Effect of abrasive water jet peening on NaCl-induced hot corrosion behavior of Ti–6Al–4V

Abstract

Hot corrosion studies were performed on pristine and abrasive water jet peened (AWJP) Ti–6Al–4V surfaces. Oxide scales form on the peened and pristine surfaces when coated with NaCl and exposed to 600 °C for 100 h. Despite similar oxide compositions on both surfaces, the thickness and roughness of the oxide scale on the AWJ peened surface is lower. The hot corrosion rate of the pristine surface is 2.5 times higher than that on the AWJ peened surface. Enhanced hot corrosion resistance of the latter is attributed to compressive residual stresses on the surface that retards diffusion of chloride in the material.

Publication DOI: https://doi.org/10.1016/j.vacuum.2023.111872
Divisions: College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Polymer Research Group
College of Engineering & Physical Sciences > Engineering for Health
College of Engineering & Physical Sciences > Aston Advanced Materials
Aston University (General)
Additional Information: Copyright © 2023 Elsevier Ltd. This accepted manuscript version is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License [https://creativecommons.org/licenses/by-nc-nd/4.0/].
Uncontrolled Keywords: Abrasive cavitation peening,Compressive residual stress,Hot corrosion,NaCl molten Salt,Ti–6Al–4V alloy,Instrumentation,Condensed Matter Physics,Surfaces, Coatings and Films
Publication ISSN: 1879-2715
Last Modified: 09 Dec 2024 08:56
Date Deposited: 13 Mar 2023 12:24
Full Text Link:
Related URLs: https://www.sci ... 042207X23000696 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2023-04
Published Online Date: 2023-01-28
Accepted Date: 2023-01-26
Authors: Chakkravarthy, V.
Oliveira, J.P.
Mahomed, Anisa (ORCID Profile 0000-0002-3719-7543)
Yu, Nan
Manojkumar, P.
Lakshmanan, M.
Zhang, Long
Raja, V.
Jerome, S.
Prabhu, T. Ram
Narayan, R.L.

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