14th International Conference on Shot Peening

Bending Fatigue Resistance Of Duplex Peened Austempered Ductile Iron

Warren Abela, Glenn Cassar, Axel Steuwer, Ann Zammit

University of Malta, Department of Metallurgy and Materials Engineering, Faculty of Engineering, Msida MSD 2080, Malta – warrenabela96@gmail.com

University of Malta, Department of Metallurgy and Materials Engineering, Faculty of Engineering, Msida MSD 2080, Malta – glenn.cassar@um.edu.mt

University of Malta, Research Support Services Directorate, Msida MSD 2080, Malta – axel.steuwer@um.edu.mt

d* University of Malta, Department of Metallurgy and Materials Engineering, Faculty of Engineering, Msida MSD 2080, Malta – ann.zammit@um.edu.mt (Corresponding author)

Introduction

Several studies have been carried out to investigate the effect of conventional shot peening on the bending fatigue of austempered ductile iron (ADI) [1-4]. However, the effect of duplex peening on ADI is still unexplored.

Objectives

Therefore, this study employs a holistic approach involving the characterisation of as-treated and shot peened ADI specimens to investigate the potential of duplex shot peening of Cu-Ni ADI as a means to further improve the fatigue behaviour when compared to conventional shot peening.