Improving Surface Hardness of Mild Steel Plates by Addition of Silicon Carbide Using Gas Tungsten Arc as Heat Source

2014 ◽  
Vol 592-594 ◽  
pp. 879-882 ◽  
Author(s):  
G. Harish Reddy ◽  
Sanjivi Arul ◽  
R. Sellamuthu
Keyword(s):  
Silicon Carbide ◽  
Heat Source ◽  
Mild Steel ◽  
Silicon Content ◽  
Composite Layer ◽  
Surface Hardness ◽  
Steel Plates ◽  
Gas Tungsten Arc ◽  
Hardness Property ◽  
Gas Tungsten

An attempt has been made to improve the surface hardness property of mild steel by developing a composite layer on the surface of mild steel using gas tungsten arc as heat source. Silicon Carbide was placed on the surface using a binder and heat was applied using gas tungsten arc. Variation of Silicon content with the weld current parameters was studied. The variation of microhardness with Silicon content on the surface was studied. Optimum parameter for attaining maximum surface hardness property using GTAW (Gas Tungsten Arc Welding) has been found.

Mechanism of surface modification of the Ti-6Al-4V alloy using a gas tungsten arc heat source

1999 ◽  
Vol 30 (6) ◽  
pp. 1597-1603 ◽  
Author(s):  
M. Labudovic ◽  
R. Kovacevic ◽  
I. Kmecko ◽  
T. I. Khan ◽  
D. Blecic ◽  
...  
Keyword(s):  
Surface Modification ◽  
Heat Source ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

Fabrication of Fe–Al2O3 Composite Layer on the Surface of Carbon Steel via Gas Tungsten Arc Cladding

2019 ◽  
Vol 55 (2) ◽  
pp. 130-137 ◽  
Author(s):  
Y. Shajari ◽  
E. Bahmani ◽  
A. Lori Amini ◽  
Z. S. Seyedraoufi ◽  
S. H. Razavi ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Composite Layer ◽  
Gas Tungsten Arc ◽  
Al2o3 Composite ◽  
Gas Tungsten

Study of the Effect of Active Fluxes in Gas Tungsten Arc Welding

2011 ◽  
Vol 189-193 ◽  
pp. 3579-3582
Author(s):  
Jian Hao ◽  
Zhen Luo ◽  
Xian Zheng Bu ◽  
Jian Wu Zhang
Keyword(s):  
Stainless Steel ◽  
Thin Layer ◽  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Steel Plates ◽  
Angular Distortion ◽  
Deep Penetration ◽  
Weld Penetration ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

In order to investigate the effect of active fluxes on weld penetration, angular distortion and weld morphology in gas tungsten arc welding (GTAW), three types of oxide fluxes-CaO, TiO2and Al2O3-were used in the welding of 5mm think stainless steel plates. Those powders were applied through a thin layer of the flux to produce a bead on plate welds. The results showed that compared with conventional TIG welding, increased weld penetration and reduced angular distortion of the weld piece were obtained with the application of active fluxes. However, the weld morphology was not changed significantly when the powders were coated on the surface of steel. It was also found that each of the powders has a fittest range in penetration increment. Whether the rate of the coating run out of the range, the effects of these active fluxes on the increased weld penetration were not obvious. The CaO flux has a narrow effective range for deep penetration, while the Al2O3powder does have no effect on A-TIG penetration. The mechanism of those different performances has not been found out. According to the investment, the mechanism of active fluxes for the increased weld penetration and reduced angular distortion is related to the contraction of the arc.

scholarly journals High speed welding of Friction-Stir-Welding for mild steel by Gas-Tungsten- Arc-Welding hybrid process

2018 ◽  
Vol 36 (1) ◽  
pp. 26-30 ◽  
Author(s):  
Itto SUGIMOTO ◽  
Seung Hwan C. PARK ◽  
Satoshi HIRANO ◽  
Satoshi HATA ◽  
Yutaka S. SATO ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Mild Steel ◽  
Arc Welding ◽  
High Speed ◽  
Gas Tungsten Arc Welding ◽  
Hybrid Process ◽  
Friction Stir ◽  
Gas Tungsten Arc ◽  
Gas Tungsten
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