单级时效对6008铝合金力学及压缩性能研究  

Study on Mechanical and Compressive Properties of 6008 Aluminum Alloy by Single Aging

作　　者：严卫才 王洪卓 董刘颖 李海洋 邵倩男 Yan Weicai;Wang Hongzhuo;Dong Liuying;Li Haiyang;Shao Qiannan(Liaoning Zhongwang Group Co., Ltd., Liaoyang 111003, China)

机构地区：[1]辽宁忠旺集团有限公司,辽宁辽阳111003

出　　处：《有色金属加工》2021年第4期22-25,共4页Nonferrous Metals Processing

基　　金：辽宁省‘兴辽英才计划’项目资助(XLYC1802054)。

摘　　要：文章主要以6008铝合金为研究对象,通过室温拉伸和压缩试验研究该材料经不同时效制度下的力学性能和吸能性能。研究表明,随着时效时间的延长,6008铝合金时效7h达到峰值强度,析出相最多,延伸率最低;在0.5h~2.5h内屈强比线性增加,2.5h后屈强比趋于平缓;压缩变形方式发生变化;时效2.5h后,加载曲线呈周期变化,变形褶皱均匀,材料利用率高;时效5h后弯曲压缩裂纹较严重,时效时间延长,压缩破坏较大;在未破坏褶皱的前提下,随着时效时间的增加,吸能性能逐渐增加。In this paper,the mechanical properties and energy absorption properties of 6008 aluminum alloy under different aging conditions are studied through tensile and compression tests at room temperature.The results show that with the prolongation of aging time,the peak strength of 6008 aluminum alloy reaches 7h,the precipitates are the most and the elongation is the lowest.The strength ratio increases linearly within 0.5h-2.5h,and tends to be flat after 2.5h and the compression deformation mode changes.After aging for 2.5h,the loading curve shows periodic change,the deformation folds are uniform,and the material utilization rate is high.After aging for 5h,the bending compression crack is more serious,the aging time is longer,and the compression failure is larger.With the increase of aging time,the energy absorption capacity increases gradually on the premise that the folds are not destroyed.

关 键 词：6008铝合金 时效 力学性能 吸能性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程]