Microstructure and mechanical properties of Cu/steel dissimilar joints

Chu, Qiaoling; Cao, Qilu; Li, Yang; Zhang, Min; Zhao, Ping; Yan, Fuxue; Luo, Hailong; Wang, Xudong; Yan, Cheng

doi:10.1016/j.ijpvp.2022.104828

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…Some other studies reported different configurations of bonding with either steel or tungsten but not both of them [38,44]. For example, a copper/steel dissimilar bond was reported by Chu et al [177], where diffusion of Cu into steel resulted in severe cracking and the formation of Ni 2 Si intermetallic was found. Friction stir welding was used by Joshani et al [178] to produce a dissimilar joint of 7075 aluminum/AISI 304 stainless steel.…”

Section: Other Diffusion Bond Configurationsmentioning

confidence: 99%

“…Higher pressure produced a better bond and a more ductile fracture was reported, which is due to more disruption of oxide layers from the higher pressure. Some other studies have been conducted where the bonding between tungsten and steel was facilitated by a brazing process [177,[180][181][182][183][184][185] and explosive diffusion bonding process [186]. From all these studies, valuable information regarding the diffusion characteristics of different combinations of elements can be acquired.…”

Section: Other Diffusion Bond Configurationsmentioning

confidence: 99%

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Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Robin

Gräning

Yang

et al. 2023

Metals

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Critical aspects of innovative design in engineering disciplines like infrastructure, transportation, and medical applications require the joining of dissimilar materials. This study investigates the literature on solid-state bonding techniques, with a particular focus on diffusion bonding, as an effective method for establishing engineering bonds. Welding and brazing, while widely used, may pose challenges when joining materials with large differences in melting temperature and can lead to mechanical property degradation. In contrast, diffusion bonding offers a lower temperature process that relies on solid-state interactions to develop bond strength. The joining of tungsten and steel, especially for fusion reactors, presents a unique challenge due to the significant disparity in melting temperatures and the propensity to form brittle intermetallics. Here, diffusion characteristics of tungsten–steel interfaces are examined and the influence of bonding parameters on mechanical properties are investigated. Additionally, CALPHAD modeling is employed to explore joining parameters, thermal stability, and diffusion kinetics. The insights from this research can be extended to join numerous dissimilar materials for specific applications such as aerospace, automobile industry, power plants, etc., enabling advanced and robust design with high efficiency.

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Section: Other Diffusion Bond Configurationsmentioning

confidence: 99%

Section: Other Diffusion Bond Configurationsmentioning

confidence: 99%

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Robin

Gräning

Yang

et al. 2023

Metals

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“…However, welding steel-copper composites faces significant challenges due to notable disparities in the physical, chemical, and metallurgical properties between copper and steel. These challenges include the restricted solubility of copper in iron and the propensity to generate coarse-grained microstructures [6,7].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Single-Pulse Laser Welding of Dissimilar Metal Combination of Thin SUS303 SS and Cu

Huang,

Feng

2023

JMMP

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The present study investigated the dissimilar metal combination of SUS303 stainless steel (SS) and pure copper C19210 by utilizing a fiber pulse laser to perform lap welding. The weld quality was evaluated through metallurgical and mechanical examinations, including scanning electron microscopy (SEM), optical microscopy (OM), energy dispersive spectroscopy (EDS), as well as tensile and shear tests. The cross-section of the weld joints was observed to examine the penetration inside the molten zone of the pulse laser welding. The incomplete weld penetration depth was confirmed by analyzing the molten pool geometry, which indicated that the penetration depth was proportional to the pulse heat energy input. EDS analysis demonstrated that interdiffusion and dissolution of Cu and SS occurred inside the weld pool, although only a limited amount of Cu was melted. Microhardness (MH) exploration revealed the hardness of the molten zone was lower than that of the heat-affected zone (HAZ) on the SS side, while the hardness on the Cu side, closer to the molten zone, was higher. The results of the tensile test indicated that the fracture occurred in the HAZ on the Cu side, displaying a dimpled fracture mode characteristic of ductile fracture.

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A critical review on solid-state welding of high entropy alloys– processing, microstructural characteristics and mechanical properties of joints

et al. 2024

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Microstructure and mechanical properties of Cu/steel dissimilar joints

Cited by 6 publications

References 45 publications

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Investigation of Single-Pulse Laser Welding of Dissimilar Metal Combination of Thin SUS303 SS and Cu

A critical review on solid-state welding of high entropy alloys– processing, microstructural characteristics and mechanical properties of joints

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