| 粉末冶金法制备AZ91镁合金的组织及热性能 |
| |
| 引用本文： | 张洋, 王西涛, 姜海, 何新波. 粉末冶金法制备AZ91镁合金的组织及热性能[J]. 工程科学学报, 2008, 30(12): 1393-1396. DOI: 10.13374/j.issn1001-053x.2008.12.020 |
| |
| 作者姓名： | 张洋 王西涛 姜海 何新波 |
| |
| 作者单位： | 北京科技大学新金属材料国家重点实验室,北京,100083;北京科技大学材料科学与工程学院,北京,100083 |
| |
| 基金项目： | 新世纪优秀人才支持计划 |
| |
| 摘 要： | 采用粉末冶金方法制备了AZ91镁合金,研究了烧结温度对合金的致密度和热导率的影响规律,并对烧结样品的物相和显微组织进行了分析.研究发现,AZ91镁合金的最佳烧结温度为610℃,致密度可以达到97.4%,实验条件下所获得的最高热导率可达到63.1W·m-1·K-1.X射线衍射和扫描电子显微镜结果分析表明,烧结合金组织主要由α-Mg固溶体和β-Mg17Al12相两相组成,其中β-Mg17Al12相表现出离异共晶β相和非连续析出β相两种主要存在形态.
|
| 关 键 词： | AZ91镁合金 粉末冶金 微观组织 热性能 |
| 收稿时间： | 2008-01-02 |
| 修稿时间： | 2008-03-22 |
Microstructure and thermal property of AZ91 magnesium alloy prepared by powder metallurgy |
| |
| ZHANG Yang, WANG Xitao, JIANG Hai, HE Xinbo. Microstructure and thermal property of AZ91 magnesium alloy prepared by powder metallurgy[J]. Chinese Journal of Engineering, 2008, 30(12): 1393-1396. DOI: 10.13374/j.issn1001-053x.2008.12.020 |
| |
| Authors: | ZHANG Yang WANG Xitao JIANG Hai HE Xinbo |
| |
| Abstract: | AZ91 magnesium alloy was fabricated by powder metallurgy. The effects of sintering temperature on the relative density and thermal conductivity were investigated. The microstructure of the material was observed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The result shows that the best sintering temperature is 610 12. At this sintering temperature the relative density can reach 97.4% and the highest thermal conductivity can be up to 63.1 W·m-1·K-1. The sintering microstructure of the alloy is composed of α-Mg solid solution matrix and β-Mg17Al12. The β phase exhibits two main forms, i.e., divorced eutectic 13 phase and discontinuous precipitated β phase. |
| |
| Keywords: | AZ91 magnesium alloy powder metallurgy microstructure thermal property |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《工程科学学报》浏览原始摘要信息 |
|
点击此处可从《工程科学学报》下载全文 |
|
