When WC content is more then 50%, spray-fusing technological property becomes worse, hardness of sprayed coating and low-stress abrasive particle wear resistance are weaken.
当w（WC）大于50%时，WC的加入使喷熔工艺性能变得极差，喷熔层的硬度和耐低应力磨粒磨损性能降低。
In the low wearing area of the loose abrasive of tiny particle, wear mechanism is mainly the micro-cuts wearing mechanism, and the surface has obvious furrow and indentation.
在小颗粒松散磨料的低磨损区，磨损机理主要是微观切削磨损机理，表面有明显的犁沟或者印痕。
In the condition of abrasive attrition, the wear loss is mainly caused by micro-cutting, particle shattered and brittle micro-peeling.
在磨粒磨损条件下，其磨损机制主要是显微切削、颗粒脱落和脆性剥落；
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