{"title":"Investigation on Carbon Steel Weldment and its Corrosion Behaviour","authors":"Mahidhar Reddy Veeram, Sanjeev Reddy K. Hudgikar","doi":"10.1007/s11085-024-10220-7","DOIUrl":null,"url":null,"abstract":"<p>The welding of carbon steel for boiler structures poses significant challenges that remain an open problem for researchers. Welded joints in boiler applications are subjected to harsh conditions involving exposure to both fire and water environments, complicating material sustainability. This study focuses on the unique challenges arising from the interaction of welds with chloride-rich environments. The combustion of fuel and the presence of chloride in the aqueous zone are particularly influential factors, as highlighted by research on fire side columns. The weld zone experiences severe deterioration, resulting in substantial material loss. To address this issue, the current research involved subjecting the weld material to a chloride environment, with a comprehensive evaluation of the weldment's behaviour through electrochemical corrosion studies. Material characteristics were further analysed using electron microscopy, EDS spectra, and X-ray diffractometry. The corrosion results form the basis for recommendations and suggestions aimed at enhancing the resilience of weldments in carbon steel boiler structures, offering valuable insights for the improvement of material performance in challenging operational conditions.</p>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Oxidation of Metals","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11085-024-10220-7","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
The welding of carbon steel for boiler structures poses significant challenges that remain an open problem for researchers. Welded joints in boiler applications are subjected to harsh conditions involving exposure to both fire and water environments, complicating material sustainability. This study focuses on the unique challenges arising from the interaction of welds with chloride-rich environments. The combustion of fuel and the presence of chloride in the aqueous zone are particularly influential factors, as highlighted by research on fire side columns. The weld zone experiences severe deterioration, resulting in substantial material loss. To address this issue, the current research involved subjecting the weld material to a chloride environment, with a comprehensive evaluation of the weldment's behaviour through electrochemical corrosion studies. Material characteristics were further analysed using electron microscopy, EDS spectra, and X-ray diffractometry. The corrosion results form the basis for recommendations and suggestions aimed at enhancing the resilience of weldments in carbon steel boiler structures, offering valuable insights for the improvement of material performance in challenging operational conditions.
用于锅炉结构的碳钢焊接面临着巨大的挑战,这对研究人员来说仍是一个未决问题。锅炉应用中的焊接接头要经受严酷的条件,包括暴露在火环境和水环境中,这使得材料的可持续性变得更加复杂。本研究的重点是焊缝与富含氯化物的环境相互作用所带来的独特挑战。燃料的燃烧和水区氯化物的存在是影响特别大的因素,这一点在对火侧柱的研究中得到了强调。焊接区会出现严重的劣化,导致大量材料损失。为解决这一问题,目前的研究包括将焊接材料置于氯化物环境中,并通过电化学腐蚀研究对焊接件的行为进行全面评估。此外,还使用电子显微镜、EDS 光谱和 X 射线衍射仪进一步分析了材料特性。腐蚀结果为旨在提高碳钢锅炉结构中焊接件的韧性的建议和意见提供了依据,为改善材料在具有挑战性的运行条件下的性能提供了宝贵的见解。
期刊介绍:
Oxidation of Metals is the premier source for the rapid dissemination of current research on all aspects of the science of gas-solid reactions at temperatures greater than about 400˚C, with primary focus on the high-temperature corrosion of bulk and coated systems. This authoritative bi-monthly publishes original scientific papers on kinetics, mechanisms, studies of scales from structural and morphological viewpoints, transport properties in scales, phase-boundary reactions, and much more. Articles may discuss both theoretical and experimental work related to gas-solid reactions at the surface or near-surface of a material exposed to elevated temperatures, including reactions with oxygen, nitrogen, sulfur, carbon and halogens. In addition, Oxidation of Metals publishes the results of frontier research concerned with deposit-induced attack. Review papers and short technical notes are encouraged.