摘要
采用自行设计的热模拟试样,研究变形条件对MB15镁合金力学性能及组织影响的规律,并对热压缩后的MB15镁合金试样超塑性性能进行了试验研究。研究结果表明,对于MB15镁合金,当变形温度为300℃、应变速率为5.0×10^-3s^-1、变形程度为80%时,MB15镁合金具有良好的综合力学性能;当变形温度为340℃、应变速率为5.56×10^-3s^-1时,延伸率可达到307.9%;当应变速率在5.56×10^-4s^-1-1.0×10^-2s^-1范围时,延伸率≥251.2%。
It was found that deformation conditions of the samples affected mechanical properties and microstructure of MB15 alloy,by using self-designed samples of thermal simulation.After MB15 magnesium alloy＇s thermocompression deformation,superplastic its was tested.The results show that MB15 alloy has good comprehensive mechanical properties under the conditions of strain rate of 5.0×10^-3s^-1 at 300℃.The maximum elongation has reached 307.9% with the strain rate of 5.56×10^-3s^-1 at 340℃,and 251.2% with the range of 5.56×10^-4s^-1 to 1.0×10^-2s^-1.
出处
《塑性工程学报》
CAS
CSCD
北大核心
2010年第6期62-66,共5页
Journal of Plasticity Engineering
基金
国家973计划资助项目(2007CB613703)
关键词
镁合金
变形条件
力学性能
超塑性
magnesium alloy
deformation conditions
mechanical property
superplasticity
