微波辐照双金属接头界面表面特性的实验研究

IF 1.2 4区 材料科学 Q4 CHEMISTRY, PHYSICAL Surface Review and Letters Pub Date : 2023-07-05 DOI:10.1142/s0218625x23500683
S. Kaushal, S. Kumari, D. Mudgal, D. Gupta, Hitesh Vasudev
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引用次数: 0

摘要

异种金属接头界面的表面特性对其功能性能起着至关重要的作用。在本研究中,研究了微波处理和TIG焊接双金属接头界面的微观结构、冶金和腐蚀行为。采用扫描电镜/能谱仪、X射线衍射仪和显微硬度计对接头界面的冶金和力学性能进行了研究。在生物质燃料锅炉的实际环境和模拟锅炉环境中,对两种接头在高温下的热腐蚀行为进行了研究。采用扫描电镜和X射线衍射方法对两种接头的后腐蚀行为进行了分析。TIG焊接样品在实际和模拟腐蚀环境中都表现出更大的重量损失。在实际腐蚀环境中,基体中铬的损耗证明,铬通过在腐蚀循环中形成保护性氧化物来控制腐蚀速率。
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EXPERIMENTAL STUDIES ON THE SURFACE CHARACTERISTICS OF BIMETALLIC JOINTS INTERFACE FABRICATED THROUGH MICROWAVE IRRADIATION
Surface characteristics of dissimilar metal joints interface play a crucial role on its functional performance. In this study, the microstructural, metallurgical and corrosion behavior of the microwave processed and TIG welded bimetallic joints interface surfaces were investigated. Metallurgical and mechanical properties of the joints interface surfaces were studied using SEM/EDS, XRD and microhardness techniques. The hot corrosion behavior study of both joints was carried out at elevated temperature in actual environment of biomass fuel-fired boiler as well as in simulated boiler environment. The after-corrosion behavior of both joints was analyzed using SEM and XRD methods. TIG-welded samples exhibited more loss in weight during both actual and simulated corrosion environments. The depletion of chromium from substrates in the actual corrosion environment proved that chromium is involved in controlling corrosion rates by forming the protective oxides during corrosion cycles.
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来源期刊
Surface Review and Letters
Surface Review and Letters 工程技术-物理:凝聚态物理
CiteScore
2.20
自引率
9.10%
发文量
139
审稿时长
4.2 months
期刊介绍: This international journal is devoted to the elucidation of properties and processes that occur at the boundaries of materials. The scope of the journal covers a broad range of topics in experimental and theoretical studies of surfaces and interfaces. Both the physical and chemical properties are covered. The journal also places emphasis on emerging areas of cross-disciplinary research where new phenomena occur due to the presence of a surface or an interface. Representative areas include surface and interface structures; their electronic, magnetic and optical properties; dynamics and energetics; chemical reactions at surfaces; phase transitions, reconstruction, roughening and melting; defects, nucleation and growth; and new surface and interface characterization techniques.
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