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

doi:10.1016/j.vacuum.2023.111872

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 journal › Article › peer-review

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.

Original language	English
Article number	111872
Number of pages	10
Journal	Vacuum
Volume	210
Early online date	28 Jan 2023
DOIs	https://doi.org/10.1016/j.vacuum.2023.111872
Publication status	Published - 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/].

Keywords

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

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10.1016/j.vacuum.2023.111872

AWJ peening Ti-6Al-4V_AAM
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/]
Accepted author manuscript, 1.75 MBLicence: CC BY-NC-ND 4.0

Cite this

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title = "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.",

keywords = "Abrasive cavitation peening, Compressive residual stress, Hot corrosion, NaCl molten Salt, Ti–6Al–4V alloy",

author = "V. Chakkravarthy and J.P. Oliveira and Anisa Mahomed and Nan Yu and P. Manojkumar and M. Lakshmanan and Long Zhang and V. Raja and S. Jerome and Prabhu, {T. Ram} and R.L. Narayan",

note = "Copyright {\textcopyright} 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/].",

year = "2023",

month = apr,

doi = "10.1016/j.vacuum.2023.111872",

language = "English",

volume = "210",

journal = "Vacuum",

issn = "0042-207X",

publisher = "Elsevier",

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TY - JOUR

T1 - Effect of abrasive water jet peening on NaCl-induced hot corrosion behavior of Ti–6Al–4V

AU - Chakkravarthy, V.

AU - Oliveira, J.P.

AU - Mahomed, Anisa

AU - Yu, Nan

AU - Manojkumar, P.

AU - Lakshmanan, M.

AU - Zhang, Long

AU - Raja, V.

AU - Jerome, S.

AU - Prabhu, T. Ram

AU - Narayan, R.L.

N1 - 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/].

PY - 2023/4

Y1 - 2023/4

N2 - 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.

AB - 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.

KW - Abrasive cavitation peening

KW - Compressive residual stress

KW - Hot corrosion

KW - NaCl molten Salt

KW - Ti–6Al–4V alloy

UR - https://www.sciencedirect.com/science/article/pii/S0042207X23000696

UR - http://www.scopus.com/inward/record.url?scp=85147330796&partnerID=8YFLogxK

U2 - 10.1016/j.vacuum.2023.111872

DO - 10.1016/j.vacuum.2023.111872

M3 - Article

SN - 0042-207X

VL - 210

JO - Vacuum

JF - Vacuum

M1 - 111872

ER -

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

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