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耐磨堆焊已经成为了零件表面修复,延长设备使用寿命的重要方法之一。堆焊层金属的硬度和在不同工作环境下的磨损量是衡量其耐磨性的重要指标,而耐磨料磨损的性能和耐冲击磨损的性能往往不能兼得。研究Fe-Cr-Ti-C系药芯堆焊焊丝,通过对其堆焊层硬度、耐磨料磨损和耐冲击磨料磨损性能的研究,发现(Fe,Cr)7C3、Cr23C6等硬质相的存在数量和形式,与其在马氏体、奥氏体基体中的生长方式对堆焊层的硬度、耐磨性有显著的影响,探讨了加工硬化和硬质相的不同生长方式对材料在有冲击和无冲击条件下磨损量的变化规律。
Wear-resistant surfacing has become an important part of the surface repair, extending the service life of one of the ways. Hardness of overlay metal and wear under different working conditions is an important index to measure its wear resistance, and the performance of wear-resistant abrasion and wear-resistant performance often can not have both. The study of Fe-Cr-Ti-C flux-cored welding wire, through the study of its hardfacing, abrasion resistance and wear resistance of impact-resistant abrasive, found that the (Fe, Cr) 7C3, Cr23C6 and other hard phases The number and form of existence and the growth mode in the martensite and austenite matrix have a significant impact on the hardness and wear resistance of the surfacing layer. The effects of work hardening and different growth modes of hard phase on the properties of Variation of wear amount under impact and impactless conditions.