| AZ31镁合金表面Al合金化层的制备与性能研究 |
| |
| 引用本文： | 叶宏,王宾,龙刚,邓代玉. AZ31镁合金表面Al合金化层的制备与性能研究[J]. 表面技术, 2010, 39(1): 20-22. DOI: 10.3969/j.issn.1001-3660.2010.01.006 |
| |
| 作者姓名： | 叶宏 王宾 龙刚 邓代玉 |
| |
| 作者单位： | 重庆理工大学,重庆,400050;重庆铁马工业集团有限公司,重庆,400050 |
| |
| 基金项目： | 重庆市科委应用基础项目(2008BB4330) |
| |
| 摘 要： | 为提高镁合金表面的耐蚀性,采用热喷涂技术在AZ31镁合金表面制备铝涂层,并利用脉冲钨极氩弧表面熔覆的方法进行表面重熔,获得富铝的合金化层,分析了合金化层的组织结构和性能。研究结果表明:在AZ31镁合金表面的铝合金化层中存在典型的树枝晶结构,含有金属间化合物Mg2Al3,Mg17Al12以及α-Mg和Al固溶体。显微硬度测试表明,铝合金化可使AZ31镁合金表面硬度由HV50左右提高到HV200左右。极化曲线测试表明,合金化层提高了镁合金表面的耐蚀性。
|
| 关 键 词： | 镁合金 脉冲钨极氩弧 Al合金化 性能 |
| 收稿时间： | 2009-09-02 |
| 修稿时间： | 2010-02-10 |
Preparation and Properties of Al Alloying on AZ31 Magnesium Alloy |
| |
| YE Hong,WANG Bin,LONG Gang and DENG Dai-yu. Preparation and Properties of Al Alloying on AZ31 Magnesium Alloy[J]. Surface Technology, 2010, 39(1): 20-22. DOI: 10.3969/j.issn.1001-3660.2010.01.006 |
| |
| Authors: | YE Hong WANG Bin LONG Gang DENG Dai-yu |
| |
| Affiliation: | 1.Chongqing University of Technology;Chongqing 400050;China;2.Chongqing Tiema Industries Corporation;China |
| |
| Abstract: | In order to improve surface properties of magnesium alloy, Al coating on the AZ31 magnesium alloy was prepared by the thermal spraying, and the Al-rich layer was obtained by pulse current gas tungsten arc melting. The microstructure and properties of the alloying layer were analyzed. The results show that the alloying layer has a typical dendritic structure, the alloying layer consistes of phases of Mg_2Al_3, Mg_(17)Al_(12), α-Mg and Al. The microhardness is increased from about HV50 to about HV200. The potentiodynamic polarization results confirmed that the corrosion resistance is enhanced. |
| |
| Keywords: | Magnesium alloy Pulse current gas tungsten arc Al alloying Properties |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《表面技术》浏览原始摘要信息 |
|
点击此处可从《表面技术》下载全文 |
|
