铁基轻质材料的制备及失效分析  

Preparation and Failure Analysis of Iron Based Lightweight Materials

作　　者：仝斌斌 吕光哲[1] 李暖富 于永伟 王嘉棋 TONG Binbin;LV Guangzhe;LI Nuanfu;YU Yongwe;WANG Jiaqi(School of Metallurgy and Materials Engineering,Liaoning Institute of Science and Technology,Benxi Liaoning 117004,China)

机构地区：[1]辽宁科技学院冶金与材料工程学院,辽宁本溪117004

出　　处：《辽宁科技学院学报》2024年第2期21-23,共3页Journal of Liaoning Institute of Science and Technology

基　　金：2023年辽宁科技学院大学生创新创业训练计划项目(202311430063);辽宁省教育厅基本科研项目(2023J0918).

摘　　要：采用粉末冶金法制备了SiO_(2)/Fe-Ni复合材料,完成了硬度、密度和显微结构等性能检测。结果表明,所制备的复合材料具有较高的硬度和强度、较低的表观密度,基本达到了轻质高强的性能要求。基体对增强颗粒的“支撑效应”和颗粒对基体的“增强效应”比较明显,界面附近少量气孔和Ⅰ型界面机械互锁力较低是材料发生压溃的主要原因。SiO_(2)/Fe-Ni composites were prepared by powder metallurgy method.The hardness,density and microstructure of the composites were tested.The results showed that the composites have high hardness and strength,low apparent density,and can thus basically meet the requirements of light weight and high strength.Also,the"support effect"of matrix on the reinforced particles and the"reinforcement effect"of particles on the matrix are obvious.The small amount of pores near the interface and the low mechanical interlocking force of the Ⅰ-type interface are the main reasons for the collapse of the material.

关 键 词：铁基复合材料 断口 失效分析 

分 类 号：TB331[一般工业技术—材料科学与工程] TG148[金属学及工艺—金属材料]