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讨论合金成分与层错能的关系，结合合金成分对合金组织影响的组织状态图（Ｓｃｈａｅｆｌｅｒ图），提出了较为合理的合金成分设计。加入铬、镍合金元素的同时，降低锰含量可以保证合金具有较低的合金层错能。硅含量为６％时，其层错能最低。如无特殊要求，铬含量应控制在１０％以内。镍含量为Ｃｒ％／１．７，以避免σ相的析出。Ｍｎ含量则以保证Ｍｓ点比室温略高来确定。合金的成分当量应满足下式：ＮｉＥＱ＝－２５／３２ＣｒＥＱ＋２５±０．５（ＣｒＥＱ＜１９）ＮｉＥＱ＝２４／２５ＣｒＥＱ－４．２８±０．５（ＣｒＥＱ＞１９
The relationship between the composition of the alloy and the stacking fault energy was discussed. Based on the Schaefler diagram, the influence of the composition of the alloy on the microstructures of the alloy was presented, and a more reasonable alloy composition design was proposed. Adding chromium, nickel alloy elements, while reducing the manganese content can ensure that the alloy has a lower alloy layer fault energy. When the silicon content is 6%, the stacking fault energy is the lowest. If no special requirements, chromium content should be controlled within 10%. The nickel content is Cr% / 1.7 to prevent the precipitation of sigma phase. Mn content is to ensure Ms point slightly higher than room temperature to determine. The compositional equivalent of the alloy should satisfy the following formula: NiEQ = -25 / 32CrEQ + 25 ± 0.5 (CrEQ <19) NiEQ = 24 / 25CrEQ-4.28 ± 0.5 (CrEQ> 19