The effect of electrolytic-plasma polishing (EPP) on the mechanical properies of austenitic–martensitic VNS9-Sh TRIP sheet steel is investigated. EPP is found to exert a little effect on the static mechanical properties of VNS9-Sh steel due to some peculiarities of the strain-induced martensite formation during static tension. EPP increases the fatigue strength of the steel by decreasing the defect-induced stress concentration in the surface layer.

中文翻译：

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等离子抛光对奥氏体-马氏体VNS9-Sh TRIP钢力学性能的影响

研究了电浆抛光（EPP）对奥氏体-马氏体VNS9-Sh TRIP钢板的力学性能的影响。发现EPP对VNS9-Sh钢的静态力学性能影响不大，这是由于在静态拉伸过程中应变引起的马氏体形成的某些特性。EPP通过降低表面层中缺陷引起的应力集中来提高钢的疲劳强度。