This paper studied the effect of several factors from the material aspect, including running-in process, hardness and different structures on the sliding wear resistance of steel 4340.
本文从材料方面研究了几个因素。包括跑合过程、钢的硬度及不同组织结构，对4340钢耐磨性的影响。
The carbides in the matrix prevent dislocation from moving, and pin effect of the carbides in the grain boundary keep grain boundary from sliding, and creep resistance of steel is improved.
蠕变期间，晶内碳化物阻碍位错运动，晶界碳化物“钉扎”晶界，阻碍晶界滑动，由此提高钢的蠕变抗力。
The results indicate that the sliding resistance is greatly reduced by the lubrication effect of a thin film plaster on the soil surface.
结果表明：田面有泥浆薄层时船体滑行阻力将大大降低。
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