Wear behaviour of laser cladded and plasma sprayed WCCo coatings

Cadenas, M.; Vijande, R.; Montès, H.; Sierra, José Manuel Osoro

doi:10.1016/s0043-1648(97)00127-0

Cited by 62 publications

(26 citation statements)

References 5 publications

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“…10 The friction coefficient of WC-Co and (W, Ti)C-Ni coatings against 1044 grade steel varies in the range of 0.3-0.5 and 0.3-0.6, respectively, under sliding velocity of 4 ms −1 and normal load of 4.9 N. 11 Cadenas et al observed that the lubricated wear rate of AISI 1043 steel is 50-300 times as high as that of the WC-Co plasma sprayed coatings. 12 In one of our recent work, the fretting wear properties of TiCN-WC-Ni cermet with varying WC content (0-25 wt.%) is studied and the observed friction value varies within the range of 0.3-0.38. 13 The wear resistance decreases with increasing WC content (>5 wt.%).…”

Section: Introductionmentioning

confidence: 99%

Pressureless sintering and tribological properties of WC–ZrO2 composites

Basu

Venkateswaran

Sarkar

2005

Journal of the European Ceramic Society

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Section: Introductionmentioning

confidence: 99%

Pressureless sintering and tribological properties of WC–ZrO2 composites

Basu

Venkateswaran

Sarkar

2005

Journal of the European Ceramic Society

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“…In atmospheric plasma spraying (APS), one of many plasma spray methods [3], a coated layer is formed on a substrate surface by spraying melted powders onto a substrate at a high speed using a high-temperature plasma jet [4,5]. Powder grains are transported within a carrier gas at high temperature and high speed, injected into plasma jet.…”

Section: Introductionmentioning

confidence: 99%

“…Introduction Plasma-sprayed ceramic coatings are widely used for structural applications in order to improve resistances to wear, friction, corrosion, and oxidization [1,2]. In atmospheric plasma spraying (APS), one of many plasma spray methods [3], a coated layer is formed on a substrate surface by spraying melted powders onto a substrate at a high speed using a high-temperature plasma jet [4,5]. Powder grains are transported within a carrier gas at high temperature and high speed, injected into plasma jet.…”

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confidence: 99%

Characterization of Alumina-Titania Coatings Produced by Atmospheric Plasma Spraying on 304 SS Steel

2017

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The alumina-titania coatings produced by atmospheric plasma spraying are being developed for a wide variety of applications that require resistance to wear, erosion, cracking, and spallation. Consideration of parameters setting will develop reliable coatings with high performance properties for demanding coating application. Al2O3-3 wt% TiO2 was used as the main coating. Ni 20%Cr6Al powder was used as bond coat coating onto AISI 304 stainless steel substrate using Sulzer-Metco plasma spray system 9MC equipment. DOI: 10.12693/APhysPolA.132.538 PACS/topics: alumina-titania coatings, atmospheric plasma spraying, 304 stainless steel, process parameters, SEM, microstructure 1. Introduction Plasma-sprayed ceramic coatings are widely used for structural applications in order to improve resistances to wear, friction, corrosion, and oxidization [1,2]. In atmospheric plasma spraying (APS), one of many plasma spray methods [3], a coated layer is formed on a substrate surface by spraying melted powders onto a substrate at a high speed using a high-temperature plasma jet [4,5]. Powder grains are transported within a carrier gas at high temperature and high speed, injected into plasma jet. The melting powder is transferred to the substrate surface being coated and after impact; lamellar layer formation occurs [6][7][8]. Alumina (Al 2 O 3 ) and mixed alumina with titania are widely used in plasma sprayed as coating materials. The high hardness of alumina properties contributes to wear resistant coating and electrical insulation properties. Alumina is also highly thermal conductivity insulated for any substrate. Alumina with approximately 3 wt% titania is used extensively as wear resistance coating. The different coating microstructures and properties are depending on the spray technique, powder properties and spray parameters of the coating [9][10][11]. The coating conditions such as porosity, closed pores and unmelted particles are always the cause of defects in coatings. There are advanced tests or performance tests techniques of plasma sprayed ceramic coatings in order to determine the coating properties such as mechanical tests. A number of works for different purposes were also performed on different types of steel [12][13][14].In the present work, alumina-3 wt% titania coatings are deposited on AISI 304 stainless steel substrates with an intermediate bond coat of Ni20Cr6Al by atmospheric plasma spraying. The effects of the plasma variables setting such as the powder flow rate, current and standoff-distance on the microstructure and adhesion strength were investigated.

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“…Loss of WC via decarburization and dissolution in the binder metal forming variety of intermediate phases such as W 2 C, Co 3 W 3 C, Co 6 W 6 C, WC 1−x , etc. [2][3][4] is another serious concern of thermal spraying leading to deterioration of wear resistance [5]. However, laser cladding can provide thick, dense coatings with excellent metallurgical bonding with the substrate [6][7][8] leading to superior wear resistance than thermal spray coatings [5].…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4] is another serious concern of thermal spraying leading to deterioration of wear resistance [5]. However, laser cladding can provide thick, dense coatings with excellent metallurgical bonding with the substrate [6][7][8] leading to superior wear resistance than thermal spray coatings [5]. As with most thermal spraying techniques like plasma spraying, HVOF and detonation gun based processes, laser cladding could also to lead to WC dissolution and precipitation of other brittle phases depending on laser power, particle size, volume fractions, etc.…”

Section: Introductionmentioning

confidence: 99%