【摘要】 与基体合金相比，体积分数１５％的ＳｉＣｐ／ＬＤ２复合材料的塑性很低。拉伸断口的分析表明，这主要由基体流变的改变、颗粒的断裂、原位残余应变、颗粒形状的不规则、富铁杂质相和颗粒在局部区域的聚集等原因造成。更多还原

【Abstract】 SiC p/LD2 composite has a lower ductility compared with its unreinforced matrix alloy Analysis on its tensile fractography shows that this is caused by change of matrix flow,fracture of particle,in situ residual strain,unregularity of particle shape,iron riched impurity phase and particle cluster in some areas更多还原