Modificated microstructure and enhanced mechanical properties of Cu-Sn-P alloy with rare earth La addition
文献类型：期刊论文
| 作者 | Wang, Songwei1; Yu, Kangkang2; Chen, Shuaifeng1; Deng, Siying1; Song, Hongwu1; Zhang, Shihong1 |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 39页码:10 |
| 关键词 | Cu-Sn-P alloy La microalloying Microstrcuture features Mechanical properties Strengthening mechanism |
| DOI | 10.1016/j.mtcomm.2024.109304 |
| 通讯作者 | Song, Hongwu(hwsong@imr.ac.cn) ; Zhang, Shihong(shzhang@imr.ac.cn) |
| 英文摘要 | Rare earths are often added to copper alloys as trace alloying elements to modify the structure and improve related properties. In this study, the Cu-7.8Sn-0.16 P and Cu-7.8Sn-0.16 P-0.15La alloy strips were fabricated through full-chain process of vacuum casting, cold rolling, intermediate annealing, cold rolling and low temperature annealing process. Then, the distinctive microstructure features and mechanical properties of Cu-7.8Sn0.16 P and Cu-7.8Sn-0.16 P-0.15La alloys were comprehensively analyzed in special view of rare earth affected phase types and property evolution. The results indicate that the addition 0.15 wt% La has effectively refined the dendrite segregation and dispersed the microporosity. Specifically, La combines with P and form a stable and dispersed micron sized LaP2 intermetallic compound, which replaces the low melting point (alpha+6+Cu3P) ternary phase in the La-free alloy. Furthermore, a new nanoscale La(Cu2P)2 precipitated phase is characterized in the Cu7.8Sn-0.16 P-0.15La alloy during low-temperature annealing process. As well, the tensile strength of Cu-7.8Sn0.16 P-0.15La strips display notable increase to 915 MPa from 834 MPa of Cu-7.8Sn-0.16 P after low-temperature annealing. Such increase in tensile strength is attributed to the formation of La-containing phase of varied sizes in the Cu-7.8Sn-0.16 P-0.15La alloy, where the nano scale La(Cu2P)2 precipitated phase makes the most significant contribution. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001246636400001 |
| 出版者 | ELSEVIER |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Song, Hongwu; Zhang, Shihong |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Liaoning, Peoples R China 2.Putian Iron Core Co Ltd, Wuxi 214104, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Songwei,Yu, Kangkang,Chen, Shuaifeng,et al. Modificated microstructure and enhanced mechanical properties of Cu-Sn-P alloy with rare earth La addition[J]. MATERIALS TODAY COMMUNICATIONS,2024,39:10. |
| APA | Wang, Songwei,Yu, Kangkang,Chen, Shuaifeng,Deng, Siying,Song, Hongwu,&Zhang, Shihong.(2024).Modificated microstructure and enhanced mechanical properties of Cu-Sn-P alloy with rare earth La addition.MATERIALS TODAY COMMUNICATIONS,39,10. |
| MLA | Wang, Songwei,et al."Modificated microstructure and enhanced mechanical properties of Cu-Sn-P alloy with rare earth La addition".MATERIALS TODAY COMMUNICATIONS 39(2024):10. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。