摘要
采用拉伸测试、硬度测试和电导率测试研究了过时效状态下7085铝合金锻件强度、电导率和硬度三者之间的对应关系。结果显示强度与电导率和硬度存在线性对应关系,强度与电导率对应关系式为σb=-21.085γ+1396.7,强度与硬度对应关系式为σb=6.866H-75.53,强度与电导率和硬度拟合结果与实际测试结果符合较好。因此,在实际生产中可以用硬度及电导率等快速检测方法监控产品质量。
The relationship of strength, hardness and electrical conductivity of 7085 alloy forgings after over-aging was investigated by tensile, electrical conductivity and hardness tests. The results show that there is a relative linear relationship between strength and electrical conductivity and hardness respectively, and the corresponding relationship for strength and electrical conductivity is σb=-21.085γ＋1396.7, for strength and hardness, σb=6.866H-75.53. Fitting results between strength and electrical conductivity are in good agreement with the actual test results. Therefore, hardness or electrical conductivity test can be used as a rapid detection method to control the quality of finished products in the actual practice.
出处
《铝加工》
CAS
2012年第4期37-40,共4页
Aluminium Fabrication
关键词
7085合金
过时效
强度
硬度
电导率
7085 alloy
over-aging
strength
hardness
electrical conductivity
