研究了稀土变质及热处理对低铬耐磨铸铁热疲劳裂纹形成的影响。
The effect of re modification and heat treatment on formation of thermal fatigue crack in low chromium wear-resistant cast iron was investigated.
采用稀土硅铁、低碳铬铁和复合变质剂对中铬铸铁进行变质处理后，组织细化、性能提高；
The experiment results showed the structure was refined and the properties were enhanced after adding modificator, such as rare-earth ferrosilicon.
采用稀土硅铁、低碳铬铁和复合变质剂对中铬铸铁进行变质处理后，组织细化、性能提高；
The experiment results showed the structure was refined and the properties were enhanced after adding modificator, such as rare-earth ferrosilicon.
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