Diffusion bonding through interlayers

Зеер, Г. М.; Zelenkova, E. G.; Koroleva, Yu. P.; Михеев, А. А.; Prokopy'ev, S.V.

doi:10.1080/09507116.2012.753311

Cited by 15 publications

(6 citation statements)

References 1 publication

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“…The joining surfaces of the specimens were surface prepared by standard techniques using few steps of grinding papers and polished on 1 µm diamond suspension. The copper foil of 150 µm thickness was used as an intermediate metal [5,6]. There were cut square profiles from the copper foil having 50 mm thickness.…”

Section: Methodsmentioning

confidence: 99%

Diffusion bonding of a titanium alloy to austenitic stainless steel using copper as an interlayer

2019

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Diffusion bonding was accomplished between Ti-6Al-4V alloy and AISI 304 austenitic stainless steel utilizing copper as an interlayer in the holding time variety of 45-105 min for 925 °C under 14 MPa load in a vacuum. After bonding, the microstructural study including metallographic examination and energy dispersive spectroscopy, microhardness survey, lap shear strength test, and ram tensile test were accomplished. From the results, holding time is a major influence to develop the microstructural characteristics and improve the joints quality. The occasion of various intermetallic compounds, for example, CuTi, Cu 3 Ti 2 , FeTi, Fe 2 Ti, Cr 2 Ti has been expected from the ternary phase diagrams of Fe-Cu-Ti and Fe-Cr-Ti. These reaction items were insisted on the X-ray diffraction method. The highest bond strength of 268 MPa was attained for the pair bonded at 90 min holding time. This is a direct result of the better combination of the mating surface. With the expansion in holding time to 105 min, the quality was reduced caused by the expanded volume fraction of discontinuities.

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Section: Methodsmentioning

confidence: 99%

Diffusion bonding of a titanium alloy to austenitic stainless steel using copper as an interlayer

2019

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“…It depends on many factors such as purity, surface roughness and chemical composition of all materials involved, method of deposition and thickness of interlayer. The relative thickness and ductile properties of the interlayer material influence the stress-strain state at the bond interface and the contact effect such as hardening/softening [74]. Depending on the type of material used for bonding, interlayers can be classified by their purpose:…”

Section: (Ii) Use Of Interlayers and Effect Of Alloying Elementsmentioning

confidence: 99%

“…To bond the materials with higher hardness and brittleness, it is necessary to use interlayer activators of the bonded surfaces, which have higher ductility compared to those of parent metal. Depending on the interlayers' purpose, they are implemented in the form of foils, films and coatings, deposited on one or both bonding surfaces by electroplating or vacuum spraying, rolling of powders or combining the spraying and foil [74].…”

Section: (Ii) Use Of Interlayers and Effect Of Alloying Elementsmentioning

confidence: 99%

Effect of surface oxide layers in solid-state welding of aluminium alloys – review

Zlatanović

Bergmann

Baloš

et al. 2023

Science and Technology of Welding and Joining

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This review sheds novel insights on the residual oxide behaviour of solid-state weld joints of aluminium alloys. Understanding the influence of oxides on the aluminium surface before and during welding, its impact on the weld structure and possible solutions for reducing its impact were addressed. The solid-state techniques most relevant to the transportation sector namely, diffusion bonding, friction stir spot welding and ultrasonic welding were surveyed, analysed and reviewed. During this analysis, the implication of the presence of oxides on aluminium substrate affecting the metallurgical characteristics of the weld joints was reviewed. Visible defects such as voids, delamination, kissing bond and hook defects, and problems associated with these defects were analysed and few suggestions are made to partially overcome these issues.

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“…Interlayers are used in diffusion bonding to reduce chemical heterogeneity and thermodynamic instability in the transition zone of the joint, as well as to prevent or restrict the effects of temperature deformation considerably while joining dissimilar metals. The interdiffusion that occurs between the interlayer and the base metal makes the TLP bonding technique effective for joining dissimilar metals with a large difference in thermal properties. − …”

Section: Introductionmentioning

confidence: 99%

Impact of Bonding Temperature on Microstructure, Mechanical, and Fracture Behaviors of TLP Bonded Joints of Al2219 with a Cu Interlayer

Vatnalmath,

Auradi,

et al. 2023

ACS Omega

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The present study aims at producing transient liquid phase (TLP) bonded Al2219 joints with pure Cu (copper) as an interlayer. The TLP bonding is carried out at the bonding temperatures in the range of 480 to 520 °C while keeping the bonding pressure (2 MPa) and time (30 min.) constant. Reaction layers are formed at the Al-Cu interface with a significant increase in diffusion depth with the increase in the bonding temperature. The microstructural investigations are carried out using scanning electron microscopy and energy-dispersive spectroscopy. X-ray diffraction study confirms the formation of CuAl2, CuAl, and Cu9Al4 intermetallic compounds across the interface of the bonded specimens. An increase in microhardness is observed across the bonding zone with the increase in the bonding temperature, and a maximum hardness value of 723 Hv is obtained on the diffusion zone of the specimen bonded at 520 °C. Furthermore, the fractography study of the bonded specimens is carried out, and a maximum shear strength of 18.75 MPa is observed on the joints produced at 520 °C.

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Diffusion bonding through interlayers

Cited by 15 publications

References 1 publication

Diffusion bonding of a titanium alloy to austenitic stainless steel using copper as an interlayer

Diffusion bonding of a titanium alloy to austenitic stainless steel using copper as an interlayer

Effect of surface oxide layers in solid-state welding of aluminium alloys – review

Impact of Bonding Temperature on Microstructure, Mechanical, and Fracture Behaviors of TLP Bonded Joints of Al2219 with a Cu Interlayer

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