Showing papers by "R. Gnanamoorthy published in 2013"
TL;DR: In this article, the surface mechanical attrition treatment (SMAT) was carried out on Ti-6Al-4V surfaces to achieve surface nanocrystallization, which resulted in high hardness, low tangential force coefficient (TFC) and more TiO 2 layer, fretting wear resistance of treated samples was higher than that of untreated samples.
44 citations
TL;DR: In this paper, a three-layer perceptron feed forward artificial neural network (ANN) was employed to predict the fretting wear behavior of surface mechanical attrition treated and untreated Ti-6Al-4V fretted against alumina and steel counterbodies.
19 citations
TL;DR: In this article, the effect of counterbody material on fretting wear resistance of 304 stainless steel is investigated, and the results showed that the 304 steel samples fretted with alumina counterbody exhibited higher wear volume due to higher contact stress and tribochemical reaction between the tribopair.
Abstract: Effect of counterbody material on fretting wear resistance of 304 stainless steel is investigated in the present study. Fretting wear experiments were carried out at different normal loads on 304 stainless steel samples for 25 000 cycles using four different counterbody materials (alumina, SAE 52100 steel, 304 stainless steel and Ti–6Al–4V). At different normal loads, different fretting regimes were observed: gross slip at 1·96 and 4·98 N, mixed stick slip at 9·8 and 14·7 N and near stick at 19·6 N. Samples fretted against alumina counterbody exhibited higher tangential force coefficient values compared to those fretted with other counterbodies. The 304 stainless steel samples fretted with alumina counterbody exhibited higher wear volume due to higher contact stress and tribochemical reaction between the tribopair. The samples fretted against both 304 stainless steel and SAE 52100 steel counterbodies exhibited almost similar wear volume due to similar levels of adhesion between the contacting mate...
6 citations
01 Jan 2013
TL;DR: In this paper, the authors have proposed that rolling contact fatigue is a predefined condition in polymer nanocomposite, which is a type of composite material that has received great research interest in design of engineering components owing to its remarkable improvement in tribological characteristics.
Abstract: Polymer nanocomposite has received great research interest in design of engineering components owing to its remarkable improvement in tribological characteristics. Rolling contact fatigue is a pred...
2 citations