An investigation of fretting fatigue behavior and mechanism in 17-4PH stainless steel with gradient structure produced by an ultrasonic surface rolling process

•A gradient structure layer was produced on 17-4PH specimens via USRP.•Element redistributions and texture appeared in the USRP treated samples.•Residual compressive stress played a main function in terms of improving FF life.•Nano-grains and “fish scale-like” topography had important influences. A...

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Veröffentlicht in:	International journal of fatigue 2020-02, Vol.131, p.105340, Article 105340
Hauptverfasser:	Liu, Dan, Liu, Daoxin, Zhang, Xiaohua, Liu, Chengsong, Ma, Amin, Xu, Xingchen, Zhang, Wencang
Format:	Artikel
Sprache:	eng
Schlagworte:	17-4PH stainless steel Closures Compressive properties Contact stresses Dislocation density Fatigue failure Fish Fretting Fretting fatigue Gradient structure layer Materials fatigue Skin pass rolling Stainless steels Steel structures Stress concentration Tensile stress Topography Ultrasonic surface rolling process
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