仿美7075高强度铝合金

介绍了国产仿美7075合金薄板,厚板,棒、管、型材,线材,锻件,模锻件样品的初步分析结果。仿美7075有三种合金成份:即等效美国的低纯7075,高纯7075,高纯7175。并制订了-T6、-T73、-T76状态的热处理制度。仿美7075的力学性能已达到美国7075技术标准。且低、高温力学性能稳定,缺口敏感性、周期强度、断裂韧性等主要综合性能较好。

High Strength Aluminum Alloy Imitating U. S. 7075

The results of primary examinations of light gage sheets, plants, rods, tubes, sections, wires, forgings and stampworks made of imitating U. S. 7075 alloy are related. There are three kinds of alloys imitating U. S. 7075, namely, the alloy equivalent to low purity 7075, the alloy equivalent to high purity 7075, and the alloy equivalent to high purity 7175. The regulations of heat treatment at -T6, -T73 and -T76 are made. The mechanical properties of those imitating 7075 alloys already reach the requirements of the specifications of U. S. 7075, The mechanical properties at low temperature and high temperature are stable, the main comprehensive performances such as notch sensitivity, periodical strength and fracture toughness are quite good.