The Open UniversitySkip to content
 

Separation of macroscopic, elastic mismatch and thermal expansion misfit stresses in metal matrix composite quenched plates from neutron diffraction measurements

Fitzpatrick, M. E.; Hutchings, M. T. and Withers, P. J. (1997). Separation of macroscopic, elastic mismatch and thermal expansion misfit stresses in metal matrix composite quenched plates from neutron diffraction measurements. Acta Materialia, 45(12) pp. 4867–4876.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1016/S1359-6454(97)00209-7
Google Scholar: Look up in Google Scholar

Abstract

Neutron diffraction measurements of the strain profile in a quenched plate of an aluminium-silicon carbide particle-reinforced metal matrix composite are reported. The results have been used to evaluate the efficacy of an analysis technique which allows distinction of the stiffness mismatch and shape misfit stresses between the matrix and reinforcement, as well as between these and any macrostress present. The analysis is presented for measurements made on a metal matrix composite plate which, as a consequence of quenching from elevated temperature, shows large variations in residual stress as a function of position through the plate thickness. The measurements illustrate the additional insight which can be obtained through the separation of the elastic mismatch and thermal misfit stresses. The stress components thus obtained show good agreement with calculated long-range residual and mismatch stresses.

Item Type: Journal Article
Copyright Holders: 1997 Acta Metallurgica Inc.
ISSN: 1359-6454
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Item ID: 11281
Depositing User: Michael E. Fitzpatrick
Date Deposited: 07 Aug 2008 10:33
Last Modified: 13 Feb 2014 11:09
URI: http://oro.open.ac.uk/id/eprint/11281
Share this page:

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk