Influence of Fe on Microstructure and Mechanical Properties in P-doped Ni-Cr-Fe Alloys
文献类型：期刊论文
| 作者 | Lian, Xin-Tong1,2; Sun, Wen-Ru1; Xin, Xin1; Liu, Fang1; Zheng, Dan-Dan1 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 32期号:6页码:771-779 |
| 关键词 | Fe P Segregation Precipitate Mechanical properties |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-018-0815-4 |
| 通讯作者 | Sun, Wen-Ru(wrsun@imr.ac.cn) |
| 英文摘要 | The influence of Fe on the microstructure and mechanical properties of P-doped Ni-Cr-Fe alloys has been investigated. Results showed that increasing Fe content refined the dendrite microstructure and enhanced the solubility of P in as-cast alloys. The change of microhardness in different dendrite regions was attributed to the segregation of P atoms in solid solution state, which had strengthening effects. Increasing Fe contents from 15.2 to 60.7 wt% reduced the yield strength and tensile strength but had little influence on the elongation of alloys. The stress rupture life of alloys after heat treatment decreased with the increment of Fe contents, and the failure fracture modes transferred from transgranular to intergranular fracture mode. The change of fracture modes was due to the weakness of grain boundaries caused by the increment of Fe. In addition, the precipitation of M23C6 was believed to be related to the segregation of P toward grain boundaries, which led to the fluctuation of carbon and chromium atoms near the grain boundaries in alloys with low Fe contents. Consequently, the increment of Fe decreased the strength of matrix and changed the existence of P atoms and the precipitates at grain boundaries. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000466844400012 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/133119]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Wen-Ru |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lian, Xin-Tong,Sun, Wen-Ru,Xin, Xin,et al. Influence of Fe on Microstructure and Mechanical Properties in P-doped Ni-Cr-Fe Alloys[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(6):771-779. |
| APA | Lian, Xin-Tong,Sun, Wen-Ru,Xin, Xin,Liu, Fang,&Zheng, Dan-Dan.(2019).Influence of Fe on Microstructure and Mechanical Properties in P-doped Ni-Cr-Fe Alloys.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(6),771-779. |
| MLA | Lian, Xin-Tong,et al."Influence of Fe on Microstructure and Mechanical Properties in P-doped Ni-Cr-Fe Alloys".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.6(2019):771-779. |
入库方式： OAI收割
来源：金属研究所
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