; Yu, K; Li, ZJ; Zhou, XT |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2019 |
| 卷号 | 19期号:-页码:230—237 |
| 关键词 | TENSILE PROPERTIES AFFECTED ZONE M6C CARBIDE BEHAVIOR PRECIPITATION CRACKING |
| ISSN号 | 2352-4928 |
| DOI | 10.1016/j.mtcomm.2019.02.004 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The effects of post-weld heat treatment (PWHT) on the microstructure and mechanical properties of Hastelloy N superalloy welds were systematically investigated. Eutectic-like M6C carbides and nano-sized M2C carbides were observed in the interdendritic region of the as-welded specimens, with finer granular M6C carbides precipitating at the dendrite boundaries. With the increase in the PWHT temperature, the nano-sized M2C carbides dissolved, while the M6C carbides at the dendrite boundaries coarsened. When the PWHT temperature increased to 950 degrees C, the nano-sized M2C carbides completely disappeared. Consequently, the weld with the PWHT at higher temperatures exhibited lower micro-hardness, lower yield strength, and higher elongation. In particular, the elongation increased by 63% after applying the PWHT at 950 degrees C for 6 h. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31579]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, WX,Jiang, L,Li, CW,et al. Effects of post-weld heat treatment on microstructure and mechanical properties of Hastelloy N superalloy welds[J]. MATERIALS TODAY COMMUNICATIONS,2019,19(-):230—237. |
| APA | Wang, WX.,Jiang, L.,Li, CW.,Leng, B.,Ye, XX.,...&Zhou, XT.(2019).Effects of post-weld heat treatment on microstructure and mechanical properties of Hastelloy N superalloy welds.MATERIALS TODAY COMMUNICATIONS,19(-),230—237. |
| MLA | Wang, WX,et al."Effects of post-weld heat treatment on microstructure and mechanical properties of Hastelloy N superalloy welds".MATERIALS TODAY COMMUNICATIONS 19.-(2019):230—237. |
入库方式： OAI收割
来源：上海应用物理研究所
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