研究了低镍奥氏体铸铁的显微组织及其耐腐蚀、耐磨性。结果表明:低镍奥氏体组织主要由奥氏体、石墨和少量碳化物组成。低镍奥氏体铸铁的抗拉强度和布氏硬度均高于高镍铸铁,同时,低镍奥氏体铸铁的耐腐蚀和耐磨损性也相当或接近于高镍铸铁。 The microstructure and corrosion resistance and wear resistance of low Ni austenitic cast iron were studied. The results show that the low-nickel austenite consists mainly of austenite, graphite and a small amount of carbides. The tensile strength and Brinell hardness of low-nickel austenitic cast iron are both higher than that of high-nickel cast iron, while the corrosion resistance and wear resistance of low-nickel austenitic cast iron are comparable or close to that of high-nickel cast iron.