Augmentation in depth of penetration of hastelloy C-22 by FATIG welding

IF 3.9 Q2 ENGINEERING, INDUSTRIAL Advances in Industrial and Manufacturing Engineering Pub Date : 2022-05-01 DOI:10.1016/j.aime.2022.100081

Dixit Patel , Suketu Jani , Darshit Shah

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引用次数: 3

Abstract

Flux assisted tungsten inert gas welding (FATIG) welding is a modified version of tungsten inert gas (TIG) welding to achieve a higher depth of penetration. In the present work, nanoparticles SiO₂, Al₂O_3, Fe₂O₃, and CuO mix with acetone and coated on the joint before welding. Bead on plate welding using different variants of FATIG welding performed on Hastelloy C-22. A comparative study of these variants called Activated tungsten inert gas (ATIG) and Flux bound tungsten inert gas (FBTIG) welding was conducted to find out their effects on depth of penetration, depth to width (D//W) ratio, surface appearance, and slag detachability. In addition, the influence of acidic and basic nature of flux on weld bead geometry and surface appearance are analyzed. Acidic fluxes produce a smoother weld surface than basic oxide fluxes; additionally, acidic flux slag is less sticky than basic flux slag. activated TIG (ATIG) welding with SiO₂ flux increases penetration and D/W ratio by 125% and 190%, respectively compared to normal TIG welding.

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FATIG焊提高哈氏合金C-22的熔深

助焊剂辅助钨惰性气体焊接(FATIG)是钨惰性气体焊接(TIG)的改进版本，以实现更高的熔透深度。在本工作中，纳米SiO2、Al2O3、Fe2O3和CuO与丙酮混合，在焊接前涂覆在接头上。在哈氏合金C-22上使用不同变体的FATIG焊接进行板上焊头。对比研究了活性钨惰性气体(ATIG)和熔剂结合钨惰性气体(FBTIG)两种焊接方式对熔深、深宽比(D/ W)、表面形貌和熔渣可脱性的影响。此外，还分析了助焊剂的酸性和碱性对焊缝几何形状和表面形貌的影响。酸性助焊剂比碱性氧化物助焊剂产生更光滑的焊缝表面;此外，酸性助熔剂渣比碱性助熔剂渣具有更小的粘性。与普通TIG焊相比，添加SiO2助焊剂的活化TIG焊的熔深和D/W比分别提高了125%和190%。

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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