Investigation on residual stress, microstructure, and properties of the electron beam welded Haynes 230-based thin-walled piece

IF 2.4 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Welding in the World Pub Date : 2024-09-07 DOI:10.1007/s40194-024-01832-3

Jian Xu, Yang Guo, Hailong Cheng, Guijun Mao, Shaolin Zhao, Xin Wu

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Abstract

Haynes 230 material is an important high-temperature alloy used in many significant applications. Electron beam welding (EBW) process is necessary for Haynes 230 to realize some complex structures. In this study, by combining three-dimensional finite element simulation with different experimental methods, the thermal behavior, residual stress, microstructure, and mechanical properties of Haynes 230 thin-walled weldment made by EBW were comprehensively investigated. The EBW process would induce an uneven temperature distribution in the weldment, which then results in a large amount of tensile residual stress. Sufficient amount of precipitates was generated to provide enough enhancement for the strength. The quality of the weldment was good to provide comparable strength to the base metal. This study could offer important information for the application of EBW welded Haynes 230 material, especially in the thin-walled workpieces that are used in hot-end components of combustion gas turbines.

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电子束焊接海恩斯 230 型薄壁件的残余应力、微观结构和性能研究

Haynes 230 材料是一种重要的高温合金，被广泛应用于许多重要领域。电子束焊接（EBW）工艺是实现某些复杂结构所必需的。本研究结合三维有限元模拟和不同的实验方法，全面研究了 EBW 工艺制成的 Haynes 230 薄壁焊件的热行为、残余应力、微观结构和力学性能。EBW 工艺会导致焊件温度分布不均，进而产生大量拉伸残余应力。产生的足够数量的析出物足以提高强度。焊接件的质量良好，可提供与母材相当的强度。这项研究为 EBW 焊接 Haynes 230 材料的应用提供了重要信息，尤其是在燃烧式燃气轮机热端部件中使用的薄壁工件方面。

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来源期刊

Welding in the World METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

4.20

自引率

14.30%

发文量

181

审稿时长

6-12 weeks

期刊介绍： The journal Welding in the World publishes authoritative papers on every aspect of materials joining, including welding, brazing, soldering, cutting, thermal spraying and allied joining and fabrication techniques.