2024年6月20日 星期四
A Prediction Model of Evaporation Behavior of Nickel-Based Superalloy in Electron Beam Melting
Nickel-base superalloy;electron beam melting;evaporation behavior;activity and activity coefficient
摘要

The electron beam melting technique has emerged as a novel refining technology extensively employed for alloy purification due to its advantages of effectively eliminating volatile impurities and non-metallic inclusions. However, a drawback associated with the melting process is the evaporation of alloy elements, which results in an uncontrollable alloy composition. In this paper, Wagner model is used to calculate and study the evaporation behavior. of nickel-based superalloy, and the database of infinite dilution activity coefficient and interaction coefficient of nickelbased superalloy has been established. The results show that the model can well predict the composition of electron beam melting superalloy, establish the relationship between electron beam melting power and temperature, and predict the composition of several groups of DZ125 alloys after melting with different power, which is in consistent with the experimental results. This model is of guiding significance for electron beam melting of nickel-based superalloy.  

DOI10.48014/pcms.20231010001
文章类型研究性论文
收稿日期2023-10-10
接收日期2023-11-27
出版日期2024-03-28
关键词Nickel⁃base superalloy, electron beam melting, evaporation behavior, activity and activity coefficient
作者DONG Gengyi, YIJIALA Yilit, HAN Wenjun, LIU Xiaoying, DONG Liyang, CHANG Kai, TAN Yi, WANG Yinong*
所在单位School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
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下载量86
基金项目Funding:This study was supported by the National Key Research and Development Project(Grant No.2019YFA0705300).
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引用本文DONG Gengyi, YIJIALA Yiliti, HAN Wenjun, et al. A prediction model of evaporation behavior of nickel-based superalloy in electron beam melting[J]. Progress in Chinese Materials Sciences, 2024, 3(1): 1-11.