蠕变时效后Al-Mg-Si-Cu合金的阻尼性能  

Damping properties of Al-Mg-Si-Cu alloy after creep aging

作　　者：陶德福 孙有平[1] 王文熙[1] 何江美[1] 李旺珍[1] Tao Defu;Sun Youping;Wang Wenxi;He Jiangmei;Li Wangzhen(College of Mechanical Engineering,Guangxi University of Science and Technology,Liuzhou Guangxi 545006 ,China)

机构地区：[1]广西科技大学机械工程学院,广西柳州545006

出　　处：《金属热处理》2019年第2期73-77,共5页Heat Treatment of Metals

基　　金：国家自然科学基金(51561004);广西自然科学基金(2016GXNSFDA380008);柳州市科学研究与技术开发计划项目(2017BD20301);广西科技大学研究生教育创新计划项目(GKYC201603)

摘　　要：采用RDL50电子蠕变试验机和MFP-1000阻尼测试机,对蠕变时效后Al-Mg-Si-Cu合金进行阻尼测试,研究了不同工艺参数对蠕变时效后Al-Mg-Si-Cu合金阻尼性能的影响;同时也研究了人工时效后Al-Mg-Si-Cu合金的阻尼性能。研究结果表明:人工时效改善了Al-Mg-Si-Cu合金的阻尼性能;时效温度对Al-Mg-Si-Cu合金蠕变时效后的阻尼性能的影响最大; Al-Mg-Si-Cu合金的阻尼值在时效温度170℃,时效时间3 h,应力200 MPa下达到最大,为0. 181。The damping test of Al-Mg-Si-Cu alloy after creep aging was carried out by using RDL50 electronic creep tester and MFP-1000 damping tester. The effect of damping properties of the Al-Mg-Si-Cu alloy was studied after creep aging with different process parameters and artificial aging. The results show that the artificial aging can improve damping properties of the Al-Mg-Si-Cu alloy. The process parameters have a great influence on the damping performance of the Al-Mg-Si-Cu alloy after creep aging forming. Damping maximum values of the AlMg-Si-Cu alloy reached 0. 181 when aging temperature is 170 ℃,aging time is 3 h and stress is 200 MPa.

关 键 词：AL-MG-SI-CU合金 蠕变时效 工艺参数 阻尼性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程]