The surface modified composite layer formation with boron carbide particles on magnesium alloy surfaces through pulse gas tungsten arc treatment

2007 ◽  
Vol 253 (8) ◽  
pp. 3877-3883 ◽  
Author(s):  
W.B. Ding ◽  
H.Y. Jiang ◽  
X.Q. Zeng ◽  
D.H. Li ◽  
S.S. Yao
Keyword(s):  
Magnesium Alloy ◽  
Boron Carbide ◽  
Composite Layer ◽  
Layer Formation ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Surface Modified ◽  
Carbide Particles

Mechanical Behavior of Gas Tungsten Arc Surface Modified Composite Layer on Mg Alloy AZ31 with SiCp and Aluminum

2007 ◽  
Vol 546-549 ◽  
pp. 485-490
Author(s):  
Hai Yan Jiang ◽  
Wen Bin Ding ◽  
Xiao Qin Zeng ◽  
De Hui Li ◽  
Shou Shan Yao
Keyword(s):  
Wear Resistance ◽  
Magnesium Alloy ◽  
Grain Refinement ◽  
Composite Layer ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Gas Tungsten Arc ◽  
Sic Particles ◽  
Gas Tungsten ◽  
Surface Modified

Gas tungsten arc (GTA) surface modification process was used to deposit SiC particles and aluminum alloy powders on the surface of magnesium alloy AZ31. This method is an effective technique in producing a high performance composite layer. This process result notable grain refinement in the GTA surface modified composite layer. The hardness and wear resistance of the GTA surface modified composite layer are superior to that of as-received magnesium alloy AZ31. The hardness values and wear resistance of GTA surface modified composite layer depend on the GTA process parameters and the SiC particles powder concentration and distribution. The optimum processing parameters for the formation of a homogeneous crack/defect-free and grain refinement microstructure were established.

INVESTIGATION OF PULSE FREQUENCY ON FUSION ZONE CHARACTERISTICS OF GTA WELDED AZ31B MAGNESIUM ALLOY JOINTS

2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Subravel V
Keyword(s):  
Magnesium Alloy ◽  
Tensile Properties ◽  
Fusion Zone ◽  
Welding Speed ◽  
Pulse Frequency ◽  
Pulsed Current ◽  
Az31b Magnesium Alloy ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Different Levels

In this investigation an attempt has been made to study the effect of welding on fusion characteristics of pulsed current gas tungsten arc welded AZ31B magnesium alloy joints. Five joints were fabricated using different levels of welding speed (105 mm/min –145 mm/min). From this investigation, it is found that the joints fabricated using a welding speed of 135 mm/min yielded superior tensile properties compared to other joints. The formation of finer grains and higher hardness in fusion zone and uniformly distributed precipitates are the main reasons for the higher tensile properties of these joints

Numerical simulation for pulsed laser–gas tungsten arc hybrid welding of magnesium alloy

2018 ◽  
Vol 25 (9) ◽  
pp. 995-1002 ◽  
Author(s):  
Zhong-lin Hou ◽  
Li-ming Liu ◽  
Xin-ze Lv ◽  
Jun Qiao ◽  
Hong-yang Wang
Keyword(s):  
Numerical Simulation ◽  
Magnesium Alloy ◽  
Pulsed Laser ◽  
Hybrid Welding ◽  
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

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.

Sign in / Sign up

Export Citation Format

Share Document