Novel method of additive manufactured functionally gradient materials using multi-component stranded welding wires

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2025-02-26 DOI:10.1016/j.msea.2025.148134

Run Chen , Weihang Lu , Fengbo Sun , Laibo Sun , Pengbo Wu , Jipeng Zou , Naiwen Fang , Lujun Huang , Cunyu Wang , Jiayi Jin , Xin Zhang , Lin Geng

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引用次数: 0

Abstract

In this work, the stranded welding wires (SWWs) were firstly used to fabricate functionally gradient materials (FGMs) by cold metal transfer process. A comprehensive assessment of this method was conducted in the 316L/Inconel718 system. The FGM was successfully fabricated with an inherently high depositing rate (70.7 g/min). Due to the unique molten stirring effect of SWWs, the as-printed FGM has shown excellent forming quality (low porosity value of 0.00378 %) and strong interfacial bonding which is achieved by the smooth compositional transition and heterogeneous microstructure at the interfacial zone. Combined with the compositional and structural similarity, the strong bonding fully unleashes the deformation potential of the stronger part in FGM, achieving a unique bimodal local strain distribution and outstanding fracture elongation (34 ± 4 %). This work can provide a new option for the fabrication methods of FGMs.

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来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.