热处理工艺对Al__2O3-SiO_2/Al-Si复合材料微屈服行为的影响  

Effects of Heat Treatment on Micro-yield Strength of Al_2O_3-SiO_2 /Al-Si Metallic Matrix Composites

作　　者：刘贯军[1] 李文芳[1] 谢勇[1] 

机构地区：[1]华南理工大学

出　　处：《特种铸造及有色合金》2006年第9期537-539,共3页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(19972021)

摘　　要：以Al2O3-SiO2/Al-Si复合材料为研究对象,采用连续加载法,详细研究了热处理工艺对Al-Si基复合材料微屈服行为的影响规律及其原因。结果表明,复合材料经淬火处理后的微屈服强度最低,而经时效处理后的微屈服强度则好于其他热处理工艺的效果。时效处理是提高Al-Si基复合材料微屈服强度的有效途径之一。Effects of heat treatment on micro-yield strength (MYS) of Al_2O_3-SiO_2 /Al-Si metallic matrix composites (MMC) have been investigated by the continuously loading method. The results indicate that the composites possess the minimum micro-yield strength after quenched treatment. And the micro-yield strength of the composites treated by aging is superior to that of the composites treated by other methodes, which shows that aging is a greatly effective method of improving Al-Si matrix composites.

关 键 词：Al-Si基复合材料 微屈服强度 硅酸铝纤维 热处理 

分 类 号：TG113[金属学及工艺—物理冶金]