马氏体镍钢虽是一种韧性极好的超强度钢,但易受六氟化铀气体的腐蚀。对目前实用的马氏体18镍钢的组成加以改变,并不能显著地改善其抗腐蚀性能。有人曾提出用加镀层的办法来改善其抗腐蚀性能。然而,实际上难以做到没有针孔的覆盖层,而这些针孔首先要受到六氟化铀气体的腐蚀,从而使覆盖层和基体分离。因此,不推荐这种办法。有人发现,马氏体镍钢在空气中加热到500℃形成的氧化膜,具有极好的抗腐蚀性 Although martensitic nickel steel is an extremely tough super tough steel, it is susceptible to the corrosion of uranium hexafluoride gas. Changes in the composition of the currently available martensitic 18-nickel steels do not significantly improve their corrosion resistance. It has been proposed to add coatings to improve its corrosion resistance. In practice, however, it is difficult to achieve a coating without pinholes, which are first subject to corrosion by uranium hexafluoride gas to separate the coating from the substrate. Therefore, this approach is not recommended. It was found that the martensite nickel steel in the air heated to 500 ℃ formed oxide film has excellent corrosion resistance