摘要
高铬铸铁在磨损工况下有优良的耐磨性,主要是由于其基体为马氏体组织,碳化物类型为6方晶系的(Fe.Cr)7C3,碳化物呈6角棒状、针状、条状分布,显著地改善了材质的力学性能。通过磨损试验证明高铬铸铁耐磨性好,成本低。与稀土高铬镍氮相比,成本降低60%,与钨铬合金相比,成本降低70%。
The reason why high Cr cast iron have excellent wear resistant properties under the wear working condition is that its matrix is martensite microstructure and carbide type is (Fe,Cr)_7C_3, the shape of which is six horny bar、acicular and strip,therefore the mechanical properties of material is improved obvious. The wear resistant property of high Cr cast iron is proved to be good and cost is low through wear test.Compared to rare earth high Cr-Ni-N, cost falls 60%; Compared to W-Cr alloy, cost falls 70%.
出处
《锅炉制造》
2004年第4期51-53,共3页
Boiler Manufacturing
