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最近期间,一些显微组织大部是马氏体的低碳铬镍钢,无论是在铸造方面,或是在塑性变形方面,都得到相当大的发展。这类钢的现有牌号,是由四十年前原来主要用于铸造水轮机零件的、含铬13％和含镍最多为1％的钢长期逐步发展而成的。从当时的角度来看,尽管这种钢有非常良好的抗气蚀和耐腐蚀的性能,然而,由于其可焊性不够好,水轮机的零件一且损坏,不能直接在现场修理,而不得不重新制造。
Recently, some low-carbon chromium-nickel steels, which are mostly martensitic microstructures, have enjoyed considerable development both in casting and in plastic deformation. The current grades for these steels have been developed over a long period of time from the steel of 13% chromium and 1% nickel, originally used mainly for the manufacture of turbine parts 40 years ago. From then on, although this steel has very good resistance to cavitation and corrosion, however, due to its poor solderability, the turbine parts are damaged once and can not be repaired directly on the site and have to be repaired Remanufactured.