铁基堆焊合金表面涂层耐磨性的研究进展

Research progress on wear resistance ofsurface coating on iron-based surfacing alloy

由磨损造成的材料表面损失是农业、矿山、土方设备等机械零件面临的主要问题。通过堆焊技术在基体上堆焊具有优异耐磨性能的堆焊合金,可以显著延长或提高机械零件的使用寿命。铁基堆焊合金相比于镍基和钴基具有成分变化范围宽,性能调控容易,价格低廉等优点,因而受到广大学者的关注。对铁基堆焊合金表面涂层耐磨性的研究进展进行了综合评价,着重从成分设计、化合物掺杂以及后处理工艺3个方面对铁基堆焊合金耐磨性能强化途径进行了概述,并对其发展方向提出了一些看法,希望对今后关于堆焊合金耐磨性能工作的开展具有一定的指导意义。

The material surface loss caused by wear is the main problem faced by mechanical parts such as agriculture,mining and earthwork equipment.Surfacing alloy with excellent wear resistance on the substrate by surfacing technology can significantly prolong or improve the service life of mechanical parts.Compared with nickel-based and cobalt-based surfacing alloys,iron-based surfacing alloys have the advantages of wide composition range,easy performance regulation and low price,so they have attracted the attention of scholars.In this paper,the research progress of wear resistance of iron-based surfacing alloy surface coating is comprehensively evaluated.The strengthening methods of wear resistance of iron-based surfacing alloy are summarized from three aspects:composition design,compound doping and post-treatment process.Some views on its development direction are put forward,hoping to have certain guiding significance for the future development of wear resistance of surfacing alloy.