Dry sliding wear behavior of TIG welding clad WC composite coatings

Buytoz, Soner; Ulutan, Mustafa; Yıldırım, Merve

doi:10.1016/j.apsusc.2005.02.088

Cited by 97 publications

(46 citation statements)

References 23 publications

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“…Similar to the trend found above, the hardness across the coating thickness in this case also does not follow any particular trend. This type of hardness pattern has been reported for other materials as well, such as WC coating deposited on 4340 steel via TIG [34]. A similar trend was also exhibited by hard coatings prepared by metal inert gas method (MIG) and spraying processes on SS 52 substrate [24].…”

Section: Variation In Microhardness With Travel Speedsupporting

confidence: 54%

Development of a TiC/Cr23C6 Composite Coating on a 304 Stainless Steel Substrate through a Tungsten Inert Gas Process

Hussain

Asmael

2017

Coatings

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Abstract:The aim of this study was to develop a composite coating on 304 stainless steel employing a TIG (tungsten inert gas) process. Ti wire cored with graphite powder was used as the means of coating material. The process parameters were controlled to develop a coating with optimum characteristics (i.e., hardness and wear resistance). The microstructure of the coating was analyzed with SEM and XRD. It was found that both the hardness and the wear resistance increase as the current increases, while both of these properties decrease as travelling speed increases. It was found that the coated samples with composite layers were harder than the substrate and can range up to 1100 HV, almost 4.5 times higher than the hardness of 304 stainless steel. Likewise, the wear resistance of the coating was observed to be 4.5 times higher than that of the substrate. The high performance of the coating, as revealed by microstructural analysis, was due to the formation of TiC and Cr 23 C 6 . The optimum conditions for producing the coating are thus proposed to include a 120 A current and a 3.17 mm/s travel speed.

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Section: Variation In Microhardness With Travel Speedsupporting

confidence: 54%

Development of a TiC/Cr23C6 Composite Coating on a 304 Stainless Steel Substrate through a Tungsten Inert Gas Process

Hussain

Asmael

2017

Coatings

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“…Ripples were also observed in previous work on both laser and TIG torch melted surfaces and were considered to be due to the fast freezing of the melt. 2,20,43 The first tracks melted had rougher surfaces than those melted later. This may be related to the pre-heating effect of the overlapping tracks.…”

Section: Methodsmentioning

confidence: 99%

Overlapping tracks processed by TIG melting TiC preplaced powder on low alloy steel surfaces

Mridha

Baker

2015

Materials Science and Technology

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An overlapping composite track coating was produced on a steel surface by preplacing an 0.5 mm thick layer of TiC powder and then melting using a TIG torch of constant energy input. The influence of the overlapping operation on preheating of the substrate, the dissolution of TiC particulates and the subsequent depth and hardness of the composite layer was analysed. The melt microstructure consisted of both undissolved and partially dissolved TiC particulates, together with a variety of morphologies and sizes of TiC particles precipitated during solidification. Preheating, resulting from the overlapping operation occurred, producing additional melting of the TiC particulates and deeper melt depths but with a reduced volume fraction of TiC precipitates in the subsequent tracks. A maximum hardness of over 800 Hv was developed in the composite layer. The high hardness was unevenly distributed in tracks melted at the initial and final stages, while it varied across the melt depths in other tracks.

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“…[1][2][3][4][5][6][7][8] However, application of these techniques is limited in practice because of the high costs of the equipment. Previous surface engineering work using the tungsten inert gas (TIG) welding torch melting technique, [9][10][11][12][13][14][15][16][17][18][19] produced either a small hemispherical volume of a modified surface, or a single melt track with a width of a few millimetres running the length of the specimen. However, in many service applications there is frequently a requirement to modify a much greater surface area.…”

Section: Introductionmentioning

confidence: 99%

Melting of multipass surface tracks in steel incorporating titanium carbide powders

Mridha

Idriss

Maleque

et al. 2015

Materials Science and Technology

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Overlapping tracks were processed by melting preplaced titanium carbide (TiC) powder on steel surfaces using a tungsten inert gas torch. The tracks produced ~1.0 mm melt depth free from cracks, but occasional pores were observed. The microstructure consisted of unmelted and partially melted TiC particulates together with reprecipitated TiC particles, which were prominent in tracks processed in the initial stage. A greater number of reprecipitated globular and cubic TiC particles were observed in tracks processed in the later stages, indicating more dissolution of TiC particulates from the overlapping operation. Those multitracks processed in the initial stage developed a maximum hardness of 850-1000 HV, which was lower in most other tracks, although comparable hardness values were recorded in the last track.

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Dry sliding wear behavior of TIG welding clad WC composite coatings

Cited by 97 publications

References 23 publications

Development of a TiC/Cr23C6 Composite Coating on a 304 Stainless Steel Substrate through a Tungsten Inert Gas Process

Development of a TiC/Cr23C6 Composite Coating on a 304 Stainless Steel Substrate through a Tungsten Inert Gas Process

Overlapping tracks processed by TIG melting TiC preplaced powder on low alloy steel surfaces

Melting of multipass surface tracks in steel incorporating titanium carbide powders

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