Technology and Antimicrobial Properties of Cu/TiB&lt;sub&gt;2&lt;/sub&gt; Composite Coating on 304 Steel Surface Prepared by Laser Cladding

Sun, Yu; Tran, Vannghia; Zhang, Dao; Wang, Wen Bin; Yang, Sen

doi:10.4028/www.scientific.net/msf.944.473

Cited by 5 publications

(3 citation statements)

References 19 publications

(21 reference statements)

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“…Cu 2+ ions kill microbial bacteria by breaking the cell membrane thereby killing bacteria, hence Cu has antibacterial properties [Oulmaset al, 2019]. Dense TiB2 coatings were corrosion-resistant in the corrosive medium [Sun, et al, 2019].TiB2-Ni coatings have been deposited using the HVOF (high-velocity oxy-fuel) process and their bonding and adhesion have shown significant improvement to the substrate [Senthil Kumar, and Murali Krishna, 2020;Gyawali, et al ., 2017]. Ti coatings have been found to increase the mechanical properties of substrate metal manifolds [Banday and Wani., 2020].…”

Section: Introductionmentioning

confidence: 99%

Escherichia coli (ATCC 25922) induced corrosion in Zn-Ni-Cu and Zn-Ni-Cu- TiB 2 coated ASTM A-36 Steel

Ali,

nazir

2024

Preprint

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The study aimed to investigate the corrosion performance of Zn-Ni-Cu and Zn-Ni-Cu-TiB2 coatings in the microbial-induced environment (E-Coli, ATCC 25922, and 3.5%NaCl solution). Zn-Ni-Cu and Zn-Ni-Cu-TiB2 were surfaces coated on an ASTM A-36 Steel substrate utilizing a high-velocity oxy-fuel (HVOF) thermal spray process. Immersion tests following ASTM G-31, and ASTM G1-03, standards were performed in Escherichia Coli (E-Coli, American Type Culture CollectionATCC25922) bacteria medium.The effect of Zn, Ni, and Ti was studied in preventing microbial-induced corrosion.SEM, and XRD analysis before and after helped to understand the morphological and structural changes in coated/uncoated ASTM A-36 steel. Various forms of rust were ascertained in XRD analysis. The presence of Zn and Cu prevented the bacterial attachment with coated surface and hence prevented the underlying substrate from being corroded substantially.The coatings performed well and limited the growth of bacteria. The uncoated ASTM A-36 Steel specimen showed well-developed bacterial colonies on the surface and in the solution medium. All forms of rust were reported in XRD analysis for uncoated ASTM A-36 steel while few forms of rust were reported in coated ASTM A-36 steel.Tafel polarization and electrochemical impedance spectroscopy (EIS) in Escherichia Coli (E-Coli, ATCC 25922) medium confirmed that coated samples were more corrosion resistant than uncoated ASTM A-36 Steel specimens because of the corrosion potential (Ecorr) values of both coated samples were higher than uncoated ASTM A-36 Steel suggesting better anodic protection. The corrosion current density (Icorr) of both coated samples (Zn-Ni-Cu and Zn-Ni-Cu-TiB2) were lower than uncoated ASTM A-36 Steel specimens also inferring better performance.Results of the current study concluded that Zn-Ni-Cu-TiB2 coated ASTM A-36 Steel was able to enhance the microbial-induced corrosion resistance without deteriorating the microstructural, adhesion strength, and other properties of the coating. The mass loss for both Zn-Ni-Cu and Zn-Ni-Cu-TiB2 coatings was 88% less compared to uncoated ASTM A-36 Steel. It is seen from scanning electron micrographs that the coatings produced were well-developed with minimum pores and cracks. After immersion cycle tests none of the coatings showed delamination or microbial colony attachment to the surface compared to ASTM A-36 Steel wherein degradation of the whole surface is visible along with corrosion in the interface.

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Section: Introductionmentioning

confidence: 99%

Escherichia coli (ATCC 25922) induced corrosion in Zn-Ni-Cu and Zn-Ni-Cu- TiB 2 coated ASTM A-36 Steel

Ali,

nazir

2024

Preprint

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“…However, such research is limited to a low amount of TiB 2 in the Ag matrix, and the antimicrobial effect of such composite is not examined. Sun et al reported a laser-cladding prepared Cu/TiB 2 composite with a hardness of 70 HRC and excellent abrasion resistance, although at the expense of decreasing the antibacterial effect after adding TiB 2 [26].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Tribological Properties of Ag/TiBx Nanocomposite Thin Films with Strong Antibacterial Effect Prepared by Magnetron Co-Sputtering

et al. 2023

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The use of silver-based antimicrobial materials has been growing recently. Considering the threat of developing silver-resistant bacteria, it is essential to address the endurance of such materials and the amount of silver released into the environment. Here we report on a durable, antibacterial Ag/TiBx nanocomposite coating prepared by conventional magnetron sputtering. The coating consists of fine Ag clusters embedded in extremely hard, wear-resistant overstoichiometric TiBx, which serves as a protective matrix. The highest E. coli growth inhibition of 97% is observed for the coating containing 24 at.% of Ag. A strong antibacterial effect is also maintained after 45 days of immersion in the Luria–Bertani + 5% HNO3 solution. Despite a marked hardness decrease from 40 GPa for TiBx to 6.4 GPa for Ag/TiBx with 28 at.% of Ag, the coating maintains a good specific wear rate of 6 × 10−5 mm3/Nm. Moreover, the addition of Ag, which acts as a solid lubricant, decreases the coefficient of friction from 0.77 to 0.35, even at room temperature. Thanks to the combination of antibacterial properties and enhanced wear resistance, such material can find application as a protective coating for cutlery, door handles, water taps, and other daily-used objects in public areas.

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“…Cu 2+ ions kill microbial bacteria by breaking the cell membrane thereby killing bacteria, hence Cu has antibacterial properties [14]. Dense TiB2 coatings were corrosion-resistant in the corrosive medium [15].TiB2-Ni coatings have been deposited using the HVOF (high-velocity oxy-fuel) process and their bonding and adhesion have shown significant improvement than the substrate [16,17].…”

Section: Introductionmentioning

confidence: 99%

Microbial induced corrosion in Zn-Ni-Cu and Zn-Ni-Cu-TiB2 coated mild steel

Ali

Ahmad

2022

Preprint

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Zn-Ni-Cu and Zn-Ni-Cu-TiB 2 coatings were coated on a mild steel substrate utilizing a high-velocity oxy-fuel (HVOF) thermal spray process. A field emission scanning electron microscope (FESEM) was used to examine the microstructural characteristics of both coated and uncoated mild steel samples. Immersion tests following ASTM G-31, ASTM G1-03, standards were performed in Escherichia Coli (E-Coli) bacteria medium for 28 days (672 hrs), the weight loss of uncoated mild steel specimen was 982.5 mg, for Zn-Ni-Cu coated mild steel it was 116.5 mg, and for Zn-Ni-Cu-TiB 2 coated mild steel it was 115.1 mg. The uncoated mild steel specimen showed well-developed bacterial colonies on the surface and floating colonies of bacteria were observed in the medium solution. The coatings performed well and limited the growth of bacteria. Very few colonies of bacteria could be seen in both coated sample mediums. The presence of Zn and Cu prevented the bacterial attachment with coated surface and hence prevented the underlying substrate from being corroded substantially. Tafel polarization and electrochemical impedance spectroscopy (EIS) in Escherichia Coli (E-Coli) medium confirmed that coated samples were more corrosion resistant than uncoated mild steel specimens because the corrosion potential (Ecorr) values of both coated samples were higher than uncoated mild steel suggesting better anodic protection. The corrosion current density (Icorr) of both coated samples (Zn-Ni-Cu and Zn-Ni-Cu-TiB 2 ) were lower than uncoated mild steel specimens also inferring better performance of a coating in microbial induced corrosive environments.

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Technology and Antimicrobial Properties of Cu/TiB<sub>2</sub> Composite Coating on 304 Steel Surface Prepared by Laser Cladding

Cited by 5 publications

References 19 publications

Escherichia coli (ATCC 25922) induced corrosion in Zn-Ni-Cu and Zn-Ni-Cu- TiB 2 coated ASTM A-36 Steel

Escherichia coli (ATCC 25922) induced corrosion in Zn-Ni-Cu and Zn-Ni-Cu- TiB 2 coated ASTM A-36 Steel

Mechanical and Tribological Properties of Ag/TiBx Nanocomposite Thin Films with Strong Antibacterial Effect Prepared by Magnetron Co-Sputtering

Microbial induced corrosion in Zn-Ni-Cu and Zn-Ni-Cu-TiB2 coated mild steel

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