14th International Conference on Shot Peening
Abstract [75]
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Luana Bonnicia, Joseph Buhagiara, Glenn Cassara, Jian Chenb, Xiyu Zhangb, Mingyue Liub, Zhiquan Huangb, Ann Zammita Department of Metallurgy and Materials Engineering, University of Malta, Msida, Malta; b School of Materials Science and Engineering, SEU University, Nanjing, Jiangsu Province, China |
Introduction
In the marine transportation industry, the maintenance required due to the natural elements, leading to corrosion failure or other mechanical failures during the voyage is high. Hence, resulting in frequent replacement of marine components. Although the technology of additive manufacturing (AM) can potentially reduce the downtime, it has not fully matured to be able to offer replacement of traditional manufacturing methods, including those used in the maritime transportation industry, such as propellers [1]. The high surface roughness and residual stresses produced during the AM process limit the application of such a manufacturing method [2]. As a posterior treatment, shot peening (SP) is thus being proposed to improve the surface by reducing the roughness, increasing the hardness, generating compressive residual stresses and improving the corrosion resistance.
Objectives
In this study, SP was applied on additively manufactured 316L stainless steel (SS) to analyse its effect on corrosion resistance in simulated ocean water, microstructure, microhardness, roughness and residual stress.
Date
15 Novembre 2022