摘要
利用电流直加热动态热压烧结工艺探讨了铁粉粒度和增强体粒度对铁基复合材料性能影响的规律。研究表明,纯铁粉烧结材料的力学性能随铁粉粒度的增大呈明显的下降趋势,而SiCp/Fe复合材料恰恰相反,其性能随铁粉粒度的增大而显著提高,随SiC增强体粒度的增大而先提高后下降,当粒度约为15μm时复合材料各性能相对较好。
The effect of initial particle size of iron and size of reinforce particle on properties of materials was studied systematically by the specimen current direct heating dynamic hot press sintering. It is found that mechanical properties of pure iron sintered decreased with the increasing initial particle size of iron, while properties of composites are contrary to those of pure iron. The properties of SiCp/Fe composites firstly increase and then decrease with particle size of SiC and propoties are better when size is 15μm.
关键词
铁基复合材料
力学性能
粒度
iron matrix composite, mechanical properties, particle size
