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微量镁在轴承钢中偏聚是改善碳化物的关键,通过理论分析发现轴承钢退火时能够使镁产生较大的偏聚,偏聚系数可观;检测证明适当提高钢中镁含量可改变碳化物相形态及成分;镁是在碳化物相中产生较大的弹性畸变后来达到球化碳化物的效果的。
Trace magnesium in bearing steel segregation is the key to improve the carbide, through theoretical analysis found that the bearing steel annealing can make a greater segregation of magnesium, segregation coefficient considerable; test proved that appropriate to increase the content of magnesium in the steel can change the carbide Phase morphology and composition; Magnesium is the carbide phase in the larger elastic distortion later to achieve the effect of nodular carbide.