Wear and microstructural properties of coatings on Weldox 700 steel

Özorak, Cihan; Okay, Faik; Özorak, Ebru; Islak, Serkan

doi:10.3139/120.111526

Cited by 6 publications

(1 citation statement)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been widely applied to various hard-coating materials including tungsten carbide (WC) and chromium-based alloys on various substrates as listed in Table 1. According to these reports, WC-based coatings produced by HVOF are particularly effective to improve mechanical properties of work surfaces including hardness, wear resistance, porosity, splat cohesion, coating boundary flaws, fracture toughness and elastic modulus (Tillmann et al , 2010; Utu et al , 2013; Özorak et al , 2020). In particular, the WC–12Co HVOF coatings created with fine feedstock powder exhibited much lower friction coefficient and wear rate compared with uncoated roughened mild steel surfaces and HVOF Cr 3 C 2 –25(Ni20Cr) coatings owing to extremely dense, fine and homogenous structures as well as excellent interfacial bonding with mild steel substrates (Tillmann et al , 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Khuengpukheiw

Wisitsoraat

Saikaew

2023

WJE

View full text Add to dashboard Cite

Purpose This paper aims to compare the wear behavior, surface roughness, friction coefficient and volume loss of high-velocity oxy-fuel (HVOF) sprayed WC–Co and WC–Cr3C2–Ni coatings on AISI 1095 steel with spraying times of 10 and 15 s. Design/methodology/approach In this study, the pin-on-disc testing technique was used to evaluate the wear characteristics at a speed of 0.24 m/s, load of 40 N and test time of 60 min under dry conditions at room temperature. The wear characteristics were examined and analyzed by scanning electron microscopy and energy dispersive X-ray spectroscopy. The surface roughness of a coated surface was measured, and microhardness measurements were performed on the cross-sectioned and polished surfaces of the coating. Findings Spraying time and powder material affected the hardness of HVOF coatings due to differences in the porosity of the coated layers. The average hardness of the WC–Cr3C2–Ni coating with a spaying time of 15 s was approximately 14% higher than that of the WC–Cr3C2–Ni coating with a spraying time of 10 s. Under an applied load of 40 N, the WC–Co coating with a spraying time of 15 s had the lowest variation in the friction coefficient compared with the other coatings. The WC–Co coating with a spraying time of 10 s had the lowest average and variation in volume loss compared to the other coatings. The WC–Cr3C2–Ni coating with a spraying time of 10 s exhibited the highest average volume loss. The wear features changed slightly with the spraying time owing to variations in the hardness and friction coefficient. Originality/value This study investigated tribological performance of WC–Co; WC-Cr3C2-Ni coatings with spraying times of 10 and 15 s using pin-on-disc tribometer by rotating the relatively soft pin (C45 steel) against hard coated substrate (disc).

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Khuengpukheiw

Wisitsoraat

Saikaew

2023

WJE

View full text Add to dashboard Cite

show abstract

Investigation of the friction behavior of plasma spray Mo/NiCrBSi coated brake discs

Kılıç¹,

Misirli²,

Mutlu³

2021

Materials Testing

View full text Add to dashboard Cite

This paper presents the findings of comparative research conducted to find out the braking performance of a Mo/NiCrBSi coated automobile brake disc. The friction and wear behavior of the Mo/NiCrBSi coating (CD) used for the disc material was evaluated using a laboratory scale disc-pad dynamometer and compared with a reference disc (RD). The coating was deposited by means of the atmospheric plasma spray process on a grey cast iron substrate. Braking tests were performed according to the SAE-J2430 test standard. Disc microstructures were characterized by SEM and XRD. It was found that the bonding strength was good with an infinite rating between the accumulated coating layer and the substrate. The results show that the coated brake disc has a comparable coefficient of friction and that the amount of wear is lower than that of the reference disc. The addition of ductile phases to the disc coating was beneficial in reducing the coefficient of friction to an acceptable degree and also effectively improving wear resistance.

show abstract

Steel shot peening effects on friction stir welded AA2014-T6 aluminum alloys

Mallieswaran¹,

Rajasekaran²,

Kumar

et al. 2022

Materials Testing

View full text Add to dashboard Cite

The high-strength aluminum alloy is the potential candidate to replace conventional materials. It has excellent corrosion-resistant, recyclable machinability. The joining of such a type of alloy using fusion welding is very difficult. Solid-state welding, friction stir welding (FSW) has been used. However, this process has attained a maximum joint of 90% of base material strength. The drop of remaining strength is due to the formation of the temperate region in the thermo-mechanically affected area. Most of the researchers have been reported that the failure has observed at the interface. Many techniques have been followed to improve the strength at the temperate region, namely, post-weld heat treatment, backing plate change, sheet position, tool offset, etc. In this study, the shot blasting technique has been used to improve the lost strength in the soft region. From the experimental result, the joint shot-peened with steel shot yielded higher strength than the classical friction stir welded (C-FSW) joints. Moreover, the stability of the shot-peened joint has been conceived 6.9% more than the C-FSW joint.

show abstract

Wear and microstructural properties of coatings on Weldox 700 steel

Cited by 6 publications

References 46 publications

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Investigation of the friction behavior of plasma spray Mo/NiCrBSi coated brake discs

Steel shot peening effects on friction stir welded AA2014-T6 aluminum alloys

Contact Info

Product

Resources

About

Wear and microstructural properties of coatings on Weldox 700 steel

Cited by 6 publications

References 46 publications

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr3C2Ni coatings on AISI 1095 steel

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr3C2Ni coatings on AISI 1095 steel

Investigation of the friction behavior of plasma spray Mo/NiCrBSi coated brake discs

Steel shot peening effects on friction stir welded AA2014-T6 aluminum alloys

Contact Info

Product

Resources

About

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel