Abstract

We present the results of experimental investigation of the fretting-fatigue with bending for 40Kh steel after ion nitriding in hydrogen-free and hydrogen-containing media. The optimal mode of ion nitriding in hydrogen-free media is determined according to the criterion of maximum service life of 40Kh steel under the conditions of fretting-fatigue. We also establish the effect of hydrogen on steel after nitriding in hydrogen-containing medium.

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