Exploring the synergistic mechanisms of mechanical, microstructural morphology, and corrosion characteristics in inconel 718-AISI 430 dissimilar weldment joints using ERNiCrMo-4 and ER2209 fillers: a comparative performance analysis

IF 4.4 3区工程技术 Q1 ENGINEERING, CIVIL

Archives of Civil and Mechanical Engineering Pub Date : 2025-02-22 DOI:10.1007/s43452-025-01155-0

Balram Yelamasetti, B. Tulasi Lakshmi Devi, B. Omprakash, Chilakamarri L. Aslesha, Sagar Shelare, Shubham Sharma, V. Nagabhushana Rao, Ehab El Sayed Massoud

{"title":"Exploring the synergistic mechanisms of mechanical, microstructural morphology, and corrosion characteristics in inconel 718-AISI 430 dissimilar weldment joints using ERNiCrMo-4 and ER2209 fillers: a comparative performance analysis","authors":"Balram Yelamasetti, B. Tulasi Lakshmi Devi, B. Omprakash, Chilakamarri L. Aslesha, Sagar Shelare, Shubham Sharma, V. Nagabhushana Rao, Ehab El Sayed Massoud","doi":"10.1007/s43452-025-01155-0","DOIUrl":null,"url":null,"abstract":"<div><p>The comparative study is made on dissimilar weldments of Inconel 718 and ferritic stainless steel 430 joined by pulsed current tungsten inert gas welding process using ERNiCrMo-4 and ER2209 fillers. The base metals were joined with multiple welds passes by keeping pulse frequency (4 Hz) constant. The samples were examined for internal defects using X-ray radiography along with visual inspection. To understand the weldability of two different fillers, the mechanical properties were assessed by conducting a tension test as well as the hardness measurement. The macro/microstructures were revealed at various zones using an optical microscope with different magnifications. Further, for measuring the corrosion rate at fusion zone, the weld surface area of 0.1257 cm<sup>2</sup> was submerged in a 3.5% NaCl solution. The weld strength of 542 MPa was observed for ERNiCrMo-4 weldment whereas 469 MPa was observed for ER2209 filler weldment. Higher yield strength to weld strength was observed in ERNiCrMo-4 filler weldment than in the ER2209 filler weldment. ERNiCrMo-4 filler weld exhibited better hardness (198 HV) at the weld zone than the ER2209 filler weld (185 HV). The presence of a fine-grained structure at the interface of ferritic stainless steel 430 provides evidence of efficient blending and solidification in ERNiCrMo-4 filler weld. Whereas the elongated grains and secondary phases could potentially reduce the strength of ferritic stainless steel 430 in ER2209 filler weld. The corrosion resistance of ER2209 weldment (1.117 mm/year) is higher than the ERNiCrMo-4 weldment (1.353 mm/year) because of the presence of fine grain structures along with higher dense filler alloy elements.</p></div>","PeriodicalId":55474,"journal":{"name":"Archives of Civil and Mechanical Engineering","volume":"25 2","pages":""},"PeriodicalIF":4.4000,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Civil and Mechanical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s43452-025-01155-0","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

Abstract

The comparative study is made on dissimilar weldments of Inconel 718 and ferritic stainless steel 430 joined by pulsed current tungsten inert gas welding process using ERNiCrMo-4 and ER2209 fillers. The base metals were joined with multiple welds passes by keeping pulse frequency (4 Hz) constant. The samples were examined for internal defects using X-ray radiography along with visual inspection. To understand the weldability of two different fillers, the mechanical properties were assessed by conducting a tension test as well as the hardness measurement. The macro/microstructures were revealed at various zones using an optical microscope with different magnifications. Further, for measuring the corrosion rate at fusion zone, the weld surface area of 0.1257 cm² was submerged in a 3.5% NaCl solution. The weld strength of 542 MPa was observed for ERNiCrMo-4 weldment whereas 469 MPa was observed for ER2209 filler weldment. Higher yield strength to weld strength was observed in ERNiCrMo-4 filler weldment than in the ER2209 filler weldment. ERNiCrMo-4 filler weld exhibited better hardness (198 HV) at the weld zone than the ER2209 filler weld (185 HV). The presence of a fine-grained structure at the interface of ferritic stainless steel 430 provides evidence of efficient blending and solidification in ERNiCrMo-4 filler weld. Whereas the elongated grains and secondary phases could potentially reduce the strength of ferritic stainless steel 430 in ER2209 filler weld. The corrosion resistance of ER2209 weldment (1.117 mm/year) is higher than the ERNiCrMo-4 weldment (1.353 mm/year) because of the presence of fine grain structures along with higher dense filler alloy elements.

查看原文本刊更多论文

ERNiCrMo-4和ER2209填料对inconel 718-AISI 430异种焊接接头力学、显微组织形态和腐蚀特性的协同作用机制研究：性能对比分析

采用ERNiCrMo-4和ER2209两种填料，对脉冲电流钨极惰性气体焊接法连接Inconel 718和铁素体不锈钢430的异种焊缝进行了对比研究。通过保持脉冲频率（4hz）恒定，将贱金属与多个焊缝连接在一起。使用x射线照相和目视检查检查样品的内部缺陷。为了了解两种不同填料的可焊性，通过进行拉伸试验和硬度测量来评估其机械性能。利用不同倍率的光学显微镜观察不同区域的宏微观结构。此外，为了测量熔合区的腐蚀速率，将0.1257 cm2的焊缝表面浸泡在3.5% NaCl溶液中。ERNiCrMo-4焊件的焊接强度为542 MPa， ER2209填充焊件的焊接强度为469 MPa。ERNiCrMo-4填充焊件的屈服强度比ER2209填充焊件的屈服强度高。ERNiCrMo-4填充焊缝焊缝区硬度（198 HV）优于ER2209填充焊缝区硬度（185 HV）。在铁素体不锈钢430的界面处存在细晶组织，证明了ERNiCrMo-4填充焊缝中有效的混合和凝固。而在ER2209填充焊缝中，铁素体不锈钢430的拉伸晶粒和二次相可能会降低其强度。ER2209焊件的耐蚀性（1.117 mm/年）高于ERNiCrMo-4焊件（1.353 mm/年），这是由于ER2209焊件存在细小的晶粒组织以及高密度的填充合金元素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Archives of Civil and Mechanical Engineering 工程技术-材料科学：综合

CiteScore

6.80

自引率

9.10%

发文量

201

审稿时长

4 months

期刊介绍： Archives of Civil and Mechanical Engineering (ACME) publishes both theoretical and experimental original research articles which explore or exploit new ideas and techniques in three main areas: structural engineering, mechanics of materials and materials science. The aim of the journal is to advance science related to structural engineering focusing on structures, machines and mechanical systems. The journal also promotes advancement in the area of mechanics of materials, by publishing most recent findings in elasticity, plasticity, rheology, fatigue and fracture mechanics. The third area the journal is concentrating on is materials science, with emphasis on metals, composites, etc., their structures and properties as well as methods of evaluation. In addition to research papers, the Editorial Board welcomes state-of-the-art reviews on specialized topics. All such articles have to be sent to the Editor-in-Chief before submission for pre-submission review process. Only articles approved by the Editor-in-Chief in pre-submission process can be submitted to the journal for further processing. Approval in pre-submission stage doesn''t guarantee acceptance for publication as all papers are subject to a regular referee procedure.