摘要
在里面原文如此(f)/Ti-6AI-4V composites,到纤维的矩阵结束的微观结构与纤维更少材料的不同。微观结构观察证明好谷物的层被定位邻近纤维,和更多脱臼和差错在这个区域被发现。更高的再结晶成核率由于波形原文如此形成了纤维和在从温度引起了矩阵的微结构变化的制造冷却期间导致的热剩余应力。坚硬测量显示在纤维邻居的矩阵被加强,并且加强的效果与距离减少了离开纤维。
In SiC(f)/Ti-6Al-4V composites, the microstructure of the matrix close to the fiber was different from that of the fiber-less material. Microstructure observations show that a layer of fine grains was located adjacent to the fiber, and more dislocations and faults were found in this region. Higher recrystallization nucleation rate due to the undeformed SiC fiber and thermal residual stress induced during cooling from the fabrication temperature caused the microstructural changes of the matrix. Hardness measurement indicates that the matrix in the fiber neighborhood was strengthened, and the strengthening effect decreased with distance away from the fiber.
关键词
钛铝钒合金
显微结构
碳化硅光纤
热残余应力
Matrix strengthening
Ti-6Al-4V powder
SiC fiber
Metal-matrix composites