BibTeX:

@article{IJIRSTV3I2072,
     title={A Study of Micro Structures of Gas Metal Arc Welded Aluminium Alloy 6061-T6},
     author={Sagar R. Chikhale, Kishor P. Kolhe, Pawan Kumar and Pankaj Kumar Verma},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={2},
     pages={115--123},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I2072.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Aluminum and its alloys are having variety of applications in today’s industrial scenario. Aluminium Alloy 6061 (AA6061-T6) is an Al-Mg-Si alloy employed in Marine frames, automobiles and high speed trains due to their high strength, light weight and excellent corrosion resistance. Nine samples were prepared for toughness studies and tensile strength. The CVN samples were prepared by ASTM-E-23 standard. Also tensile specimens were prepared by using ASTM-E28/E8M-09 for identifying the tensile strength of weld specimen. The Tensile and Toughness test was carried out by using UTM and Charpy V-Notch testing machine. The Grain size and microstructures of the Gas Metal Arc Welded AA6061-T6 have been studied at various combinations of MIG welding process parameters like Current, Voltage and welding speed. The microstructure study followed of all the specimens were carried out by using Metallurgical microscope with Image Analyzer System, the Microhardness study has was carried out using Digital Vickers Microhardness tester. Also the effect of various parameters on welds microstructures and grain size distribution has been explained, the various correlations between grain size and mechanical properties are studied.

GMAW, AA6061-T6, Grain size analysis, Micro hardness, Microstructures of Welded joint