SiC<sub>p</sub>/AZ61复合材料的触变压缩变形研究

王建金; 闫洪; 张发云

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SiC_p/AZ61复合材料的触变压缩变形研究
Thixotropic compression deformation behavior of SiCp/AZ61 composite
2008年第S1期页码：306-309
纸质出版日期： 2008 ，
DOI：

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[1]王建金,闫洪,张发云.SiC_p/AZ61复合材料的触变压缩变形研究[J].特种铸造及有色合金,2008(S1):306-309.

Wang Jian-jin, Yan Hong, Zhang Fa-yun. Thixotropic compression deformation behavior of SiCp/AZ61 composite[J]. Special Casting & Nonferrous Alloys, 2008,(S1):306-309.
[1]王建金,闫洪,张发云.SiC_p/AZ61复合材料的触变压缩变形研究[J].特种铸造及有色合金,2008(S1):306-309. DOI：

Wang Jian-jin, Yan Hong, Zhang Fa-yun. Thixotropic compression deformation behavior of SiCp/AZ61 composite[J]. Special Casting & Nonferrous Alloys, 2008,(S1):306-309. DOI：

摘要

利用Thermecmastor-Z热模机对通过搅熔铸造-半固态等温热处理方法制备出的SiCp/AZ61复合材料半固态坯料进行触变压缩试验。分析了应变速率、变形温度以及SiC颗粒体积分数对压缩应力的影响。研究表明

SiCp/AZ61复合材料在半固态条件下的流动应力对变形温度和应变速率敏感

变形温度低

应变速率大

流动应力高。SiC颗粒增强相体积分数越大

流动应力越大。

Abstract

Compression tests on semi-solid SiCp/AZ61 composites fabricated by the method of stir-casting and isothermal heat treatment were carried using the Thermecmastor-Z dynamic material testing machine. Influences of strain-rate

temperature

and the volume of SiC for the compressive stress were analyzed. The results show that the true stress of semi-solid SiCp/AZ61 composite is sensitive to temperature and strain rate. The true stress is higher with the increasing of the volume of SiC particulate.