The hardness of steel is one of the most important properties that determine its durability. To increase the hardness of the surface hardening technology used, nitriding and surface plastic deformation, which is based on a fundamentally different processes. The application of the combined method can improve the hardness of the surface layer of the material and increase the depth of hardening. This paper presents the results of studies of the properties of coatings obtained by nitration followed by ultrasonic hardening treatment.
Moscow State Automobile and Road Technical University (MADI), Department "Technology of construction materials", Russia, 125319, Moscow, Leningradskiy Prospekt d.64
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