金属基耐磨铸造表面复合材料的现状及其今后研究工作的主攻方向

The Present Situations of Metal Matrix Wear Resistant Cast Surface Composites and lts Further Research Directions

为了推动国内在金属基耐磨铸造表面复合材料领域的基础理论研究和应用的发展，对这类复合材料的制造工艺、耐磨性能和影响其质量的有关因素进行了综合介绍与评述。目前，金属基耐磨铸造表面复合材料的发展方兴未艾，尽管其制造工艺的研究，特别是对于它的摩擦学性能和影响其质量的因素之研究报道都还不多，然而毕竟已经取得了不少成果，这为它的进一步发展奠定了基础。通过对几个方面已经成功应用和可望投入应用之实例的简明阐述，展现了金属基耐磨铸造表面复合材料良好的实用前景，并就其今后的研究工作提出了几个值得重视的主攻方向。应当特别还强调指出的是，在对这类复合材料深入进行基础理论研究的同时，还必须大力开展其在工程上的应用研究，以不断拓展它的适用范围。

The metal matrix wear-resistant cast surface composites are a kinds of new materialswhich are fabricated by compounding the ceramic particles or fibers,which have the high hardnessand the good antiwear property, onto the surface layers of the metals so as to use under the variouswear working conditions. The fabricating techniques,properties and affecting factors werecomprehensive introduced and reviewed in this paper.It is indicated that though the study onfabricating techniques of the composites,especially the publications about the investigation of thefriction properties and affecting factors are still very few,but some achievements have beenobtained.This provides a better basis for their further development. For the latter rescarch works ofthis kinds of materials,a uthors considered that the main directions of attack include the studies onthe technique and interface theories,the studies on the solidification processing,the study on thewear law and its mechanisms under the various working conditions and the application inengineering.