Effect of relative humidity and applied loads on the tribological behaviour of a steel/Cr2O3-ceramic coupling

Merlin, Mattia; Soffritti, Chiara; Vazquez, R.

doi:10.1016/j.wear.2013.03.043

Cited by 12 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The formation of tribofilm of magneli phase Ti oxide altered tribological behavior of these coatings. The transition from mild wear to severe oxidative wear was noted by Merlin et al [20] for pure Cr 2 O 3 coatings as a function of sliding velocity. In a recent study, the deposition of atmospheric plasma sprayed Cr 2 O 3 coating using higher current for deposition yielded higher microhardness, lower porosity and lower friction coefficient and wear loss as compared to coatings deposited at lower currents [21].…”

Section: Introductionmentioning

confidence: 66%

Friction energy map for sliding wear of Al₂O₃-TiO₂ and Cr₂O₃-TiO₂ coatings

Mehar¹,

Sapate²,

Vashishtha³

et al. 2021

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

The present study deals with the development of friction energy map for plasma sprayed Al2O3-TiO2 and Cr2O3-TiO2 coatings. Al2O3-TiO2 and Cr2O3-TiO2 coatings were deposited by atmospheric plasma spray technique. The structural and mechanical properties of coatings were studied using Scanning Electron Microscopy (SEM), x-ray Diffraction (XRD) and Vickers macro and micro hardness test. Sliding wear tests were performed on coated specimens over a range of sliding speed and load using pin on disc test apparatus. The analysis of worn surface and wear debris was carried by SEM, XRD and Raman Spectroscopy. Cr2O3-TiO2 coating showed higher hardness and elastic modulus and relatively lower fracture toughness than Al2O3-TiO2 coating. Al2O3-TiO2 coatings exhibited 1.8 times better wear resistance and 11%–30% lower friction coefficient, as compared to Cr2O3-TiO2 coating, depending upon the wear test conditions. The reduction in friction coefficient and wear rate at higher sliding speed was due to the formation of tribofilms on worn surface. A good correlation was observed between friction energy and contact severity; which incorporates mechanical properties of coatings. Friction energy map was used to rationalize wear rates of Al2O3-TiO2 and Cr2O3-TiO2 coatings, for the identification of various wear regimes and failure modes of the coating.

show abstract

Section: Introductionmentioning

confidence: 66%

Friction energy map for sliding wear of Al₂O₃-TiO₂ and Cr₂O₃-TiO₂ coatings

Mehar¹,

Sapate²,

Vashishtha³

et al. 2021

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

show abstract

“…25 Hashemi et al 26 had reported superior fracture toughness and wear resistance with Cr 2 O 3 and Cr 2 O 3 -20YSZ films produced through plasma spraying. Merlin et al 27 had investigated the wear behavior of Cr 2 O 3 coating against carbon steel under dry and lubricated conditions and reported an appreciable reduction in the wear rate of the substrate. Nairu et al 22 investigated the diffusion of Ti and Cr elements in the Cr 2 O 3 matrix and obtained appreciable results in the structural and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…had reported superior fracture toughness and wear resistance with Cr 2 O 3 and Cr 2 O 3 ‐20YSZ films produced through plasma spraying. Merlin et al 27 . had investigated the wear behavior of Cr 2 O 3 coating against carbon steel under dry and lubricated conditions and reported an appreciable reduction in the wear rate of the substrate.…”

Section: Introductionmentioning

confidence: 99%

Wear assessment of Cr₂O₃‐/TiAlN‐coated DAC‐10 tool steel against steel and Al₂O₃ counterbodies

Kumar

Maity

Patnaik

2021

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

TiAlN film was deposited on Cr2O3‐coated plasma‐nitrided DAC‐10 tool steel to obtained multilayer Cr2O3/TiAlN coating layer using cathodic arc deposition technique. The structural make‐up of the coating was characterized using Atomic Force Microscopy (AFM) and X‐ray diffraction methods, and the mechanical properties were evaluated using nanoindentation and nanoscratch test. The structural phases of the coating indicated the presence of crystalline CrO structure and cubic TiAlN phases. The coating showcased improved hardness (38 GPa), elastic modulus (387 GPa), and adhesion along with appreciable H/E (0.09) and H3/E2 (0.366 GPa) attributes. Further, friction‐induced wear behavior of the coating was investigated against steel and Al2O3 counterbodies under dry sliding conditions. The wear behavior of the coating was greatly influenced by its hardness and deformation properties and frictional behavior of the counterbodies. More spikes and fluctuation were observed in the frictional curve against Al2O3 counterbody attributed to the emanation of TiO2, Cr2O3, and Al2O3 compounds due to dry sliding leading to the formation of flakes and delamination induced debris. Against the steel counterbody, the coating mainly formed a typical smooth glossy surface ascribed to the formation of Fe2O3 compound on the worn surface.

show abstract

“…Krom oksit mükemmel sertliğe sahiptir ve diğer oksit seramiklerden daha iyi sürtünme, aşınma, oksidasyon ve korozyon direnci gösterir. Bu kaplamalar, makine, tekstil, otomotiv bileşenlerinde, mühendislik elemanlarının aşınma ömrünü artırmak için kullanılır [11][12][13][14]. Ayrıca, krom tozlarına eklenen titanya genellikle Cr2O3 kaplamaların biriktirme oranını ve bağlanma gücünü artırmak için kullanılır [15].…”

Section: Introductionunclassified

55TiO2-Cr2O3 Kaplamanın Frenleme Performansına Etkisinin Araştırılması

Mutlu

Güney

Ünal³

et al. 2020

Nevşehir Bilim Ve Teknoloji Dergisi

View full text Add to dashboard Cite

Bu çalışmada, 55TiO2-Cr2O3 (Metco111) seramik toz, atmosferik plazma püskürme (APS) kaplama tekniği ile dökme demir disk üzerine kaplanmıştır.Kaplamanın SAE J2430 frenleme test standardına göre sürtünme katsayısı davranışına etkisi incelenmiştir. 55TiO2-Cr2O3kaplanmış ve kaplanmamış diskin mekanik ve mikro yapısal karakterizasyonu araştırılmıştır. Sıcaklık ve hızın artmasıyla birlikte, sürtünme katsayısı (COF) ve aşınma oranı azalmıştır. Kaplanmış ve kaplanmamış yüzeyler taramalı elektron mikroskobuyla (SEM), ışık mikroskobu (LM) ile incelenip enerji dispersif spektrometresi (EDS) yardımıyla analiz edilmiştir. Numunelerin yüzey pürüzlülüğü ve mikro sertlik testleri yapılmıştır. Krom ve Titanyum'ca zengin kaplamalarda yük ve sıcaklığın artmasıyla Cr, Ti yağlayıcı film olarak görev yaptığından kaplamanın sürtünme katsayısı ve aşınma oranı kaplamasız diskten düşük çıkmıştır. Kaplamalı diskin daha düşük aşınması, titanyum ve krom oksitlerin oluşturduğu yüzey filminin sert yapısına ve yağlayıcılık özelliğine bağlanmıştır. Mikro yapı analizlerinden kaplamanın metalürjik olarak problemsiz olduğu tespit edilmiştir.

show abstract

Effect of relative humidity and applied loads on the tribological behaviour of a steel/Cr2O3-ceramic coupling

Cited by 12 publications

References 26 publications

Friction energy map for sliding wear of Al₂O₃-TiO₂ and Cr₂O₃-TiO₂ coatings

Friction energy map for sliding wear of Al₂O₃-TiO₂ and Cr₂O₃-TiO₂ coatings

Wear assessment of Cr₂O₃‐/TiAlN‐coated DAC‐10 tool steel against steel and Al₂O₃ counterbodies

55TiO2-Cr2O3 Kaplamanın Frenleme Performansına Etkisinin Araştırılması

Contact Info

Product

Resources

About

Effect of relative humidity and applied loads on the tribological behaviour of a steel/Cr2O3-ceramic coupling

Cited by 12 publications

References 26 publications

Friction energy map for sliding wear of Al2O3-TiO2 and Cr2O3-TiO2 coatings

Friction energy map for sliding wear of Al2O3-TiO2 and Cr2O3-TiO2 coatings

Wear assessment of Cr2O3‐/TiAlN‐coated DAC‐10 tool steel against steel and Al2O3 counterbodies

55TiO2-Cr2O3 Kaplamanın Frenleme Performansına Etkisinin Araştırılması

Contact Info

Product

Resources

About

Friction energy map for sliding wear of Al₂O₃-TiO₂ and Cr₂O₃-TiO₂ coatings

Friction energy map for sliding wear of Al₂O₃-TiO₂ and Cr₂O₃-TiO₂ coatings

Wear assessment of Cr₂O₃‐/TiAlN‐coated DAC‐10 tool steel against steel and Al₂O₃ counterbodies