Structure Evolution and Deformation Mechanisms in Ultrafine-Grained Aluminum under Tension at Room Temperature

摘要：

Deformation mechanisms occurring by tension of ultrafine-grained aluminum processed by equalchannel angular pressing at room temperature are investigated using comparative study of the microstructure before and after tensile testing as well as deformation relief on the pre-polished surface of the sample tested. Deformation behavior and structure evolution during tension suggest development of grain boundary sliding in addition to intragrain dislocation slip. Contribution grain boundary sliding to the overall deformation calculated using the magnitude of shift of grains relative to each other is found to be -40%.

作者: Konstantin V.lvanov Evgeny V.Naidenkin

作者单位: Institute of Strength Physics and Materials Science,SB RAS,634021,pr.Academichesky 2/4,Tomsk,Russia

会议类型: 国际会议

会议名称: 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)

会议地点: 南京

会议语种:英文

页码: 915-920

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）