In-situ synthesis and superhigh modulus of network structured TiC/Ti composites based on diamond-Ti system
作者： Fengbo Sun , Lujun Huang , Rui Zhang , Shuai Wang , Shang Jiang
DOI: 10.1016/J.JALLCOM.2020.155248
关键词:
摘要: Abstract In order to enhance the elastic modulus and strength of titanium, novel continuous network structured TiC particle reinforced Ti (TiC/Ti) composites were successfully fabricated by hot pressing sintering based on diamond-Ti system. The results showed that 5 vol% fine diamond powders can be homogeneously adhered onto surface large lower energy ball milling process 250 rpm/5 h/3:1. mixed resulted in equiaxed microstructure TiC/Ti formed reinforcement around after in-situ reaction between Ti. However, high 300 rpm/10 h/10:1 must employed due excessive powders, which result with a flattened microstructure. Among composites, one introduced 10 vol% exhibited highest 184 GPa, was increased 64% compared pure (112 GPa). 7.5 vol% presented 830 MPa 1480 MPa compressive yield strengths respectively, 1.9- 3.4-fold (429 MPa). superior mainly attributed remained reinforcement-lean region Hashin-Shtrikman theory.
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