Effect of heat treatment temperature on the performance of nano-TiO2 coating in protecting 316L stainless steel against corrosion under UV illumination and dark conditions

Sahnesarayi, Mohammad Karimi; Sarpoolaky, H.; Rastegari, S.

doi:10.1016/j.surfcoat.2014.07.071

Cited by 52 publications

(29 citation statements)

References 59 publications

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“…1 Ceramic materials are resistant against oxidation, corrosion, erosion, and abrasion; therefore, they can protect metals against chemical attacks. In this relation, TiN, 2 TaO 2 , 3 ZrO 2 , 2 SiO 2 , 4 TiO 2 , [5][6][7][8][9] and Al 2 O 3 2,10 coatings have been reported. In addition, synthetic coatings containing two or more ceramic materials were introduced.…”

Section: Introductionmentioning

confidence: 71%

“…The characteristics of composite materials are influenced by their components, which can be designed in synthesizing new materials. As mentioned in previous studies, TiO 2 thin film could diminish corrosion current density and make the steel substrate passive . On the other hand, Al 2 O 3 as a ceramic material with high hardness has been identified as causing the increase in corrosion resistance and improving surface hardness when it is applied on steel .…”

Section: Introductionmentioning

confidence: 90%

“…As mentioned in previous studies, TiO 2 thin film could diminish corrosion current density and make the steel substrate passive. [5][6][7][8][9]15,16 On the other hand, Al 2 O 3 as a ceramic material with high hardness has been identified as causing the increase in corrosion resistance and improving surface hardness when it is applied on steel. 17 By simultaneous application of these two ceramic materials over steel, we can take advantage of corrosion and abrasion behaviors.…”

Section: Introductionmentioning

confidence: 99%

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Anticorrosion assessment of Al₂O₃‐TiO₂ composite thin films derived from sol‐gel dipping technique

Oliaee

Naghibi

2017

Int J Applied Ceramic Tech

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Metal surface protection by means of nanostructured ceramic coatings is considered an issue, which is variously scrutinized, and more efforts are made to improve steel performance in accordance with this method. In this respect, this study sought to examine the protective effects of a nanostructured coating containing TiO2 and Al2O3. The optimization approach for obtaining a coating without any cracks with the highest efficiency of corrosion resistance is reported. The variables under assessment were as follows: weight ratio of the oxides, calcination temperature, and preparation parameters. The synthesized samples were analyzed utilizing XRD, FESEM, AFM, Tafel test, EIS, and microhardness measurement. The results revealed that the optimized conditions were as follows: (i) Ti:Al precursor mixture with a weight ratio of 75:25, (ii) heat treatment at 1000°C. This process yielded a uniform composite coating without any cracks with 5.1 nm roughness, containing crystalline rutile phase and amorphous alumina. Not only the intended coating improves the corrosion resistance of steel up to 97%, but it also increases its surface hardness up to 10 units.

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Section: Introductionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Anticorrosion assessment of Al₂O₃‐TiO₂ composite thin films derived from sol‐gel dipping technique

Oliaee

Naghibi

2017

Int J Applied Ceramic Tech

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“…In recent years, more and more researches were carried out on the photocathodic protection activity of some optoelectronic semiconductors, such as TiO 2 [1][2][3][4], ZnO [5,6], SnO 2 [7] and α-Fe 2 O 3 /Fe 3 O 4 [8]. Among them, TiO 2 -base materials were mostly studied for its high photosensitivity, low cost, low toxicity, and good chemical and thermal stability since Yuan and Tsujikawa [9] found that Cu could be protected from corrosion by adding TiO 2 coating under illumination.…”

Section: Introductionmentioning

confidence: 99%

Photocathodic protection of 304 stainless steel by MnS/TiO2 nanotube films under simulated solar light

Zhang

Wang

et al. 2015

Surface and Coatings Technology

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“…[6] Sol-gel technique is a simple and inexpensive coating method, which has many advantages including low processing temperature, better control of coating composition, and ease of coating on substrates of complex geometries. [7] Sahnesarayi [8] synthesized the TiO 2 polymeric sol through partial hydrolysis and condensation of titanium isopropoxide as the starting material. The TiO 2 coatings were prepared on the stainless steel substrate via dip-coating at a withdrawal speed of 3 cm/min and heat treating at 673 K~973 K (400°C~700°C) for 30 minutes.…”

mentioning

confidence: 99%

Microstructure of TiC-Based Coatings on Cemented Carbide Derived by Sol-Gel Routes

Yang

Guo

et al. 2016

Metall Mater Trans A

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TiC-based coating is prepared by depositing TiO 2 sol on cemented carbide compact and liquid phase sintering. TiC forms due to carbothermal reduction reaction of TiO 2 and then reacts with WC and transforms to TiC-based solid solution. Ti content changes the WC growth mechanism and results in the multi-stepped morphology. When sintered cemented carbide is used as substrate, WC keeps the equilibrium truncated triangle prism morphology due to the relatively weak diffusion among Ti, WC, and Co.TiC is extensively used as an intermediate layer or final coatings on cemented carbide tools or wear parts due to its high hardness, thermal stability, wear resistance, oxidation resistance, and low friction coefficient. [1] Vapor deposition methods are widely used in industrial scale to coat TiC on cemented carbide. [2][3][4] However, expensive furnaces are required and the controlling of processing parameters is complicated. Furthermore, CVD coatings are typically deposited at relatively high temperatures of 773 K~1323 K (500°C~1050°C), [5] which has neglect effect on the toughness and hardness of substrates and adhesion strength of coatings. [6] Sol-gel technique is a simple and inexpensive coating method, which has many advantages including low processing temperature, better control of coating composition, and ease of coating on substrates of complex geometries. [7] Sahnesarayi [8] synthesized the TiO 2 polymeric sol through partial hydrolysis and condensation of titanium isopropoxide as the starting material. The TiO 2 coatings were prepared on the stainless steel substrate via dip-coating at a withdrawal speed of 3 cm/min and heat treating at 673 K~973 K (400°C~700°C) for 30 minutes. Dong [9] synthesized anatase TiO 2 thin films on fused quartz by sol-gel dip-coating method followed by annealing at 800 K (527°C). Hu [10] prepared dense Al 2 O 3 precursor using aluminum isopropoxide (Al(OPri) 3 ) as raw material, and dense Al 2 O 3 thin film were obtained by spin-coating of the sol on fused Pt/Ti/SiO 2 /Si wafers and followed by drying at 473 K (200°C) for 10 minutes, pyrolyzing at 673 K (400°C) for 10 minutes, and calcining at 773 K (500°C) for 3 hours. Chen [11] prepared boehmite sol at 363 K(90°C) from aluminum isopropoxide solution by a sol-gel route. Al 2 O 3 film was fabricated after depositing the sol on cemented carbide and sintering at 1423 K to 1573 K (1150°Cto 1300°C). It should be noted that sol-gel method is typically characterized by hydrolysis and condensation of metal salt, followed by calcination, thus generally yielding an oxide other than carbide.In the paper, sol-gel method is utilized to prepare TiC-based coating. TiO 2 sol is prepared and deposited onto cemented carbide compact other than as-sintered bodies, and then TiC-based coating can be achieved due to the carbothermal reaction of TiO 2 during vacuum sintering of the TiO 2 sol-coated green body. Furthermore, neglect effect of coating process on the substrate can be avoided since the compact other than sintered cemented carbide is used as the sub...

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Effect of heat treatment temperature on the performance of nano-TiO2 coating in protecting 316L stainless steel against corrosion under UV illumination and dark conditions

Cited by 52 publications

References 59 publications

Anticorrosion assessment of Al₂O₃‐TiO₂ composite thin films derived from sol‐gel dipping technique

Anticorrosion assessment of Al₂O₃‐TiO₂ composite thin films derived from sol‐gel dipping technique

Photocathodic protection of 304 stainless steel by MnS/TiO2 nanotube films under simulated solar light

Microstructure of TiC-Based Coatings on Cemented Carbide Derived by Sol-Gel Routes

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Effect of heat treatment temperature on the performance of nano-TiO2 coating in protecting 316L stainless steel against corrosion under UV illumination and dark conditions

Cited by 52 publications

References 59 publications

Anticorrosion assessment of Al2O3‐TiO2 composite thin films derived from sol‐gel dipping technique

Anticorrosion assessment of Al2O3‐TiO2 composite thin films derived from sol‐gel dipping technique

Photocathodic protection of 304 stainless steel by MnS/TiO2 nanotube films under simulated solar light

Microstructure of TiC-Based Coatings on Cemented Carbide Derived by Sol-Gel Routes

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Anticorrosion assessment of Al₂O₃‐TiO₂ composite thin films derived from sol‐gel dipping technique

Anticorrosion assessment of Al₂O₃‐TiO₂ composite thin films derived from sol‐gel dipping technique