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Ferritic-martensitic stainless steel alloy with deformation-induced martensitic phase
Ferritic-martensitic stainless steel alloy with deformation-induced martensitic phase
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机译：变形诱发马氏体相的铁素体-马氏体不锈钢合金
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摘要
The present invention relates to a ferritic-martensitic Mn-Cr-Ni-N-steel in which the austenite phase is transformed into martensite at cold deformation so that the steel obtains high strength with maintained good ductility. The distinguishing feature is an alloy analysis comprising max 0.1 % C, 0.1 - 1.5 % Si, max 5.0 % Mn, 17 - 22 % Cr, 2.0 - 5.0 % Ni, max 2.0 % Mo, max 0.2 % N, balance Fe and normal amounts of impurities whereby the ferrite content is 5 - 45 % and austenite stability, Sm, expressed as Sm = 462 (% C + % N) + 9.2 % Si + 8.1 % Mn + 13.7 % Cr + 34 % Ni shall fulfill the condition 475 Sm 600.
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机译：铁素体-马氏体Mn-Cr-Ni-N-钢本发明涉及一种铁素体-马氏体Mn-Cr-Ni-N-钢，其中奥氏体相在冷变形时转变成马氏体，从而在保持良好延展性的同时获得高强度。显着特征是合金分析，包括最高0.1％的C，0.1％-1.5％的Si，最高5.0％的Mn，17-22％的Cr，2.0％-5.0％的Ni，最高2.0％的Mo，最高0.2％的N，其余为Fe和普通铁素体含量为5-45％的奥氏体稳定性S m 的杂质含量，表示为S m = 462（％C +％N）+ 9.2％Si + 8.1％Mn + 13.7％Cr + 34％Ni应满足475 m <600的条件。
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