Microstructure and mechanical properties of double pulse TIG welded super austenitic stainless steel butt joints-Reference-Cited by-同舟云学术

Microstructure and mechanical properties of double pulse TIG welded super austenitic stainless steel butt joints

Published:2024-07-08 Issue:9 Volume:66 Page:1379-1387
ISSN:0025-5300
Container-title:Materials Testing
language:en
Short-container-title:

Author:

John Raj Kumar Philomin R.¹,Baskaran Adimoolam¹,Thirumalaikumarasamy Duraisamy¹^ORCID,Sonar Tushar²³^ORCID,Ivanov Mikhail²³^ORCID,Pavendhan Rajangam⁴^ORCID

Affiliation:

1. Department of Manufacturing Engineering , Annamalai University , Chidambaram, 608002 , Tamil Nadu , India

2. Department of Welding Engineering , Institution of Engineering and Technology, South Ural State University (National Research University) , 454080 , Chelyabinsk , Russian Federation

3. Department of Scientific and Innovation Activities , Institution of Engineering and Technology, South Ural State University (National Research University), 454080 , Chelyabinsk , Russian Federation

4. Department of Mechanical Engineering, ARM College of Engineering and Technology , Chennai, 603209 , Tamil Nadu , India

Abstract

Abstract The primary objective of this study is to analyze the effect of double pulse tungsten inert gas (DP-TIG) welding on microstructure and mechanical properties of super austenitic SMO 254 stainless steel joints. The butt joints of SMO 254 steel were made using ERNiCrMo-10 filler metal. The microstructural characteristics of different regions of joint were analyzed using optical microscope, scanning electron microscope, X-ray diffraction analysis, and energy dispersive spectroscopy. The micrograph of weld metal showed finer equiaxed grains at the middle of weld metal and columnar grains near the weld interface. The SMO 254 steel joints showed the tensile strength of 636 MPa, ductility of 35 %, and impact toughness of 52 J. The fractured surfaces showed ductile mode of failure of joints.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/mt-2024-0081/pdf

Reference37 articles.

1. P. Roshith, M. Arivarasu, N. Arivazhagan, and A. Srinivasan, “Investigations on induced residual stresses, mechanical and metallurgical properties of CO2 laser beam and pulse current gas tungsten arc welded SMO 254,” J. Manuf. Process., vol. 44, pp. 81–90, 2019. https://doi.org/10.1016/j.jmapro.2019.05.044.

2. K. S. Bang, S. H. Pak, and S. K. Ahn, “Evaluation of weld metal hot cracking susceptibility in superaustenitic stainless steel,” Met. Mater. Int., vol. 19, no. 6, pp. 1267–1273, 2013. https://doi.org/10.1007/s12540-013-6019-6.

3. S. H. Wang, et al.., “Impact deformation behavior of duplex and superaustenitic stainless steels welds by split Hopkinson pressure bar,” Met. Mater. Int., vol. 15, no. 6, pp. 1007–1015, 2009. https://doi.org/10.1007/s12540-009-1007-6.

4. M. K. Gupta, N. K. Singh, and N. K. Gupta, “Deformation behaviour and notch sensitivity of a super duplex stainless steel at different strain rates and temperatures,” Int. J. Impact Eng., vol. 174, 2023, Art. no. 104494. https://doi.org/10.1016/j.ijimpeng.2023.104494.

5. B. Holmberg, “Progress on welding of high nitrogen alloyed austenitic stainless steels,” Weld. World, vol. 46, nos. 1–2, pp. 3–9, 2002. https://doi.org/10.1007/BF03266359.