{"title":"Effect of Induction Heating Temperature on the Microstructures and Properties of GH4169 Alloy","authors":"Haiping Zhou, Jiliang Li, Peng Zhang, Shengxue Qin, Tingting Song, Wenqing Wei, Hongbin Zhang, Jie Liu, Shengchao Chen","doi":"10.1007/s11665-024-10036-1","DOIUrl":null,"url":null,"abstract":"<p>The effect of induction heating temperature on the microstructures and properties of GH4169 nickel-based superalloy was investigated. Both electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) were applied to analyze the microstructure. The results showed that the induction heating temperature had a promoting influence on the evolution of static recrystallization (SRX) and the optimization of grain boundary characteristics distribution (GBCD). After induction heating, the coincidence site lattice (CSL) boundaries were mainly <i>Σ</i>3 boundaries, and the main formation mechanism was the growth accident model. With the increasing heating temperature, the SRX behavior was well developed with a gradual increase in the fraction of <i>Σ</i>3 boundaries. This indicates a 'symbiotic relationship' between the SRX grains and <i>Σ</i>3 boundaries. Moreover, it was found that the ductility and corrosion resistance of the alloy were improved with the increasing temperature. This is mainly due to the fact that the SRX behavior can effectively improve the uniformity of the microstructure and eliminate the residual stresses. Meanwhile, the high fraction of <i>Σ</i>3 boundaries disrupts the connectivity of the random grain boundary network, ultimately enhancing the corrosion resistance of the GH4169 alloy.</p>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"7 1","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11665-024-10036-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The effect of induction heating temperature on the microstructures and properties of GH4169 nickel-based superalloy was investigated. Both electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) were applied to analyze the microstructure. The results showed that the induction heating temperature had a promoting influence on the evolution of static recrystallization (SRX) and the optimization of grain boundary characteristics distribution (GBCD). After induction heating, the coincidence site lattice (CSL) boundaries were mainly Σ3 boundaries, and the main formation mechanism was the growth accident model. With the increasing heating temperature, the SRX behavior was well developed with a gradual increase in the fraction of Σ3 boundaries. This indicates a 'symbiotic relationship' between the SRX grains and Σ3 boundaries. Moreover, it was found that the ductility and corrosion resistance of the alloy were improved with the increasing temperature. This is mainly due to the fact that the SRX behavior can effectively improve the uniformity of the microstructure and eliminate the residual stresses. Meanwhile, the high fraction of Σ3 boundaries disrupts the connectivity of the random grain boundary network, ultimately enhancing the corrosion resistance of the GH4169 alloy.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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