铸造技术2023，Vol.44Issue(12)：1139-1143,5.DOI:10.16410/j.issn1000-8365.2023.3262
Fe含量对Al-Fe压铸铝合金导电率及机械性能的影响
Effect of Fe Content on the Electrical Conductivity and Mechanical Properties of Al-Fe Die-Casting Alloy
蒋嗣本 1杨阳 1陆可馨1
作者信息
- 1. 比亚迪汽车工业有限公司,广东 深圳 518118
- 折叠
摘要
Abstract
In response to the current technical problem of balancing electrical conductivity,mechanical properties,cost and die-casting fluidity of cast aluminum alloys,a novel Al-Fe alloy was investigated with gradient Fe contents to maximize mechanical properties while maintaining a high electrical conductivity.The microstructure,high-temperature stability and different heat treatment processes were also examined.The results suggest that Al-(0.25％～3.0％)Fe-0.02％B(mass fraction)alloys exhibit good casting fluidity.Adding Fe could significantly improve the mechanical properties but slightly lower the electrical conductivity,as the strength increases by 130％,but the electrical conductivity decreases by 17％when the Fe content varies from 0.25％to 3.0％.The electrical conductivity and mechanical strength both slightly decrease in a high-temperature environment with decent stability.Aging treatment slightly improves both the electrical conductivity and strength by approximately 1.4％IACS and 7 MPa,respectively.The Al-Fe alloy should be a promising candidate for a high conductivity,middle strength,low-cost die-casting material.关键词
Al-Fe合金/压铸/导电率/机械强度/热处理Key words
Al-Fe alloys/die-casting/electrical conductivity/mechanical properties/heat treatment分类
金属材料引用本文复制引用
蒋嗣本,杨阳,陆可馨..Fe含量对Al-Fe压铸铝合金导电率及机械性能的影响[J].铸造技术,2023,44(12):1139-1143,5.
