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首页> 外文期刊>Transactions of the Indian Institute of Metals >Comparative Studies on Metallurgical and Mechanical Properties of Bimetallic Combination on Incoloy 800 and SS 316L Fabricated by Gas Metal and Shield Metal Arc Welding
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Comparative Studies on Metallurgical and Mechanical Properties of Bimetallic Combination on Incoloy 800 and SS 316L Fabricated by Gas Metal and Shield Metal Arc Welding

机译：金属金属和屏蔽金属弧焊灌注器800和SS 316L对灌注器800和SS 316L的冶金和力学性能的比较研究

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摘要

The needs of the dissimilar weld joint between superalloy and stainless steel is increasing in many industries. Gas tungsten arc welding (GTAW) and shield metal arc welding (SMAW) are the most common methods used to fabricate the weld joints in the fabrication industry due to its high versatility in the fabrication of industrial components and parts. The present study investigated the metallurgical and mechanical properties of bimetallic joints fabricated between nickel-based superalloy Incoloy 800 and stainless steel AISI 316L. The weld joints were fabricated by using ERNiCrMo-3 filler wire. The micrograph of weld fusion zone revealed the austenitic microstructure with columnar dendrite and cellular structure in both weldments. SEM/EDS analysis witnessed the precipitation of Nb-rich phase in the weld fusion zone fabricated by SMAW process, and it was minimized in case of GTA welding technique. The strength and toughness of the weld joint fabricated by GTAW improved 14 and 25% respectively when compared to SMAW technique.
机译：超合金与不锈钢之间的不同焊接接头的需求在许多行业中都在增加。气体钨弧焊（GTAW）和屏蔽金属弧焊（SMAW）是由于其在工业部件和零件的制造中具有高通用性，因此用于制造制造行业中的焊接接头的最常用方法。本研究研究了基于镍的超合金800和不锈钢AISI 316L之间制造的双金属接头的冶金和力学性能。通过使用ERNICRMO-3填充线制造焊接接头。焊接融合区的显微照片揭示了两种焊接中柱状枝晶和蜂窝结构的奥氏体微观结构。 SEM / EDS分析目睹了SMAW工艺制造的焊接融合区中Nb富相位的沉淀，在GTA焊接技术的情况下最小化。与Smaw技术相比，通过GTAA的焊接接头的强度和韧性改善了14和25％。

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