The upper limit of the range of the coating hardness used in the quality control in production can be determined according to the threshold in the specific work hardness curve.

对某类涂层随涂层硬度增加，刮削功上升并有一阈值，以此值可确定生产中检验硬度范围的上限。

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Designed a medium manganese cast steel used to making hammer, which has good work-hardness under non severe impact condition.

设计了一种中锰铸钢锤头材质，其在非强冲击条件下具有较好的加工硬化效果。

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