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Evaluation of Ni film interfacial energy release rate on titanium and stainless steel substrates

Evaluation of Ni film interfacial energy release rate on titanium and stainless steel substrates An expression including the effect of residual stress on the interfacial energy release rate is proposed for peeling experiments according to the energy-balance argument. The influence of residual stress on the external work is also contained in the expression. Two numerical methods are employed to evaluate the values of the work expenditureGdb, which is the actual energy dissipated during bending of the peel arm near the peel front. The peeling method is employed to test the interfacial energy release rates,G, for Ni films on Titanium and stainless steel substrates. The results indicate that the value ofG for Ni films on stainless steel substrate is about 5.47–6.03 N/m, while 5.23–6.71 N/m for Ni films on titanium substrate; the interfacial energy release rates,G, do not depend on the residual stress in film, film thickness nor peel angle. The effect of residual stress in film on peel strengthP/h is also discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Metals and Materials Springer Journals

Evaluation of Ni film interfacial energy release rate on titanium and stainless steel substrates

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References (14)

Publisher
Springer Journals
Copyright
Copyright © Springer 2002
ISSN
1598-9623
DOI
10.1007/bf03027007
Publisher site
See Article on Publisher Site

Abstract

An expression including the effect of residual stress on the interfacial energy release rate is proposed for peeling experiments according to the energy-balance argument. The influence of residual stress on the external work is also contained in the expression. Two numerical methods are employed to evaluate the values of the work expenditureGdb, which is the actual energy dissipated during bending of the peel arm near the peel front. The peeling method is employed to test the interfacial energy release rates,G, for Ni films on Titanium and stainless steel substrates. The results indicate that the value ofG for Ni films on stainless steel substrate is about 5.47–6.03 N/m, while 5.23–6.71 N/m for Ni films on titanium substrate; the interfacial energy release rates,G, do not depend on the residual stress in film, film thickness nor peel angle. The effect of residual stress in film on peel strengthP/h is also discussed.

Journal

Metals and MaterialsSpringer Journals

Published: Apr 1, 2002

Keywords: peel test; interfacial energy release rate; peel strength; film thickness; residual stress; peel angle

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