Investigate on dissimilar welding of high-entropy alloy and 310S with various fillers

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design Pub Date : 2024-11-13 DOI:10.1016/j.matdes.2024.113454

Chihhsien Liao , Tingen Shen , Weichen Hsu , Hsiencheng Wu , Chenchou Chung , Chunlung Peng , Chewei Tsai

引用次数: 0

Abstract

This study investigates the microstructure and mechanical properties of non-equimolar CoCrFeMoNi high-entropy alloy (HEA) and SUS310S stainless steel dissimilar welds using different filler materials. The dissimilar welding was performed on gas tungsten arc welding with Inconel 82, Inconel 625, and 316L stainless steel fillers. The non-equimolar CoCrFeMoNi HEA is shown effective weldability with these fillers, maintaining distinguished phase stability and structural integrity. Microstructural analysis revealed varied grain morphologies influenced by the heat in the fusion zone and heat-affected zone. Mechanical properties were evaluated through tensile and hardness tests, showing that welds with Inconel 625 filler exhibited superior strength and ductility. The weld hardness value was maintained at 170 HV, with a yield strength of 301 MPa and an ultimate tensile strength of 587 MPa, resulting in a joint efficiency of 106 %.

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研究高熵合金和 310S 与各种填充物的异种焊接

本研究探讨了使用不同填充材料的非等摩尔 CoCrFeMoNi 高熵合金（HEA）和 SUS310S 不锈钢异种焊缝的微观结构和机械性能。异种焊接采用 Inconel 82、Inconel 625 和 316L 不锈钢填料进行气体钨极氩弧焊。非等摩尔 CoCrFeMoNi HEA 与这些填料的焊接性良好，并保持了不同的相稳定性和结构完整性。微观结构分析表明，熔合区和热影响区的热量影响了不同的晶粒形态。通过拉伸和硬度测试评估了机械性能，结果表明使用铬镍铁合金 625 填充物的焊缝具有优异的强度和延展性。焊缝硬度值保持在 170 HV，屈服强度为 301 兆帕，极限拉伸强度为 587 兆帕，接头效率为 106%。

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来源期刊

Materials & Design Engineering-Mechanical Engineering

CiteScore

14.30

自引率

7.10%

发文量

1028

审稿时长

85 days

期刊介绍： Materials and Design is a multi-disciplinary journal that publishes original research reports, review articles, and express communications. The journal focuses on studying the structure and properties of inorganic and organic materials, advancements in synthesis, processing, characterization, and testing, the design of materials and engineering systems, and their applications in technology. It aims to bring together various aspects of materials science, engineering, physics, and chemistry. The journal explores themes ranging from materials to design and aims to reveal the connections between natural and artificial materials, as well as experiment and modeling. Manuscripts submitted to Materials and Design should contain elements of discovery and surprise, as they often contribute new insights into the architecture and function of matter.