Producing a vacuum in the contact gap in diffusion bonding of titanium

Since in heating, the physical-chemical state of the contact surfaces depends on the concentration (pressure) of the oxidizing gas in the contact gap, to determine the conditions of clearing the surfaces to remove oxides it is essential to know the pressure of the gas. However, in the direct experim...

Full description

Saved in:
Bibliographic Details
Published in:Welding international 2005-04, Vol.19 (4), p.312-317
Main Authors: Peshkov, V V, Besplokhotnyi, G P, Usacheva, L V, Petrenko, V R
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Since in heating, the physical-chemical state of the contact surfaces depends on the concentration (pressure) of the oxidizing gas in the contact gap, to determine the conditions of clearing the surfaces to remove oxides it is essential to know the pressure of the gas. However, in the direct experiments, the introduction into the contact zone of any device measuring the concentration or pressure of the gas distorts the situation in the contact gap as a result of a large increase of its volume. In this work, this problem is solved on the basis of analysis and modelling of the processes taking place on the contact gap in heating two titanium sheets placed on top of each other.
ISSN:0950-7116
1754-2138
DOI:10.1533/wint.2005.3452