| 稀土Ce对过共晶Mg-Si合金中初生Mg2Si相变质的影响 |
| |
| 引用本文： | 杜军,吕信裕,李文芳.稀土Ce对过共晶Mg-Si合金中初生Mg2Si相变质的影响[J].材料工程,2011(6):1-4. |
| |
| 作者姓名： | 杜军 吕信裕 李文芳 |
| |
| 作者单位： | 华南理工大学材料科学与工程学院; |
| |
| 基金项目： | 广东省自然科学基金资助项目(05300139) |
| |
| 摘 要： | 利用Mg-20%(质量分数,下同)Ce中间合金对过共晶Mg-Si合金进行变质处理,研究了Ce加入量对该合金中初生Mg2Si相变质效果(主要是形态)的影响规律,并讨论其变质机制.研究结果表明:当加入量达到并超过0.4%以后,稀土Ce可有效变质过共晶Mg-Si合金中的初生Mg2Si相,其形态由粗大树枝晶转变为具有非规则外形...
|
| 关 键 词： | 过共晶Mg-Si合金 稀土 变质 Mg2Si初晶 |
Effect of Ce on Modification of Primary Mg2Si Crystals in Hypereutectic Mg-Si Alloy |
| |
| DU Jun,LU Xin-yu,LI Wen-fang.Effect of Ce on Modification of Primary Mg2Si Crystals in Hypereutectic Mg-Si Alloy[J].Journal of Materials Engineering,2011(6):1-4. |
| |
| Authors: | DU Jun LU Xin-yu LI Wen-fang |
| |
| Affiliation: | DU Jun,LU Xin-yu,LI Wen-fang(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
| |
| Abstract: | The hypereutectic Mg-Si alloy was modified by rare-earth element of Ce using Mg-20%(mass fraction,the same below)Ce master alloy.The effect of Ce addition content on the modification of the primary Mg2Si crystals and its modification mechanism were investigated in the present study.The results show that the primary Mg2Si crystals could be effectively modified from coarse dendritic morphologies to polygonal particles with irregular shape when the adding content of Ce was increased to over than 0.4%.Over modi... |
| |
| Keywords: | hypereutectic Mg-Si alloy rare earth element modification primary Mg2Si crystal |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
