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本文对奥氏体中锰钢、钒强化含胞状碳硼化物奥氏体中锰钢和钛强化含胞状碳硼化物奥氏体中锰钢在高应力和低应力条件下相对耐磨性进行了测定。结果表明,在低应力叶片式磨料磨损条件下,两种含硼中锰钢的相对耐磨性显著高于奥氏体中锰钢;而在高应力的冲击式磨料磨损条件下,前者的相对耐磨性则明显低于后者。结果说明,引起三种钢耐磨顺序的变化的主要原因是低应力条件下的磨损机制与高应力条件下的磨损机制不同。低应力下以表面疲劳剥落为主,高应力下以犁削,脆断为主。本文的试验结果也说明在低应力条件下以钛代钒来强化胞状硼化物,可获得更高的耐磨性和更大的经济效益。
In this paper, the relative wear resistance of austenitic manganese steel, vanadium-enriched martensite-containing martensite in austenite and austenite-containing austenitic manganese steel in titanium under high stress and low stress Determination. The results show that the relative wear resistance of the two boron-containing manganese steels is significantly higher than that of the austenite medium manganese steels under low-stress blade-type abrasive wear conditions. Under high-stress impact abrasive wear conditions, the relative Wear resistance is significantly lower than the latter. The results show that the main cause of the change in wear resistance of the three steels is that the wear mechanism under low stress conditions is different from the wear mechanism under high stress conditions. Under low stress, surface fatigue is the main factor of peeling. Under high stress, plow cutting and brittle fracture are the main factors. The experimental results in this paper also show that using titanium vanadium to strengthen the cellular borides under low stress conditions can achieve higher wear resistance and greater economic benefits.