A Prediction Model of Evaporation Behavior of Nickel-Based Superalloy in Electron Beam Melting

DONGGengyi; YIJIALAYilit; HANWenjun; LIUXiaoying; DONGLiyang; CHANGKai; TANYi; WANGYinong

doi:10.48014/pcms.20231010001

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

中国材料科学进展 2024年第3卷第1期页码[1-11] 下载全文[4.9MB] [HTML]

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.

DOI

10.48014/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

浏览量

854

下载量

414

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.