An analytical function for describing hardness distribution in round section of quenched steel, known as U-curve, has been established.
建立了描述淬火钢圆形截面硬度分布曲线——U曲线的解析函数表达式。
The hardness of quenched martensitic stainless steels increases with carbon content and it reaches a nearly invariant value as the carbon content in steels is higher than about 0.6%.
马氏体不锈钢淬火后的硬度随钢中碳含量增加而增高，当碳含量达到0.6％左右后，钢的硬度基本上不再增高。
The deformed band and transformed band are made up of very fine martensite laths, its hardness is much higher than that of the as-quenched specimen.
弹坑表面的变形带和相变带是由非常细小马氏体板条组成，其硬度非常高，远远高于装甲钢板的基体和淬火硬度。
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