Inhibition of precipitation structure transformation and enhancement of hardness by trace La addition in Cu-1Cr-0.1Zr alloy sheets
文献类型：期刊论文
| 作者 | Xiao, Yu1,2; Wang, Song-Wei3; Song, Hong-Wu3; Chen, Shuai-Feng3; Yu, Qi4; Zhang, Shi-Hong2,3 |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 38页码:9 |
| 关键词 | Cu-1Cr-0.1Zr alloy La Precipitation Thermodynamics calculation |
| DOI | 10.1016/j.mtcomm.2024.108413 |
| 通讯作者 | Song, Hong-Wu(hwsong@imr.ac.cn) |
| 英文摘要 | Cu-1Cr-0.1Zr and Cu-1Cr-0.1Zr-0.07La alloy sheets were prepared by the following process: vacuum casting- homogenization treatment- hot forging- solid solution treatment- cold rolling- aging treatment. The effect of trace La on the aging behavior and mechanical properties of Cu-1Cr-0.1Zr alloy was investigated. Compared to the Cu-1Cr-0.1Zr (0La) alloy, the Cu-1Cr-0.1Zr-0.07La (0.07La) alloy exhibited a significant increase in hardness and a slight decrease in electrical conductivity due to larger number of finer and coherent f.c.c Cr-rich precipitates. It was found that trace La can affects the evolution of precipitation phases. The thermodynamics calculation indicates that with La addition, the Cr-rich precipitates were much more inclined to nucleate with f.c. c structure, and the precipitation growth kinetics results indicate that the addition of La can reduce the activation energy of precipitation, promote the precipitation of f.c.c Cr phase and form Cr-poor zones, making it more difficult to form bcc nuclei. Thus, the transformation of nanoscale Cr-rich precipitates from f.c.c structure to bcc structure was inhibited due to trace La addition, causing higher hardness with appropriate conductivity. |
| 资助项目 | International Partnership Program of China Academy of Sciences[172GJHZ2022054GC] ; Key Research and Development Program of Jiangxi Province[20203ABC28W004] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001195126100001 |
| 出版者 | ELSEVIER |
| 资助机构 | International Partnership Program of China Academy of Sciences ; Key Research and Development Program of Jiangxi Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Song, Hong-Wu |
| 作者单位 | 1.Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China 2.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Cent South Univ, Coll Mech & Elect Engn, Changsha 410083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Yu,Wang, Song-Wei,Song, Hong-Wu,et al. Inhibition of precipitation structure transformation and enhancement of hardness by trace La addition in Cu-1Cr-0.1Zr alloy sheets[J]. MATERIALS TODAY COMMUNICATIONS,2024,38:9. |
| APA | Xiao, Yu,Wang, Song-Wei,Song, Hong-Wu,Chen, Shuai-Feng,Yu, Qi,&Zhang, Shi-Hong.(2024).Inhibition of precipitation structure transformation and enhancement of hardness by trace La addition in Cu-1Cr-0.1Zr alloy sheets.MATERIALS TODAY COMMUNICATIONS,38,9. |
| MLA | Xiao, Yu,et al."Inhibition of precipitation structure transformation and enhancement of hardness by trace La addition in Cu-1Cr-0.1Zr alloy sheets".MATERIALS TODAY COMMUNICATIONS 38(2024):9. |
入库方式： OAI收割
来源：金属研究所
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