Mass loss and wear mechanisms of HVOF-sprayed multi-component white cast iron coatings

Maranho, Ossimar; Rodrigues, Daniel; Boccalini, M.; Sinatora, Amilton

doi:10.1016/j.wear.2011.08.024

Cited by 12 publications

(6 citation statements)

References 19 publications

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“…For HVOF process, other aspects are more important, especially the amount of porous and the continuity of coating-substrate interface. Both effects were already described elsewhere for Fe-based HVOF coatings [10]. The heat treating reduces the amount of porous, clearly observed in the Figure 1.…”

Section: Wear Performancesupporting

confidence: 73%

“…Following this trend, nickel aluminides were employed as raw material for HVOF-sprayed [8] and PTA-welded coatings [9]. The abrasive wear resistance of HVOF-sprayed coatings can be improved after heat treatments [10]. On the other hand, when nickel aluminides coatings deposited by PTA are subject to heat treatments their microstructural stability can be decisive to perform reasonably [11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Abrasion Resistance of Nickel Aluminide Coatings Deposited by Hvof and Pta Processes

Benegra¹,

Pintaúde²,

Maranho³

et al. 2014

ABM Proceedings

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This study aims to compare the wear resistance assessed in rubber wheel abrasion test of nickel aluminide coatings deposited by for Plasma Transferred Arc (PTA) and High Velocity Oxigen Fuel (HVOF) manufacturing, using the same raw material. A nickel aluminide powder was atomized and deposited on 316L steel plate substrate. After deposition, some specimens were submitted to a heat treating (1200 °C for 24 h followed by 760°C for 24 h). The coatings deposited using PTA developed different microstructures due to the incorporation of substrate elements, its performance was better than the HVOF coatings, although their Vickers hardness was similar. After heat treating, a significant variation in hardness and wear resistance was observed. For PTA specimens, there were decrease in hardness of 35%, while for HVOF ones this drop was approximately 20%. Nonetheless, the effect of thermal exposure in wear resistance was quite different: an increase of 21% was observed for HVOF coatings, while a reduction of 20% occurred in PTA ones. Microstructures modifications in PTA coatings were significant for their wear resistance. On the other hand, the reduction of porosity and sintering were responsible for a better performance of heat-treated HVOF coatings.

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Section: Wear Performancesupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Abrasion Resistance of Nickel Aluminide Coatings Deposited by Hvof and Pta Processes

Benegra¹,

Pintaúde²,

Maranho³

et al. 2014

ABM Proceedings

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show abstract

“…During the spray of water on the slab, the mixture of scale and water are formed. When this mixture come in contact with the slab and roller, it forms three-body abrasion, which is very much similar to ASTM G105 standard [2,22,23]. The parameters used during wear tests are specimen size (25.4 ± 0.8 mm) x (57.2 ± 0.8 mm) x (6.4 to 15.9 mm), Test load 222N, Test time 1000 revolutions, RPM 245 rpm, Sand AFS 50/70.…”

Section: Methodsmentioning

confidence: 61%

Investigations on Wear Behaviour of AISI 4140 Hot Strip Mill Roller Hardfaced with Martensitic Stainless Steel by Submerged Arc Welding Process

Patel¹,

Wanare²,

Калыанкар³

2021

Tribol. Ind.

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“…During the 2010's, further studies were conducted in LFS on sintered materials (SPS) [243], modelling of tribological phenomena [244][245][246], wear mode transitions [247,248] and abrasion, with emphasis on fundamentals of abrasive processes [249,250], abrasionresistant materials [251,252], and micro-abrasion tests [87, 253,254]. Other topics included the tribological behaviour of plasma-sprayed coatings [255] and water lubrication of ceramic materials [256]. For the tribological behaviour of rolling mill rolls [257], studies were combined with different aspects of forging to provide a broader view of hot-forming tools.…”

Section: Brazilian Tribology: Status Quomentioning

confidence: 99%

Brazilian Tribology: origin, status quo and future perspectives

de Mello,

Costa

2023

Surf. Topogr.: Metrol. Prop.

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This first regional issue published in STMP highlights the potential and importance of the research carried out in Latin America regarding surface engineering and tribology. In order to celebrate this important initiative, a complete historical account of Brazilian tribology is presented for the first time. It initiates with the first steps of Brazilian tribology in the 1980s, followed by the evolution and expansion of tribology research both in academic centres and industry. Focus is given to two outstanding achievements of Brazilian tribology: the fully flexible engines that run at any proportion of ethanol and gasoline and a fully innovative, completely oil-less family of hermetic compressors. The status-quo of the current research groups on tribology is described. Finally, the future trends envisaged by the Brazilian tribology community are presented.

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Mass loss and wear mechanisms of HVOF-sprayed multi-component white cast iron coatings

Cited by 12 publications

References 19 publications

Abrasion Resistance of Nickel Aluminide Coatings Deposited by Hvof and Pta Processes

Abrasion Resistance of Nickel Aluminide Coatings Deposited by Hvof and Pta Processes

Investigations on Wear Behaviour of AISI 4140 Hot Strip Mill Roller Hardfaced with Martensitic Stainless Steel by Submerged Arc Welding Process

Brazilian Tribology: origin, status quo and future perspectives

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