Paper Titles
Change of Mechanical Properties of FM Steels after Thermal Aging
p.1413
Effect of Heat Treatment on Compressive Properties of Open Cell Aluminum Foams
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Effects of Mischmetal Addition on the Microstructural Characteristics of BCuP-2 Brazing Filler Metal
p.1421
Observation of Dynamic Behavior in Primer-Coated Steel Welding by CO2 Laser
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Solid State Diffusion Bonding of Titanium Alloys
p.1429
The Heat Treatment Characteristics of Hydroxyapatite Thin Films Deposited by RF Sputtering
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Effect of Post-ECAP Aging on Mechanical Properties of Age-Hardenable Aluminum Alloys
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Microstructure Changed during Accumulative Roll Bonding of Al/Mg Composite
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Solid State Diffusion Bonding of Titanium Alloys

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Abstract:

Solid State diffusion bonding is obtained by applying heat, well below the melting temperature of the metals, a static pressure which does not cause a macroscopic plastic deformation in the material, and a time required to form a metallurgical bond with atomic diffusion process. This process is used for aluminum alloys, high strength steels and titanium alloys in the aerospace industry to produce complex and inaccessible joints without localized distortion. Ability to diffusion bond titanium alloys is strongly needed to promote the use of superplastic forming technology. In the present work, the solid state diffusion bonding was carried out using specimens in Ti-6Al-4V and Ti-15V-3Cr-3Sn-3Al. The microstructure of the bonded interface indicates the diffusion bonding process is successful for both alloys. It is also shown that the diffusion bonding of a superplastic Ti-6Al-4V alloy is possible at the optimum superplastic condition so that two processes can be performed simultaneously. The structural integrity of diffusion bonding was evaluated with a hydraulic test of diffusion bonded part.

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Periodical:

Solid State Phenomena (Volumes 124-126)

Pages:

1429-1432

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.1429

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Online since:

June 2007

Authors:

Ho Sung Lee, Jong Hoon Yoon, Yeong Moo Yi

Keywords:

Diffusion Bonding (DB), Solid State Joining, Super Plastic Forming (SPF), TiAl

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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