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

Justus Uchenna Anaele | Zendy; Okechukwu Onyebuchi Onyemaobi | Zendy; Chijioke Samson Nwobodo | Zendy; Chima C. Ugwuegbu | Zendy

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

Author(s) -

Justus Uchenna Anaele,

Okechukwu Onyebuchi Onyemaobi,

Chijioke Samson Nwobodo,

Chima C. Ugwuegbu

Publication year - 2015

Publication title -

international journal of metals

Language(s) - English

Resource type - Journals

eISSN - 2356-704X

pISSN - 2314-680X

DOI - 10.1155/2015/213258

Subject(s) - materials science

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 1.5≤Creq./Nieq.≤1.9 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 Creq./Nieq. ratio < 1.5 and solidified with austenite mode. It was found to be susceptible to solidification cracking. E 312-16 produced joints having Creq./Nieq. ratio > 1.9 and solidified with ferrite mode. It had a low resistance to solidification cracking

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