摘要
采用热处理、硬度测试、显微组织观察等方法,分析不同的时效温度、固溶时间、时效时间对超高强铝合金硬度的影响,并利用正交方差分析对最佳的热处理工艺参数进行优选.结果表明:在固溶温度为460℃,固溶时间为400、60、200 min,时效温度为130、150、170℃,时效时间为10、15、20 h的条件下,各参数对硬度影响程度的顺序为:时效温度>固溶时间>时效时间.最佳的热处理方案为:时效时间10 h,时效温度150℃,固溶时间200 min.
Effects of different aging temperature,solution time and aging time upon ultra high strength aluminum alloy were analyzed by means of heat treatment,hardness,microstructural observation,and suitable process parameter of heat treatment had been optimized by orthogonal test and variance analysis.The results show that under the condition of solution temperature at 460 ℃,solution time for 400,60,200 min,aging temperature at 130,150,170 ℃,aging time for 10,15,20 h,the influencing sequence of the process parameter on hardness is： aging temperaturesolution timeaging time.The suitable heat treatment program is aging time for 10 h,aging temperature at 150 ℃,and solution time for 200 min.
出处
《重庆文理学院学报（自然科学版）》
2012年第5期20-23,共4页
Journal of Chongqing University of Arts and Sciences
关键词
超高强铝合金
热处理
正交实验
ultra high strength aluminum alloy
solution treatment
orthogonal test
