@article{(Open Science Index):https://publications.waset.org/pdf/9999981,
	  title     = {Experimental Investigation and Hardness Analysis of Chromoly Steel Multipass Welds Using GMAW},
	  author    = {Ramesh S. and  Sasiraaju A. S. and  Sidhaarth K. and  Sudhan Rajkumar N. and  Manivel Muralidaran V.},
	  country	= {},
	  institution	= {},
	  abstract     = {This work presents the result of investigations aimed
at determining the hardness of the welded Chromoly (A 4130) steel
plate of 2” thickness. Multi pass welding for the thick sections was
carried out and analyzed for the Chromoly alloy steel plates. The
study of hardness at the weld metal reveals that there is the presence
of different micro structure products which yields diverse properties.
The welding carried out using GMAW with ER70s-2 electrode.
Single V groove design was selected for the butt joint configuration.
The presence of hydrogen has been suppressed by selecting low
hydrogen electrode. Preheating of the plate prior to welding reduces
the cooling rate which also affects the weld metal microstructure. The
shielding gas composition used in this analysis is 80% Ar-20% CO2.
The experimental analysis gives the detailed study of the hardness of
the material.
},
	    journal   = {International Journal of Materials and Metallurgical Engineering},
	  volume    = {8},
	  number    = {12},
	  year      = {2014},
	  pages     = {2024 - 2027},
	  ee        = {https://publications.waset.org/pdf/9999981},
	  url   	= {https://publications.waset.org/vol/96},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 96, 2014},
	}