球磨时间对FeS/铁基合金轴承材料组织与性能的影响

Effect of Ball Milling Times on Structure and Properties of FeS-Iron-Based Bearing Alloy Materials

以铁基粉末和FeS粉末为原料,通过机械合金化和粉末冶金技术制备FeS/铁基合金轴承材料,通过对混合粉末和烧结后试样的微观组织以及性能检测,分析不同球磨时间下FeS/铁基合金轴承材料组织和性能的变化。结果表明:机械合金化使FeS与铁基体的结合更稳定,随着球磨时间的增加,FeS粉末在铁基粉末中的分布更均匀,烧结后试样的密度和硬度呈先增加后减小的趋势,压溃强度逐渐降低;球磨时间为9 h时,既能保证FeS粉末在铁基粉末中的均匀分布,又能保证烧结后试样具有良好的力学性能。

Using iron-based powder and FeS powder as raw materials,FeS-iron-based bearing alloy materials are prepared by mechanical alloying and powder metallurgy technology.Through microstructure inspection and property analysis of mixed powder and sintered samples,the variation of structure and properties of FeS-iron-based bearing alloy materials under different ball milling times is explored.The results show that the mechanical alloying is conducive to more stable combination of FeS and iron matrix,with the increase of ball milling time,the distribution of FeS in iron-based powder becomes more uniform,the density and hardness of samples after sintering increase first and then decrease,and the crushing strength decreases gradually;when the ball milling time is 9 h,the uniform distribution of FeS powder in iron-based powder can be guaranteed,and the sintered samples have good mechanical properties.