【摘 要】
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The interracial reaction and titanium matrix microstructure in continuous SiC fiber-reinforced titanium matrix composite were investigated.By comparison of two
【机 构】
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Laboratory of Advanced Materials(MOE), School of Materials Science and Engineering, Tsinghua Univers
论文部分内容阅读
The interracial reaction and titanium matrix microstructure in continuous SiC fiber-reinforced titanium matrix composite were investigated.By comparison of two samples actuated by 800 ℃ (in α + β dual-phase field)and 920 ℃ (in β single-phase field) consolidation,it can be concluded that tri-layer interfacial reaction regions consisting of fine TiCx/transition TiCx/coarse TiCx are formed in both two samples.In addition,the total thickness of reaction layer for composites prepared at 920 ℃ is thicker than that consolidated at 800 ℃,while fine TiCx layer of 920 ℃ sample is thinner than that of 800 ℃ sample,which may be ascribed to the quick growth of PVD-TiI7 grain manufactured at 920 ℃.In addition,lower interfacial shear strength is obtained in 920 ℃ sample,which can be ascribed to the formation of too thick brittle TiC layer.The research in the work is expected to motivate further exploration for interface adjustment of titanium matrix composites.
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