Instable Plasticity and Precipitation in AZ91D Magnesium
Instable plasticity, which is normally a consequence of interactions between diffusing solute atoms and dislocations, is observed in AZ91D magnesium at room temperature. Experimental measurements of different heat treatment of AZ91D magnesium were taken to investigate different influence on PLC effect by the presence and structural state of second phase in this study. Tensile specimens were tested at room temperature at a crosshead speed of 0.6 mm/min. The results indicate that some number of large,coherent precipitates prevents serrated flow by way of trapping vacancies, but small precipitates content do not supress it.
AZ91D magnesium instable plasticity precipitation serrated flow
Shaofeng ZENG Wenzhe CHEN
College of Materials Science and Engineering Fuzhou University,Fuzhou 350002,China Fujian University of Technology,Fuzhou 350014,China
国际会议
2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)
重庆
英文
828-832
2010-09-17（万方平台首次上网日期，不代表论文的发表时间）