Solid-State Diffusion Bonding of Titanium by Using Metal Salt Coated Aluminum Sheet

Shinji Koyama; Van Phu Nguyen

doi:10.4028/www.scientific.net/KEM.741.31

Paper Titles

Influence of Sintering Conditions on Mechanical Properties of Ag-Nano Sintered Material
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Development of Evaluation Method that Takes into Account the Effect of the Fine Structure of Adhesive Interface for Delamination Strength of the Packaging Resin
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Fracture Toughness of Massively Transformed and Subsequently Heat Treated TiAl Intermetallic Compound
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Solid-State Diffusion Bonding of Titanium by Using Metal Salt Coated Aluminum Sheet
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Mechanical Stability and Deformation-Induced Transformation of Retained Austenite in TRIP Steels at Low Temperatures
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Influence of Chloride for SCC Susceptibility on 15Cr Stainless Steel at High Temperatures under CO₂ Environment
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Potentiodynamic Polarization and Electrochemical Impedance Spectroscopy Used for Prediction of Nitinol Stent’s Lifetime
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Analysis on Critical CTOD of Long-Term Used Penstock
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 741Solid-State Diffusion Bonding of Titanium by Using...

Solid-State Diffusion Bonding of Titanium by Using Metal Salt Coated Aluminum Sheet

Abstract:

In this study, the effect of metal salt coating processing of aluminum surface on the bond strength of the solid-state diffusion bonded interface of titanium and aluminum has been investigated by SEM observation of the interfacial microstructures and fractured surfaces after tensile test. Aluminum surfaces were coated by boiling in 5% aqueous solution of NaOH for 90 s and 98% formic acid for 60 s. Bonding process was performed at a bonding temperature of 713 ~ 773 K under a load of 12 MPa (for a bonding time of 900 s). As a result of the metal salt coating processing, high strength joint can be achieved with lower bonding temperature compared with unmodified joints. From this study, it is found out that metal salt coating processing is effective at removing oxide film and substitution to metal salt on the aluminum bonding surface.

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Periodical:

Key Engineering Materials (Volume 741)

Pages:

31-35

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.741.31

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Online since:

June 2017

Authors:

Shinji Koyama*, Van Phu Nguyen

Keywords:

Aluminum, Bonding Strength, Formic Acid, Fracture, Surface Modification, Titanium

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