Corrosion and wear behaviour of ZrO 2 modified NiTi coatings on AISI 316 stainless steel

Lepule, Masego L.; Obadele, Babatunde Abiodun; Andrews, Anthony P.; Olubambi, Peter Apata

doi:10.1016/j.surfcoat.2014.11.072

Cited by 26 publications

(17 citation statements)

References 18 publications

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“…However, the wear mechanism of the coatings in this study is mainly comprised of abrasive and adhesive wear. Similar results also reported by other researchers [22,25]. On the other hand, Dai et al [19] reported that the wear mechanism of the coating is only abrasive wear.…”

Section: Microhardness Residual Stress and Wear Analysessupporting

confidence: 88%

“…Hence, the material loss will depend on how loosely bond the worn-out material is adhered to the surface [25]. However, the wear mechanism of the coatings in this study is mainly comprised of abrasive and adhesive wear.…”

Section: Microhardness Residual Stress and Wear Analysesmentioning

confidence: 98%

“…Laser surface alloying (LSA) and laser cladding are important technologies, widely used to improve surface properties of Al alloys [2,[7][8][9][10][11][12][13][14][15], titanium alloys [16][17][18][19], magnesium alloys [20,21], copper alloys [22], nickel-copper alloys [23,24] and stainless steels [25][26][27]. However, with LSA process the selection of the alloying elements, compositional ratio and elemental surface distribution is crucial since it has a paramount effect towards microstructural development in the alloyed layer [28].…”

Section: Introductionmentioning

confidence: 99%

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Energy Density Effect of Laser Alloyed TiB2/TiC/Al Composite Coatings on LMZ/HAZ, Mechanical and Corrosion Properties

Ravnikar

Trdan

Nagode

et al. 2020

Metals

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In the present work, TiC/TiB2/Al composite coatings were synthesized onto a precipitation hardened AlSi1MgMn alloy by laser surface alloying (LSA), using 13.3 J/mm2 and 20 J/mm2 laser energy densities. Microstructure evaluation, microhardness, wear and corrosion performance were investigated and compared with the untreated/substrate Al alloy sample. The results confirmed sound, compact, crackles composite coating of low porosity, with a proper surface/substrate interface. Microstructural analyses revealed the formation of extremely fine nano-precipitates, ranging from of 50–250 nm in the laser melted (LMZ) and large precipitates, accompanied with grain coarsening in the heat-affected zone (HAZ), due to the substrate overheating during the LSA process. Nonetheless, both coatings achieved higher microhardness, with almost 7-times higher wear resistance than the untreated sample as a consequence of high fraction volume of hard, wear resistant TiB2 and TiC phases inside the composite coatings. Further, cyclic polarization results in 0.5 M NaCl aqueous solution confirmed general improvement of corrosion resistance after LSA processed samples, with reduced corrosion current by more than a factor of 9, enhanced passivation/repassivation ability and complete prohibition of crystallographic pitting, which was detected with the untreated Al alloy.

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Section: Microhardness Residual Stress and Wear Analysessupporting

confidence: 88%

Section: Microhardness Residual Stress and Wear Analysesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Energy Density Effect of Laser Alloyed TiB2/TiC/Al Composite Coatings on LMZ/HAZ, Mechanical and Corrosion Properties

Ravnikar

Trdan

Nagode

et al. 2020

Metals

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“…A number of resistive coatings for corrosion prevention of 316L SS have been developed by using the sol-gel method, including the use of a smooth, uniform, thin film of Titania (TiO 2 ) nanoparticles to improve the corrosion resistance [12] and the use of nanometric Al 2 O 3 and TiO 2 alternating composite layers on 316L SS substrates deposited via ALD [19]. Corrosion and wear performance have also been improved by the use of NiTi coating modified with ZrO 2 coatings on AISI 316 SS [22] by using a cold spray technology (a coating process in which a metal substrate is exposed to small particles (1 to 50 µm), which are accelerated by the supersonic flow of compressed gas at a high speed (300-1200 m/s)). The process is based on a combination of particle temperature, speed and size to allow spraying at the lowest possible temperature to: coat the cobalt chromium (Co-Cr) alloy L605 powders in order to improve the corrosion resistance and the strength of 316L SS [23]; Pd-Ni/Pd-Cu double coating on the 316SS surface by electroplating [24]; nanocomposite coatings of polychlorotrifluoroethylene (PCTFE) particles with nickel-tungsten (Ni-W) coatings through the electro deposition procedure [25]; polymerized vinyltrimethoxysilane (PVTMS) coating with henna's aqueous solution forming a PVTMS/henna hybrid sol-gel for biomedical applications [26]; polyaniline-graphene nanocomposite coatings electrodeposited on 310 SS by cyclic voltammetry technique [27]; and synthesis of polyaniline-montmorrilonite nanocomposite coatings deposited on 316L SS by electrodeposition [28,29].…”

Section: Introductionmentioning

confidence: 99%

Characterization of PTFE Film on 316L Stainless Steel Deposited through Spin Coating and Its Anticorrosion Performance in Multi Acidic Mediums

et al. 2020

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Polytetrafluoroethylene (PTFE) was coated on 316L stainless steel (SS) substrate through a spin coating technique to enhance its corrosion resistance properties in hydrochloric acid (HCl) and nitric acid (HNO3) medium. Scanning electron microscopy (SEM) revealed the morphology of the coated and uncoated substrates and showed a uniform and crack-free PTFE coating on 316L SS substrate, while a damaged surface with thick corrosive layers was observed after the electrochemical test on the uncoated sample. However, an increased concentration of HCl and HNO3 slightly affected the surface morphology by covering the corrosive pits. An atomic force microscope (AFM) showed that the average surface roughness on 316L SS and PTFE coating was 26.3 nm and 24.1 nm, respectively. Energy dispersive X-ray spectroscopy (EDS) was used for the compositional analysis, which confirmed the presence of PTFE coating. The micro Vickers hardness test was used to estimate the hardness of 316L SS and PTFE-coated substrate, while the scratch test was used to study the adhesion properties of PTFE coating on 316L SS. The anticorrosion measurements of 316L SS and PTFE-coated substrates were made in various HCl and HNO3 solutions by using the electrochemical corrosion test. A comparison of the corrosion performance of PTFE-coated substrate with that of bare 316L SS substrate in HCl medium showed a protection efficiency (PE) of 96.7%, and in the case of HNO3 medium, the PE was 99.02%, by slightly shifting the corrosion potential of the coated sample towards the anodic direction.

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“…In these situations, another way of achieving improvement in performance is utilizing surface modification technologies involving coating formulations on the surfaces of existing materials and obtained expected properties [1]. Surface modification technologies allow the realization of a favorable compromise between cost and performance by endowing the material surfaces with a high hardness value, effective friction-reduction, excellent corrosion resistance, and promising mechanical performance, without affecting the entire structure of the material [2].…”

Section: Introductionmentioning

confidence: 99%

Surface Texturing-Plasma Nitriding Duplex Treatment for Improving Tribological Performance of AISI 316 Stainless Steel

et al. 2016

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Surface texturing-plasma nitriding duplex treatment was conducted on AISI 316 stainless steel to improve its tribological performance. Tribological behaviors of ground 316 substrates, plasma-nitrided 316 (PN-316), surface-textured 316 (ST-316), and duplex-treated 316 (DT-316) in air and under grease lubrication were investigated using a pin-on-disc rotary tribometer against counterparts of high carbon chromium bearing steel GCr15 and silicon nitride Si3N4 balls. The variations in friction coefficient, mass loss, and worn trace morphology of the tested samples were systemically investigated and analyzed. The results showed that a textured surface was formed on 316 after electrochemical processing in a 15 wt % NaCl solution. Grooves and dimples were found on the textured surface. As plasma nitriding was conducted on a 316 substrate and ST-316, continuous and uniform nitriding layers were successfully fabricated on the surfaces of the 316 substrate and ST-316. Both of the obtained nitriding layers presented thickness values of more than 30 μm. The nitriding layers were composed of iron nitrides and chromium nitride. The 316 substrate and ST-316 received improved surface hardness after plasma nitriding. When the tribological tests were carried out under dry sliding and grease lubrication conditions, the tested samples showed different tribological behaviors. As expected, the DT-316 samples revealed the most promising tribological properties, reflected by the lowest mass loss and worn morphologies. The DT-316 received the slightest damage, and its excellent tribological performance was attributed to the following aspects: firstly, the nitriding layer had high surface hardness; secondly, the surface texture was able to capture wear debris, store up grease, and then provide continuous lubrication.

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Corrosion and wear behaviour of ZrO 2 modified NiTi coatings on AISI 316 stainless steel

Cited by 26 publications

References 18 publications

Energy Density Effect of Laser Alloyed TiB2/TiC/Al Composite Coatings on LMZ/HAZ, Mechanical and Corrosion Properties

Energy Density Effect of Laser Alloyed TiB2/TiC/Al Composite Coatings on LMZ/HAZ, Mechanical and Corrosion Properties

Characterization of PTFE Film on 316L Stainless Steel Deposited through Spin Coating and Its Anticorrosion Performance in Multi Acidic Mediums

Surface Texturing-Plasma Nitriding Duplex Treatment for Improving Tribological Performance of AISI 316 Stainless Steel

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