摘要
采用正交试验对ZL101合金进行了成分优化设计,并分析了合金元素对铝硅合金力学性能的影响.对改良后的合金进行了热处理工艺研究,其最佳热处理工艺条件为:500℃×5.5h+180℃×5h.研究结果表明,改良合金在铸态下的力学性能为:抗拉强度为244.57MPa,伸长率为5.95%,硬度为75.1 HB;在T6态下的力学性能为:抗拉强度为397.92MPa,伸长率为4.68%,硬度为141.2HB.
The compositions of ZL101 were optimized with an orthogonal test,and the effects of the alloying elements on the mechanical properties of Al-Si alloy were analyzed.The heat treatment process of the as-modified alloy was investigated.The optimal parameter obtained was 500 ℃ × 5.5 h＋180 ℃ × 5 h.The results showed that the mechanical properties of as-modified alloy were σb=244.57 MPa,δ=5.95％,HB=75.1 under the F treatment and σb=397.92 MPa,δ=4.68％,HB=141.2 under the T6 treatment,respectively.Compared with conventional casting aluminum silicon alloy for engine cylinder head,the asmodified alloy shows excellent mechanical properties.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第12期84-89,共6页
Journal of Hunan University:Natural Sciences
基金
教育部博士点基金资助项目(201205480816)
关键词
铸造铝硅合金
成分优化
热处理
力学性能
casting Al-Si alloy
composition optimization
heat treatment
mechanical properties
作者简介
张福全（1962-）,男,湖北大冶人,湖南大学教授 通讯联系人，E-mail：zhangfq@hnu.edu.cn
