摘要
采用洛氏硬度计、显微硬度计、光学显微镜(OM)、拉伸试验机等技术对7003铝合金时效行为、力学性能及组织进行了研究。结果表明,7003合金的硬度及强度都具有时效双峰特征。两个时效峰的硬度和强度相差不多,在较低温度下,时效第二峰的强度、硬度、塑性、韧性较高。
In this paper the aging behavior,mechanical properties and mierostructure of 7003 aluminum alloys were studied by means of Rockwell hardness tester,microhardness tester,optical microscope （OM） and tensile testing machine. The results show that the hardness and strength properties of 7003 aluminum alloy all have the features of double peaks. Although the hardness and strength of two peaks are almost equal but when it is at lower temperature, the strength, hardness, plasticity and ductility of the alloy at the seeond ageing peak are higher than those at the first ageing peak.
出处
《新技术新工艺》
2009年第9期106-108,共3页
New Technology & New Process
基金
国家自然科学基金资助项目(50771093)
关键词
7003合金
双峰时效
组织
性能
7003 alloy, Double-peak ageing, Mierostrueture, Properties
