Effect of composition and sintering temperature on mechanical properties of ZrO_2 particulate-reinforced titanium-matrix composite  

成分和烧结温度对ZrO_2颗粒增强型钛基复合材料力学性能的影响(英文)

作　　者：韩超[1] 李云苍[2] 梁晓光[1] 程莲萍[1] 赵娜[1] 朱心昆[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,昆明650093 [2]迪肯大学前沿材料研究所,澳大利亚

出　　处：《Transactions of Nonferrous Metals Society of China》2012年第8期1855-1859,共5页中国有色金属学报（英文版）

摘　　要：The titanium-based composites were synthesized by powder metallurgy method. The effects of composition and sintering temperature on the microstructure and properties of the titanium-based composites were investigated by X-ray diffraction, optical microscopy, scanning electron microscopy and mechanical properties tests. The results demonstrate that adding ZrO2 particles can improve the mechanical properties of powder metallurgy （P/M） titanium-based composites. The Ti composite with 4% （mole fraction） ZrO2 sintered at 1100 °C for 4 h shows an appropriate mechanical property with a relative density of 93.9%, a compressive strength of 1380 MPa （570 MPa higher than pure Ti） and good plasticity （an ultimate strain above 24%）.钛利用粉末冶金方法制备钛基复合材料。采用X射线衍射仪、金相显微镜、扫描电镜及力学性能测试仪研究材料成分和烧结温度对显微结构及性能的影响。结果表明:加入ZrO2颗粒能够提高粉末冶金钛基复合材料的力学性能。加入4%ZrO2,在1100°C下烧结4h,得到的钛基复合材料的相对密度为93.9%,屈服强度能达到1380MPa(比纯钛高570MPa),并且具有良好的塑性(极限应变超过24%)。

关 键 词：zirconium dioxide titanium-matrix composites compression strength mechanical property 

分 类 号：TB332[一般工业技术—材料科学与工程]