Very High Cycle Fatigue Behavior of Plasma Nitrided 316 Stainless Steel
In this study,plasma nitriding was performed for 316 stainless steel under 2 different processing time,15hours and 25hours.Cantilever type rotational bending fatigue tests were carried out using the nitrided and non-treated samples in high cycle and very high cycle fatigue life regime in order to examine the influence of the plasma nitriding on the fatigue properties in the both fatigue life regimes of 316 stainless steel.As a result,the fatigue strength was improved by the plasma nitriding and the shape of the S-N curves was a asymptote shape with a fatigue limit up to N = 108 cycles.The fatigue cracks initiated from specimen surface in all specimen.However,the improvement of fatigue strength by plasma nitriding and the influence of nitriding time on the fatigue strength was small because the nitriding layer was quite thin,especially in the diffusion layer.For this reason,it is believed that the nitrided layer could not affect significantly the fatigue strength.
Very high cycle fatigue Plasma nitriding Stainless steel Cantilever-type rotary bending fatigue test.
Daisuke Yonekura K.Ozaki R.Shibahara Insup Lee R.Murakami
Department of Mechanical Engineering,The University of Tokushima,Tokushima 770 8506,Japan Department of Advanced Material Engineering,Dongeui University,Busan 614 714,Korea
国际会议
北京
英文
1-8
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）