Effect of ECAP on Mechanical Properties of an Al-Cu-Mg-Ag-Sc Alloy

摘要：

Effect of thermomechanical processing including equal-channel angular pressing (ECAP), solution treatment, water quenching and artificial aging on microstructure and mechanical properties of an Al-Cui-Mg-Ag-Sc alloy was examined. It was shown that ECAP provides extensive grain refinement. However, extensive grain growth occurs under subsequent solution treatment resulting in coarse grained structure. It was showed that ECAP following water quenching provides a minor increase in strength of the alloy. No effect of ECAP on the precipitation sequence under ageing was found. Q-phase precipitating under ageing condition is in dominant. As a result, the alloy exhibits high yield stress up to a temperature of 175℃. Conditions for attaining increased strength in the alloy by ECAP processing are discussed.

作者: Marat Gazizov Viktor Telesov Valerij Zakharov Rustam Kaibyshev

作者单位: Belgorod State University,Belgorod 308034,Russia AII-Russian Institute of Light alloys,Moscow 121596,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: 967-972

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）