摘要
研究了微量纳米SiC粉体对高锰钢组织、表面加工硬化性能和耐磨性能的影响。结果表明,添加0.07%纳米SiC粉体后,高锰钢晶粒细化了约60%;纳米SiC粉体使高锰钢喷丸强化后的滑移带明显增多,喷丸表面硬度得到提高,并且随着加工硬化时间的延长,添加SiC粉体试样比未添加SiC粉体试样的加工硬化效果进一步增强,从而提高了加工硬化能力;添加0.07%纳米SiC粉体后,高锰钢磨损表面的沟槽变浅,剥落的凹坑减少,磨损质量损失降低了19.2%,高锰钢的耐磨性能得到显著提高。
The effect of minute addition of nano-SiC powder on the microstructure, cold hardening and wear resistance of high manganese steel was investigated. The results show that the addition of 0.7% nano-SiC powder can obviously refine the grains of the steel up to 60%. The-nano-SiC powder significant increases the slip bands and improves the surface hardnss after shot peening. As prolonging shot peening time, the cold hardening of the samples with nano-SiC powder improves. The nano-SiC powders enhances the cold hardening capacity. With the addition of 0.7% nano-SiC powder, the grooves became shallower and the pits became fewer after wear testing, the wear mass loss of high manganese steel is reduced by 19.2%. The nano-SiC powders improves the wear resistance of high-manganese steel.
出处
《铸造技术》
CAS
北大核心
2012年第6期655-657,共3页
Foundry Technology
基金
教育部博士点基金资助项目(20070150002)
关键词
高锰钢
表面加工硬化
耐磨性能
high manganese steel
mechanical properties
wear resistance
