Selection of Electrode Material for Inconel 617/P92 Steel SMAW Dissimilar Welds

Author:

Kumar Amit1,Pandey Shailesh Mani2,Bhattacharyya Abir3,Fydrych Dariusz4,Sirohi Sachin5,Pandey Chandan1

Affiliation:

1. Department of Mechanical Engineering, Indian Institute of Technology Jodhpur, Rajasthan 342037, India

2. Department of Mechanical Engineering, National Institute of Technology, Patna 800005, India

3. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Jodhpur, Rajasthan 342037, India

4. Institute of Manufacturing and Materials Technology, Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, Gdańsk 80-233, Poland

5. Department of Mechanical Engineering, SRM Institute of Science and Technology, Delhi NCR Campus Modinagar, Ghaziabad 201204, India

Abstract

Abstract The present work aimed to investigate the microstructure and mechanical properties of the dissimilar shielded metal arc welded (SMAW) joint of Alloy 617 and P92 steel for advanced ultrasupercritical boilers. The SMAW joint was produced using three different types of electrodes, namely, ENiCrFe-3, ENiCrMo-3, and ENiCrCoMo-1. During microstructural observation of the welded joints, no possible cracking was detected in the weldments. The dissimilar metal welds (DMWs) obtained using the ENiCrCoMo-1 electrode showed the maximum tensile strength, while the minimum was obtained for the ENiCrFe-3 electrode. Among all the electrodes, the ENiCrFe-3 electrode exhibited the maximum impact toughness, while the minimum was obtained for ENiCrCoMo-1 electrodes. Based on microstructure and mechanical characterization, the ENiCrFe-3 electrode was selected as the best one among all to produce the DMW of Alloy 617 and P92 steel.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

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