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Effect of SiO2 flux on the depth of penetration, microstructure, texture and mechanical behavior of AA6063 T6 aluminum alloy using activated TIG welding

Rajiv Kumar S.C. Vettivel Harmesh Kumar Kansal
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | No. 1 | e136215 | DOI: 10.24425/bpasts.2020.136215
Keywords aluminum alloy depth of penetration tensile strength texture
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Abstract

Activated tungsten inert gas (ATIG) welding has a good depth of penetration (DOP) as compared to the conventional tungsten inert gas (TIG) welding. This paper is mainly focused on ATIG characterization and mechanical behavior of aluminum alloy (AA) 6063-T6 using SiO2 flux. The characterization of the base material (BM), fusion zone (FZ), heat affected zone (HAZ) and, partially melted zone is carried out using the suitable characterization methods. The weld quality is characterized using ultrasonic-assisted non-destructive evaluation. A-scan result confirms that the ATIG welded samples have more DOP and less bead width as compared to conventional TIG. The recorded tensile strength of ATIG with SiO2 is better than the conventional TIG welding. The failure mode is ductile for ATIG welding with larger fracture edges and is brittle in the case of conventional TIG welding.

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Bibliography

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Authors and Affiliations

Rajiv Kumar
1
S.C. Vettivel
2
Harmesh Kumar Kansal
1
  1. Department of Mechanical Engineering, UIET, Panjab University, Chandigarh, India
  2. Department of Mechanical Engineering, Chandigarh College of Engineering and Technology (Degree Wing), Chandigarh, India

Microstructural, electrical, thermal and tribological studies of copper-fly ash composites through powder metallurgy

Thanga Kasi Rajan S. P. Narayanasamy A.N. Balaji S.C. Vettivel
Bulletin of the Polish Academy of Sciences Technical Sciences | 2018 | 66 | No 6 (Special Section on Deep Learning: Theory and Practice) | 935-940 | DOI: 10.24425/bpas.2018.125941
Keywords copper composites fly ash electrical and thermal conductivity wear test
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Authors and Affiliations

Thanga Kasi Rajan S.
P. Narayanasamy
A.N. Balaji
S.C. Vettivel

Optimization of tribology parameters of AZ91D magnesium alloy in dry sliding condition using response surface methodology and genetic algorithm

M. Beniyel M. Sivapragash S.C. Vettivel P. Senthil Kumar K.K. Ajith Kumar K. Niranjan
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | No. 1 | e135835 | DOI: 10.24425/bpasts.2021.135835
Keywords magnesium alloy pin-on-disc tribology dry condition optimization casting
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Abstract

In the present research, the wear behaviour of magnesium alloy (MA) AZ91D is studied and optimized. MA AZ91D is casted using a die-casting method. The tribology experiments are tested using pin-on-disc tribometer. The input parameters are sliding velocity (1‒3 m/s), load (1‒5 kg), and distance (0.5‒1.5 km). The worn surfaces are characterized by a scanning electron microscope (SEM) with energy dispersive spectroscopy (EDS). The response surface method (RSM) is used for modelling and optimising wear parameters. This quadratic equation and RSM-optimized parameters are used in genetic algorithm (GA). The GA is used to search for the optimum values which give the minimum wear rate and lower coefficient of friction. The developed equations are compared with the experimental values to determine the accuracy of the prediction.
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Authors and Affiliations

M. Beniyel
1
M. Sivapragash
2
S.C. Vettivel
3
P. Senthil Kumar
4
K.K. Ajith Kumar
5
K. Niranjan
6
  1. Department of Mechanical Engineering, Anna University, Chennai, Tamil Nadu, India
  2. Department of Mechanical Engineering, Universal College of Engineering and Technology, Vallioor, Tirunelveli, Tamilnadu, India
  3. Department of Mechanical Engineering, Chandigarh College of Engineering and Technology, Chandigarh, India
  4. Department of Mechanical Engineering, MET Engineering College, Tamilnadu, India
  5. Department of Mechanical Engineering, Rohini College of Engineering and Technology, Tamilnadu, India
  6. Department of Manufacturing Engg, Annamalai University, Annamalai Nagar-608 002, Tamilnadu, India

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