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

V. Chakkravarthy*, J.P. Oliveira*, Anisa Mahomed, Nan Yu, P. Manojkumar, M. Lakshmanan, Long Zhang, V. Raja, S. Jerome, T. Ram Prabhu, R.L. Narayan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number111872
Number of pages10
Early online date28 Jan 2023
Publication statusPublished - Apr 2023

Bibliographical note

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/].


  • Abrasive cavitation peening
  • Compressive residual stress
  • Hot corrosion
  • NaCl molten Salt
  • Ti–6Al–4V alloy


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