Modification of passive film on Ti–6Al–4V alloy induced by Bacillus vietnamensis

Mohammed Arroussi; Qing Jia; Jinlong Zhao; Zhizhou Xia; Chunguang Bai; Ke Yang

doi:10.1016/j.matchemphys.2023.128679

Modification of passive film on Ti–6Al–4V alloy induced by Bacillus vietnamensis

Mohammed Arroussi
, Qing Jia
, Jinlong Zhao
, Zhizhou Xia
, Chunguang Bai^*
, Ke Yang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The utilization of Ti–6Al–4V alloy in marine infrastructures is somehow limited by susceptibility to biofouling and bacteria attachment, making studies on microbes-induced passive film degradation timely matter. The impact of Bacillus vietnamensis on passive film integrity of Ti–6Al–4V alloy was investigated. Electrochemical measurements and surface analysis revealed that, B. vietnamensis, which adhered preferentially on the α phase, accelerated dissolution of Ti₂O₃ in the passive film of Ti–6Al–4V alloy. Power-law model (PLM) revealed the changes in resistivity after exposure to B. vietnamensis. After 21 days of incubation, the i_corr value in biotic medium (6.50 ± 3.4 nA cm⁻²) was slightly higher than that in sterile medium (1.89 ± 1.1 nA cm⁻²), suggesting corrosivity of B. vietnamensis against Ti–6Al–4V alloy. This study established comprehensive understanding of interaction between passive film and marine-corrosive microbial fouling.

Original language	English
Article number	128679
Journal	Materials Chemistry and Physics
Volume	313
DOIs	https://doi.org/10.1016/j.matchemphys.2023.128679
State	Published - 1 Feb 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

B. vietnamensis
Microbial corrosion
Oxide film
Titanium alloy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.matchemphys.2023.128679

Cite this

@article{92adc31a5d3747ddbd4a9298b2e9abd7,

title = "Modification of passive film on Ti–6Al–4V alloy induced by Bacillus vietnamensis",

abstract = "The utilization of Ti–6Al–4V alloy in marine infrastructures is somehow limited by susceptibility to biofouling and bacteria attachment, making studies on microbes-induced passive film degradation timely matter. The impact of Bacillus vietnamensis on passive film integrity of Ti–6Al–4V alloy was investigated. Electrochemical measurements and surface analysis revealed that, B. vietnamensis, which adhered preferentially on the α phase, accelerated dissolution of Ti2O3 in the passive film of Ti–6Al–4V alloy. Power-law model (PLM) revealed the changes in resistivity after exposure to B. vietnamensis. After 21 days of incubation, the icorr value in biotic medium (6.50 ± 3.4 nA cm−2) was slightly higher than that in sterile medium (1.89 ± 1.1 nA cm−2), suggesting corrosivity of B. vietnamensis against Ti–6Al–4V alloy. This study established comprehensive understanding of interaction between passive film and marine-corrosive microbial fouling.",

keywords = "B. vietnamensis, Microbial corrosion, Oxide film, Titanium alloy",

author = "Mohammed Arroussi and Qing Jia and Jinlong Zhao and Zhizhou Xia and Chunguang Bai and Ke Yang",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2024",

month = feb,

day = "1",

doi = "10.1016/j.matchemphys.2023.128679",

language = "English",

volume = "313",

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T1 - Modification of passive film on Ti–6Al–4V alloy induced by Bacillus vietnamensis

AU - Arroussi, Mohammed

AU - Jia, Qing

AU - Zhao, Jinlong

AU - Xia, Zhizhou

AU - Bai, Chunguang

AU - Yang, Ke

PY - 2024/2/1

Y1 - 2024/2/1

N2 - The utilization of Ti–6Al–4V alloy in marine infrastructures is somehow limited by susceptibility to biofouling and bacteria attachment, making studies on microbes-induced passive film degradation timely matter. The impact of Bacillus vietnamensis on passive film integrity of Ti–6Al–4V alloy was investigated. Electrochemical measurements and surface analysis revealed that, B. vietnamensis, which adhered preferentially on the α phase, accelerated dissolution of Ti2O3 in the passive film of Ti–6Al–4V alloy. Power-law model (PLM) revealed the changes in resistivity after exposure to B. vietnamensis. After 21 days of incubation, the icorr value in biotic medium (6.50 ± 3.4 nA cm−2) was slightly higher than that in sterile medium (1.89 ± 1.1 nA cm−2), suggesting corrosivity of B. vietnamensis against Ti–6Al–4V alloy. This study established comprehensive understanding of interaction between passive film and marine-corrosive microbial fouling.

AB - The utilization of Ti–6Al–4V alloy in marine infrastructures is somehow limited by susceptibility to biofouling and bacteria attachment, making studies on microbes-induced passive film degradation timely matter. The impact of Bacillus vietnamensis on passive film integrity of Ti–6Al–4V alloy was investigated. Electrochemical measurements and surface analysis revealed that, B. vietnamensis, which adhered preferentially on the α phase, accelerated dissolution of Ti2O3 in the passive film of Ti–6Al–4V alloy. Power-law model (PLM) revealed the changes in resistivity after exposure to B. vietnamensis. After 21 days of incubation, the icorr value in biotic medium (6.50 ± 3.4 nA cm−2) was slightly higher than that in sterile medium (1.89 ± 1.1 nA cm−2), suggesting corrosivity of B. vietnamensis against Ti–6Al–4V alloy. This study established comprehensive understanding of interaction between passive film and marine-corrosive microbial fouling.

KW - B. vietnamensis

KW - Microbial corrosion

KW - Oxide film

KW - Titanium alloy

UR - https://www.scopus.com/pages/publications/85178367017

U2 - 10.1016/j.matchemphys.2023.128679

DO - 10.1016/j.matchemphys.2023.128679

M3 - Article

AN - SCOPUS:85178367017

SN - 0254-0584

VL - 313

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

M1 - 128679

ER -

Modification of passive film on Ti–6Al–4V alloy induced by Bacillus vietnamensis

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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