摘要
作者采用粉末冶金方法，通过Ｘ－ｒａｙ衍射谱、ＳＥＭ观察等大量实验，研究了钢基－Ａｌ２Ｏ３金属陶瓷复合材料的烧结机理。用正交试验方法对烧结工艺参数和复合材料的组成进行了优化。试样经烧结并淬火处理，其硬度达ＨＲＣ６０～６５，相对密度Ｄ为９５％左右，抗拉强度σｂ为４３０～４６０ＭＰａ，延伸率δ为０．３５％～０．８５％，耐磨性能比６０钢（经淬火并低温回火）高６．６倍。
The method of powder metallurgy is applied to Fe-Al2O3 cermet composites by X-ray diffraction spectrum, SEM observation, etc. The optimum parameters of sintering technology and the composition are determined by orthogonal tests. After specimen being sintered and quenched, its hardness is HRC60～65, D: about 95%, σb: 430～460MPa, δ: 0. 35～0. 85 %, wear resistance is 6. 6 times more than 60 steel which is quenched and tempered in low temperature.
