Comparison of High-Temperature Compressive Deformation Characteristics of Differently Processed LY12 Aluminum Alloys
The individual or joint effects of annealing and equal channel angular pressing (ECAP) treatments on the high-temperature compressive deformation and damage behavior of cast LY12 Al alloys were studied. The compressive deformation behavior and surface deformation and damage characteristics of differently treated LY12 Al alloy samples were examined at temperatures ranging from 25℃ to 400℃. It is found that the LY12 Al alloy exhibits different compressive mechanical behavior depending on different treatments, and the compressive deformation and damage characteristics of LY12 Al alloys with different microstructural states are closely related with the testing temperature. As compared to other samples (e.g. as-cast, annealed, as-cast+2ECAPed), the sample annealed at 450℃ for 3h followed by ECAPed for 2 passages (i.e. annealed+2ECAPed) shows a better high-temperature deformation stability.
Yao Wang Qing-Wei Jiang Ying Wu Xiao-Wu Li
Institute of Materials Physics and Chemistry,College of Sciences,Northeastern University,P.O.Box 104 School of Materials Science and Engineering,Shanghai Institute of Technology,No.120,Cao Bao Road,Sha Institute of Materials Physics and Chemistry,College of Sciences,Northeastern University,P.O.Box 104
国际会议
5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)
南京
英文
845-849
2011-03-01（万方平台首次上网日期，不代表论文的发表时间）