【摘要】 研究了一系列铬含量不同而锰含量都为15％的Fe－Mn－Al－Cr钢在几种典型酸、碱、盐水溶液中的耐腐蚀性能，并与锰含量为26％的Fe－Mn－Al－Cr钢和1Cr18Ni9Ti相比较，结果表明新型的Fe－Mn－Al－Cr钢在水溶液中的耐腐蚀性能比原来的Fe－Mn－Al－Cr钢的都要好，在有些溶液中的耐蚀性能比1Cr18Ni9Ti还要好．这种新型不锈钢的价格非常低，有较高的实用价值．研究还表明，对该用种而言，铬含量升高并不意味着耐蚀性能提高，铬含量增至某一值对钢的耐蚀性能反而降低，此时组织中山现铁素体．用XPS对Fe－Mn－Al－Cr钢在0．5mol／LH2SO4中的钝化膜进行了研究．更多还原

【Abstract】 A series of new type Fe－Mn－Al－Cr stainless steels， which were cheaper than the steel containing 26% Mn， were designed. Their anodic polarization curves in 0.5mol/L H2SO4， lmol/L HNO3， 1mol/L Na2SO4 and 2mol/L NaOH showed that these new materials had better corrosion resistance than the former 26% Mn steel. The increase in chromium content did not monotonously improve their corrosion resistance. When the chromium content reached to a certain value ferrite appeared and the passiyity of alloy decreased. XPS was applied to study the structure of passive film formed in 0.5mol/L H2SO4. From the tests we wold conclude that the outer layer of the film was mainly composed of metal oxides and hydrates and its inner layer was metal oxides.更多还原