摘要
对自生ＴｉＣｐ／２０２４复合材料采用Ｔ４和Ｔ６两种热处理制度，测试了该材料的σｂ、σｓ、Ｅ和δ。通过ＳＥＭ观察和分析了熔体挤压ＴｉＣｐ／２０２４复合材料的显微组织和断口形貌。结果表明：在Ｔ６状态下ＴｉＣｐ含量为１５ｗｔ％的复合材料的σｂ、σｓ、Ｅ分别达到５４０ＭＰａ、４３０ＭＰａ、９２ＧＰａ，δ为３．２％，断裂形式为韧性断裂，由此可以认为自生ＴｉＣｐ／２０２４复合材料具有优良的综合力学性能。
The ultimate tensile strength(σ b、
σ s ), elastic modules(E) and elongation (δ) of the in situ TiC p/2024 composites was
tested at the heat treatment condition of T4 and T6 The microstructure of the in situ extruded
TiC p/2024 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
composite with 15wt%TiC p are 540MPa,430MPa and 92GPa respectively, and the elongation is
up to 3 2%.The fracture is ductile All of these indicte that the composites are of good
mechanical properties。
出处
《材料工程》
EI
CAS
CSCD
北大核心
1999年第3期15-18,共4页
Journal of Materials Engineering
基金
先进复合材料国防科技重点实验室基金
关键词
熔体挤压
复合材料
组织
力学性能
碳化钛
liquid extrusion TiC p composite microstructure
mechanical properties
