Effects of P on microstructures and tensile properties in Ni17Cr and Ni17Cr15Fe model alloys
文献类型：期刊论文
| 作者 | Li, Shaowei2,3; Liu, Fang2; Si, Tianxiao2; Xue, Chaochao2,3; Sun, Wenru1,2 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 200页码:14 |
| 关键词 | Model alloys Phosphorus Microstructure evolution Tensile properties |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.112895 |
| 通讯作者 | Liu, Fang(fangliu@imr.ac.cn) ; Sun, Wenru(wrsun@imr.ac.cn) |
| 英文摘要 | In the present work, two model alloy systems which were NiCr (0Fe) and NiCrFe (15Fe) alloys with different phosphorus (P) contents were prepared and subjected to the same heat treatment. The influence of P on microstructures and 650 degrees C tensile properties in two model alloys was investigated. The results showed that the precipitation of intergranular alpha-Cr phases was inhibited by the addition of P and the addition of Fe made alpha-Cr phases tend to precipitate in granular form rather than lamellar form at grain boundaries. Meanwhile, the increase of P content promoted the grain growth for 0Fe alloys while had little effect for 15Fe alloys, and the proportion of Sigma 3 grain boundaries of the two model alloys both decreased with the increase of P content. The 650 degrees C yield and tensile strength of 0Fe alloys showed a faster decreasing trend with increasing the P content while the elongation both increased significantly. The main grain boundary strengthening mechanism gradually changed from the pinning effect of alpha-Cr phases to the Sigma 3 grain boundary strengthening and P atoms segregation strengthening with increasing the P content. Thus, the fracture mode transformed from single intergranular fracture to mixture of transgranular and intergranular fracture with the increase of P content. In addition, the intragranular strengthening effect of Fe and P also contributed to the strength of 15Fe alloys, which reduced the decline rate of tensile strength. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001054233600001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178993]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Fang; Sun, Wenru |
| 作者单位 | 1.72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shaowei,Liu, Fang,Si, Tianxiao,et al. Effects of P on microstructures and tensile properties in Ni17Cr and Ni17Cr15Fe model alloys[J]. MATERIALS CHARACTERIZATION,2023,200:14. |
| APA | Li, Shaowei,Liu, Fang,Si, Tianxiao,Xue, Chaochao,&Sun, Wenru.(2023).Effects of P on microstructures and tensile properties in Ni17Cr and Ni17Cr15Fe model alloys.MATERIALS CHARACTERIZATION,200,14. |
| MLA | Li, Shaowei,et al."Effects of P on microstructures and tensile properties in Ni17Cr and Ni17Cr15Fe model alloys".MATERIALS CHARACTERIZATION 200(2023):14. |
入库方式： OAI收割
来源：金属研究所
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