Microstructure Characterization of WCCo-Mo Based Coatings Produced Using High Velocity Oxygen Fuel

Islak, Serkan; Kır, Durmuş; Buztoy, Soner; Özorak, Cihan; Akkaş, Mehmet; Çalıgülü, Uğur; Yıldırım, Merve

doi:10.5505/pajes.2015.56933

Cited by 5 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As surface coating methods, hard filling processes such as plasm transferred arc welding (PTA) and gas tungsten arc welding (GTAW) were used with the help of thermal sparying methods such as high velocity oxy fuel (HVOF), atmospheric plasma spraying (APS) and flame sparying(FS) [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Welding Parameters on Wear Performance of Boron Coating Made With Pta

Kiliç

2020

European Journal of Technic

View full text Add to dashboard Cite

It is inevitable that wear on the surfaces occur when especially metal surfaces contact each other. One of the most crucial problems among surface machining is wear problem. In this study, surface of 316 L stainless steel was coated with boron via plasma arc method and 160, 165 and 170 current values were utilized as welding parameters.The effect of the energy input on microstructure and on the abrasion resistance of the hard structures formed in the coating region was investigated.It was determined from optical microscope and SEM analysis that the coating area consisted of branched and leaf-shaped dendritics; and eutectic structures were formed between these dendritics. As a result of EDX taken from coated region, Fe, B and Cr elements were found. After wear test, low mass loss was determined in samples coated with Boron 2 and it is clear that coating os Boron on 316 L stainless steel substrate is increased wear resistance. While the highest weight loss was occurred in 316 L satinless steel with 45 mg and the lowest weight loss was obtained from Boron 2 sample with 27 mg.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Welding Parameters on Wear Performance of Boron Coating Made With Pta

Kiliç

2020

European Journal of Technic

View full text Add to dashboard Cite

show abstract

Study of High-Velocity Oxy-fuel Coating Technique and Fe-Based High-Velocity Oxy-fuel Coatings

Sharma

Mahajan

Mohan

2022

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

The mechanical and corrosion properties of WCCo–Al coatings formed on AA2024 using the HVOF method

Akkaş

2020

Mater. Res. Express

View full text Add to dashboard Cite

This paper investigates the microstructural, mechanical, and electrical-conductivity properties of WCCo–Al composite coatings produced on the Al alloy AA2024 using the high-velocity oxygen fuel (HVOF) thermal-spray method. In an experimental study, the amount of WCCo added to Al powders was varied between 25, 50, 75, and 100 wt%. The AA2024 used as the substrate material was cleaned in acetone solution and then subjected to a sanding process using Al2O3 sand that had a grain size of 24–35 mesh for improved bonding of the coating layer. Nitrogen was used as the powder-carrier gas. After the coating process, the substrates were cooled using high-pressure air jets. The coated samples were then compared in terms of their microstructure, phase composition, microhardness, electrical conductivity, and wear properties. The microstructure, phase composition, and surfaces of the coatings after abrasion were examined using a scanning electron microscope (SEM) and an x-ray diffractogram (XRD). The XRD results showed that the WCCo–Al coating layer was composed of Al, Al0.52Co0.48, Al30Mg23, Al0.47Co0.53, MgCuAl2, WCu2Al8, AlCo, Al12W, and BNi2 phases. The addition of WCCo increased the hardness of the coatings. For instance, the highest hardness value was measured as 1,335 HV0.2 in the coating produced using 100% WCCo. The amount of WCCo in the powder also affected the microstructure, phase composition, and hardness of the coatings. Moreover, the addition of WCCo lowered the electrical conductivity, wear rates, and friction coefficients of the coatings. In indentation tests, the hardness values of the coatings were generally found to increase with increasing applied load. In corrosion tests, the corrosion resistance of the coatings was observed to increase as the amount of WCCo in the coating layer increased. The highest peak depth was 36.94 μm in the sample coated with 100% Al, and the lowest peak depth was 6.82 μm in the sample coated with 100% WCCo. The coated materials had outstanding tribological performance compared to the uncoated ones. The increase in wear resistance provided by the coating was caused by a large amount of dispersed WC and Co.

show abstract

Microstructure Characterization of WCCo-Mo Based Coatings Produced Using High Velocity Oxygen Fuel

Cited by 5 publications

References 4 publications

Effect of Welding Parameters on Wear Performance of Boron Coating Made With Pta

Effect of Welding Parameters on Wear Performance of Boron Coating Made With Pta

Study of High-Velocity Oxy-fuel Coating Technique and Fe-Based High-Velocity Oxy-fuel Coatings

The mechanical and corrosion properties of WCCo–Al coatings formed on AA2024 using the HVOF method

Contact Info

Product

Resources

About