| 纳米相复合Al-Sn合金的反应球磨制备及性能研究 |
| |
| 引用本文： | 宋凯强,曾美琴,朱敏,胡仁宗,鲁忠臣.纳米相复合Al-Sn合金的反应球磨制备及性能研究[J].材料导报,2017,31(12):68-72. |
| |
| 作者姓名： | 宋凯强 曾美琴 朱敏 胡仁宗 鲁忠臣 |
| |
| 作者单位： | 1. 华南理工大学材料科学与工程学院,广州510641;广东省先进储能材料重点实验室,广州510641;2. 广东省先进储能材料重点实验室,广州510641;华南理工大学机械与汽车工程学院,广州510641 |
| |
| 基金项目： | 国家自然科学基金(51501065)；广东省自然科学基金(2014A030310395)；中央高校基本科研业务费(2014ZB0020) |
| |
| 摘 要： | 利用反应球磨制备Al-SnO_2-MgH_2粉末,然后通过压制和烧结制备出高热稳纳米相复合结构Al-Sn合金。运用X射线衍射仪(XRD)和扫描电镜(SEM)等研究反应球磨制备的纳米相复合Al-Sn合金的组织和性能。结果表明:采用两步法和添加MgH_2组元的方式所制备的机械合金化(MA)Al-SnO_2-MgH_2复合粉末,经压制和600℃烧结,合金中的SnO_2几乎全部被还原成单质Sn,并呈现双尺度结构。其中,共生反应形成的纳米级Sn粒子和Al_2O_3颗粒均匀弥散地分布在Al基体中,显著提高了合金的硬度,从而使合金表现出低的摩擦系数和磨损量。
|
| 关 键 词： | 纳米相复合 Al-Sn合金 反应球磨 高热稳性 摩擦学性能 |
Synthesis of Nano-phase Composite Al-Sn Alloy by Reaction Ball Milling Process and Its Performance |
| |
| SONG Kaiqiang,ZENG Meiqin,ZHU Min,HU Renzong and LU Zhongchen.Synthesis of Nano-phase Composite Al-Sn Alloy by Reaction Ball Milling Process and Its Performance[J].Materials Review,2017,31(12):68-72. |
| |
| Authors: | SONG Kaiqiang ZENG Meiqin ZHU Min HU Renzong and LU Zhongchen |
| |
| Affiliation: | School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640;Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640,School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640;Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640,School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640;Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640,School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640;Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640 and Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640;School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640 |
| |
| Abstract: | Reaction ball milling process was used to prepare Al-SnO2-MgH2 alloy powders,then a high thermal stability nanocomposite Al-Sn alloy was obtained by a combination of cold pressing and sintering.The effect of reaction ball milling process on the microstructure and properties were investigated by XRD and SEM.The results show that the SnO2 in the MA Al-SnO2-MgH2 alloy powder,which was produced by a two steps method with the addition of MgH2,was almost deoxidized into monolithic Sn after sintering at 600 ℃.Meanwhile,the in situ formed Sn exhibits a typical dual-scale structure.In particular,the symbiotic formed Sn and Al2 O3 were in nano-size and homogeneously distributed in the Al matrix,improving the hardness obviously and resulting in a significantly reduction of friction coefficient and wear volume. |
| |
| Keywords: | nano-phase composite Al-Sn alloy reaction ball milling process high thermal stability tribological properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《材料导报》浏览原始摘要信息 |
|
点击此处可从《材料导报》下载全文 |
|
