摘要
采用gleeble 3500热模拟机进行单向热压缩实验,研究了Mg2B2O5w/AZ31镁基复合材料(体积分数5%)在变形过程中温度、应变速率对织构变化规律的影响。材料变形温度范围在250～400℃之间,应变速率为0.001～0.1 s-1,最大压缩变形量为40%。采用X衍射仪对变形后的晶粒取向进行分析,测定和计算材料沿厚度方向的织构组分。结果表明:基面(0002)滑移为材料主要的塑性变形方式,随着应变速率、变形温度的提高,锥面(1012)开始启动,取向密度增大。
The single-direction hot deformation behaviors of Mg2B2O5w/AZ31 magnesium matrix alloy（volume fraction 5%） was compressed by gleeble 3500 thermal simulator system.The tests was investigated of the variation of texture at various temperatures and strain rates.The materials was deformed when temperature 250 ℃~400 ℃,strain rate was 0.001 s-1~0.1 s-1,and the maximum compressed deformation was 40%.The analysis of grain orientation after deformation and measurement and calculation of material texture along the thickness direction was analyzed by X diffractometer.The results indicated that basic plane（0002） slip was the major plastic deformation mode and the conical plane（1012） started and its orientation density increased with the deformation temperatures and strain rates increased.
出处
《广州化工》
CAS
2011年第21期71-74,共4页
GuangZhou Chemical Industry
关键词
复合材料
压缩
晶粒取向
织构
composite material
compress
grain orientation
texture
