Experimental evaluation of longitudinal tensile properties of ferritic stainless-steel weldment joined by metal inert gas, pulse metal inert gas, and tungsten inert gas welding

Q4 Materials Science Welding International Pub Date : 2022-12-02 DOI:10.1080/09507116.2022.2154718

S. Hussain, A. K. Pathak

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引用次数: 1

Abstract

Abstract In this work, ferritic stainless steel (FSS) weldments were prepared by tungsten inert gas (TIG), metal inert gas (MIG), and pulsed-MIG welding. Pure argon and a mixture of argon + 2% oxygen were utilized as shielding gas in each type of welding. The FSS (ER430) and austenitic stainless steel (ASS) (ER309L) wires were used as filler consumable wires during all the three types of welding. The effects of varying welding processes, shielding gases, and consumable electrodes on the longitudinal tensile properties of weldments were investigated. The universal tensile testing machine was used to evaluate longitudinal ultimate tensile strength and percentage elongation experimentally in each case. The maximum tensile strength of FSS weldment was obtained in the case of (Ar + 2% O2) mixture of shielding gas and ASS filler wire in each welding process. Heat treatment was also carried out for samples prepared by MIG and TIG welding. The reduction in tensile strength and enhancement in percentage elongation was observed for both MIG and TIG welding after heat treatment.

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金属惰性气体、脉冲金属惰性气体和钨惰性气体焊接铁素体不锈钢焊件纵向拉伸性能的实验评价

摘要采用钨极惰性气体保护焊、金属极惰性气体焊和脉冲MIG焊制备了铁素体不锈钢（FSS）焊件。在每种类型的焊接中使用纯氩和氩+2%氧的混合物作为保护气体。FSS（ER430）和奥氏体不锈钢（ASS）（ER309L）焊丝在所有三种类型的焊接过程中都被用作填充自耗焊丝。研究了不同焊接工艺、保护气体和自耗电极对焊件纵向拉伸性能的影响。使用通用拉伸试验机对每种情况下的纵向极限拉伸强度和伸长率进行实验评估。在保护气体和ASS填充焊丝的（Ar+2%O2）混合物的情况下，获得了FSS焊件在每个焊接过程中的最大抗拉强度。还对MIG和TIG焊接制备的样品进行了热处理。热处理后，观察到MIG和TIG焊接的抗拉强度降低，伸长率提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Welding International Materials Science-Metals and Alloys

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0.70

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期刊介绍： Welding International provides comprehensive English translations of complete articles, selected from major international welding journals, including: Journal of Japan Welding Society - Japan Journal of Light Metal Welding and Construction - Japan Przeglad Spawalnictwa - Poland Quarterly Journal of Japan Welding Society - Japan Revista de Metalurgia - Spain Rivista Italiana della Saldatura - Italy Soldagem & Inspeção - Brazil Svarochnoe Proizvodstvo - Russia Welding International is a well-established and widely respected journal and the translators are carefully chosen with each issue containing a balanced selection of between 15 and 20 articles. The articles cover research techniques, equipment and process developments, applications and material and are not available elsewhere in English. This journal provides a valuable and unique service for those needing to keep up-to-date on the latest developments in welding technology in non-English speaking countries.