摘要
采用原位复合工艺制备了自生 Ti CP/ L D7复合材料坯料 ,经热挤压成 12的棒材 ,并进行了 T6热处理。通过SEM观察和分析了热挤压 Ti CP/ L D7复合材料的显微组织和断口形貌。测试了材料的σb,σs,E和δ。结果表明 :Ti C颗粒含量为 2 0 wt%的复合材料的 σb,σs,E分别为 417MPa,373MPa,92 GPa,δ为 4.5 % 。
The in situ TiC P/LD7 composites were prepared by reaction synthesize technique, and it was the stick of φ12 mm by thermal extrusion The ultimate tensile strength (σ b,σ s), elastic modules(E) and elongation(δ) of the in situ TiC P/LD7 composites was tested at the heat treatment condition of T6 The microstructure of the in situ extruded TiC P/LD7 composites was observed by the use of SEM, and the fracture morphology was also observed The results show that the ultimate tensile strength and the elastic modules of the in situ TiC P/LD7 composite with 20wt%TiC P are 417MPa,373MPa and 92GPa respectively, and the elongation is up to 4 5%, the fracture is ductile
出处
《材料工程》
EI
CAS
CSCD
北大核心
2001年第3期28-30,共3页
Journal of Materials Engineering
