Table of Contents
International Journal of Metals
Volume 2015, Article ID 213258, 7 pages
http://dx.doi.org/10.1155/2015/213258
Research Article

Effect of Electrode Types on the Solidification Cracking Susceptibility of Austenitic Stainless Steel Weld Metal

Department of Materials and Metallurgical Engineering, Federal University of Technology, PMB 1526, Owerri, Nigeria

Received 10 May 2015; Accepted 23 June 2015

Academic Editor: Peiqing La

Copyright © 2015 J. U. Anaele et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The effect of electrode types on the solidification cracking susceptibility of austenitic stainless steel weld metal was studied. Manual metal arc welding method was used to produce the joints with the tungsten inert gas welding serving as the control. Metallographic and chemical analyses of the fusion zones of the joints were conducted. Results indicate that weldments produced from E 308-16 (rutile coated), E 308-16(lime-titania coated) electrodes, and TIG welded joints fall within the range of and solidified with a duplex mode and were found to be resistant to solidification cracking. The E 308-16 weld metal had the greatest resistance to solidification cracking. Joints produced from E 310-16 had ratio < 1.5 and solidified with austenite mode. It was found to be susceptible to solidification cracking. E 312-16 produced joints having ratio > 1.9 and solidified with ferrite mode. It had a low resistance to solidification cracking.