Optimizing wear resistance of ceramic (TiN, WC and TiC) clad layer by gas tungsten arc welding (GTAW)

2014 ◽  
Vol 66 (3) ◽  
pp. 452-458 ◽  
Author(s):  
De-Xing Peng
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Arc Welding ◽  
Wear Test ◽  
Gas Tungsten Arc Welding ◽  
Content Type ◽  
Gas Tungsten Arc ◽  
Clad Layer ◽  
Pin On Disc ◽  
Gas Tungsten

Purpose – This paper aims to compare the wear performance of carbon steel specimens clad with TiC, WC and TiN powders by the gas tungsten arc welding (GTAW) method under optimum processing conditions. Design/methodology/approach – Various ceramic powders (TiC, WC and TiN) with equal percentages by weight were prepared for use as cladding materials to compare their effects on wear resistance. The wear behaviors of different cladding specimens were evaluated with a rotating-type tribometer under dry sliding conditions. The cladding microstructures were characterized by optical microscopy, scanning electron microscopy and X-ray energy dispersive spectrometry. Findings – The experimental results confirmed that the hardness was also much higher in the carbon steel with cladding than in carbon steel without cladding. The pin-on-disc wear test showed that the wear-resistance of ceramics clad with TiC is better than that in ceramics clad with WC or TiN. The wear scar area of the specimen with TiC cladding was only one-tenth that of carbon steel without cladding. Originality/value – The experiments confirm that the cladding surfaces of ceramic particles reduce wear rate and friction.

Microstructure, Mechanical and Corrosion Behaviour of Dissimilar Weldments between AISI 304 Stainless Steels and AISI 1020 Carbon Steels Produced by Gas Tungsten Arc Welding Using Different Consumables

2009 ◽  
Vol 410-411 ◽  
pp. 533-541 ◽  
Author(s):  
W. Chuaiphan ◽  
Somrerk Chandra-ambhorn ◽  
B. Sornil ◽  
Wolfgang Bleck
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Chemical Compositions ◽  
Aisi 316L ◽  
Aisi 304 ◽  
Gas Tungsten Arc ◽  
Weld Metals ◽  
Gas Tungsten

Gas tungsten arc welding was applied to join AISI 304 stainless steel and AISI 1020 carbon steel sheets with three types of consumables – AISI 308L, AISI 309L and AISI 316L stainless steel wires. Weld metals produced by all consumables exhibited the identical hardness of ca. 350 HV. This value was higher than those of stainless steel and carbon steel base metals, indicating the relatively high strength of weld metals. The corrosive behaviour of weld metals was investigated by a potentiodynamic method. Specimens were tested in 3.5 wt% NaCl solution saturated by laboratory air at 27°C. A pitting potential of weld metal produced by the AISI 309L consumable was higher than those of weld metals produced by the AISI 308L and AISI 316L consumables respectively. The chemical compositions and microstructure of weld metals were also investigated. The pitting corrosion resistance of weld metals produced by different consumables is discussed in the paper in terms of the pitting resistance equivalent number (PREN) calculated from the chemical compositions and the content of delta ferrite in the austenite matrix of the weld metals.

scholarly journals Monitoring of Welding Process Parameters in Gas Tungsten Arc Welding of Carbon Steel Weldments

Mechanika ◽  
2019 ◽  
Vol 25 (1) ◽  
Author(s):  
Regita BENDIKIENE ◽  
Saulius BASKUTIS ◽  
Jolanta BASKUTIENE ◽  
Lina KAVALIAUSKIENE
Keyword(s):  
Carbon Steel ◽  
Process Parameters ◽  
Arc Welding ◽  
Welding Process ◽  
Gas Tungsten Arc Welding ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

Microstructure and Wear Characteristics of Fe-Based Hard-Facing Alloy Claddings Formed by Gas Tungsten Arc Welding

2012 ◽  
Vol 706-709 ◽  
pp. 3028-3033 ◽  
Author(s):  
C.M. Lin ◽  
W. Wu
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Arc Welding ◽  
Martensite Phase ◽  
Gas Tungsten Arc Welding ◽  
Abrasive Wear Resistance ◽  
Cladding Layer ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Cladding Layers

The current investigation discusses the effect of Mn and Si contents on the microstructure and abrasive wear characteristic in Fe-based hard-facing alloy. A series of Fe-based hard-facing alloys are successfully fabricated onto the S45C steel by gas tungsten arc welding (GTAW). Results reveal that microstructure contains great amounts of martensite phases and moderate amounts of austenite phases. Si element added into Fe-based hard-facing alloy can not obviously affect the properties of the claddings, such as martensite phase, hardness, and abrasive wear resistance. Nevertheless, Mn element added into Fe-based hard-facing alloy can efficiently affect the martensite phase, hardness, and abrasive wear resistance of the claddings. The martensite contents decreases with the increasing of Mn contents in the cladding layers. The hardness increases as the Mn contents decreases, because the martensite contents increases. The abrasive wear resistance is not only related to the hardness of the cladding layer but the martensite contents of the cladding layer. The abrasive wear resistance is an inverse proportion to Mn contents of the cladding layers. Especially, the cladding layers containing 1.4Si-0.3Mn has the highest hardness of HRC 60.1 and the lowest wear loss of 0.37g.

Application of 23 Factorial Design Experiments for Gas Tungsten Arc Welding Parameters on ASTM A36 Steel Welds

2012 ◽  
Vol 246-247 ◽  
pp. 707-711
Author(s):  
Prachya Peasura
Keyword(s):  
Carbon Steel ◽  
Arc Welding ◽  
Welding Current ◽  
Gas Tungsten Arc Welding ◽  
Welding Parameters ◽  
Tungsten Electrode ◽  
Current Electrode ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
And Tungsten

ASTM A36 carbon steel is the most commonly available of the hot-rolled steels. This specification covers carbon steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes. The research was to study the in effected of gas tungsten arc welding parameters which effects the hardness and physical characteristics of welding for carbon steel ASTM A36. The specimen was carbon steel sheet metal 6 mm thick. The 23 factors experiment was used polarity direct current electrode negative (DCEN) and alternating current (AC), welding current at 90 and100 amperes with tungsten electrode angles at 30 and 60degree. The weld sample was test by hardness and penetration. The result showed that polarity, welding current and tungsten electrode angle had on interaction on hardness and penetration at 95% confidence (p-value < 0.05).The factors made maximum hardness was polarity AC, welding current 100 amp. and tungsten angle 60๐of 803.16 HV. The factors made maximum penetration was polarity DCEN, welding current 100 amp. and tungsten angle 60๐ of 2.71mm. The research data can be used to determine the appropriate gas tungsten arc welding process of carbon steel weld.

Microstructure and tribological properties of gas tungsten arc clad TiC composite coatings on carbon steel

2014 ◽  
Vol 66 (5) ◽  
pp. 609-617 ◽  
Author(s):  
De-Xing Peng ◽  
Yuan Kang ◽  
Yu-Jun Huang
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Wear Behavior ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Carbon Steels ◽  
Dry Sliding Wear ◽  
Content Type ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

Purpose – The purpose of this paper is to evaluate the wear performance of carbon steel cladded with TiC powders by gas tungsten arc welding method. Because of poor wear resistance, carbon steels have limited industrial applications as tribological components. Design/methodology/approach – The cladding microstructures were characterized by optical microscope, scanning electron microscope (SEM) and X-ray energy dispersive spectrometer. The wear behavior of the clad layer was studied with a block-on-ring tribometer. Findings – The experimental results revealed that the metallurgical interface provided an excellent bond between the cladding and the carbon steel substrate. The cladding revealed no porosity or cracking, and particles were evenly distributed throughout the cladding layer. Hardness was increased from HRc 6.6 in the substrate to HRc 62 in the cladded layer due to the presence of the hard TiC phase. Originality/value – The experiments confirm that the cladding surfaces of TiC particles reduce wear rate and friction. Increasing TiC contents also improves hardness and wear resistance at room temperature and under dry sliding wear conditions.

Microstructure, Hardness and Corrosion Behavior of Gas Tungsten Arc Welding Clad Inconel 625 Super Alloy over A517 Carbon Steel Using ERNiCrMo3 Filler Metal

2020 ◽  
Vol 29 (10) ◽  
pp. 6919-6930
Author(s):  
Farhad Ostovan ◽  
Ehsan Hasanzadeh ◽  
Meysam Toozandehjani ◽  
Ehsan Shafiei ◽  
Khairur Rijal Jamaluddin ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Arc Welding ◽  
Filler Metal ◽  
Gas Tungsten Arc Welding ◽  
Inconel 625 ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Super Alloy

Effect of current pulsing on super 304HCu weld joints

2019 ◽  
Vol 16 (6) ◽  
pp. 814-822
Author(s):  
Vinoth Kumar M. ◽  
Balasubramanian V.
Keyword(s):  
Tensile Properties ◽  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Constant Current ◽  
Delta Ferrite ◽  
Content Type ◽  
Weld Joints ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Super Austenitic Stainless Steel

Purpose Super 304HCu super austenitic stainless steel tubes containing 2.3 to 3 (Wt.%) of copper (Cu) is used in superheaters and reheater tubings of nuclear power plants. In general, austenitic stainless steels welded by conventional constant current gas tungsten arc welding (CC-GTAW) produce coarse columnar grains, alloy segregation and may result in inferior mechanical properties. Pulsed current gas tungsten arc welding (PC-GTAW) can control the solidification structure by altering the prevailing thermal gradients in the weld pool. Design/methodology/approach Super 304HCu tubes of Ø 57.1 mm and the wall thickness of 3.5 mm were autogenously welded using CC and PC-GTAW processes. Joints are characterized using optical microscopy, electron microscopy, energy dispersive spectroscopy and electron backscatter diffraction (EBSD) techniques. Hot tensile properties of the weld joints were evaluated and correlated with their microstructural features. Findings Current pulsing in GTAW has resulted in minimal eutectic film segregation, lower volume % of delta ferrite and appreciable improvement in tensile properties than CC-GTAW joints. Originality/value The EBSD boundary map and inverse pole orientation map of Super 304HCu weld joints evidence the grain refinement and much frequent high angle grain boundaries achieved using weld current pulsing.

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