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Identifying creep mechanisms at low stresses

Identifying creep mechanisms at low stresses
Identifying creep mechanisms at low stresses
There are three possible mechanisms occurring in high temperature creep at low stresses: diffusion creep, Harper–Dorn creep and grain boundary sliding. This paper examines the characteristics of these three processes and proposes two sets of measurements that may be used to give an unambiguous identification of the dominant creep mechanism. The approach is applied to published creep data and new measurements are reported for a Mg–0.55%Zr alloy which permit a clear distinction between diffusion creep and grain boundary sliding.
creep, denuded zones, diffusion creep, grain boundary sliding, harper–dorn creep
0921-5093
266-273
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Langdon, T.G. (2000) Identifying creep mechanisms at low stresses. Materials Science and Engineering: A, 283 (1-2), 266-273. (doi:10.1016/S0921-5093(00)00624-9).

Record type: Article

Abstract

There are three possible mechanisms occurring in high temperature creep at low stresses: diffusion creep, Harper–Dorn creep and grain boundary sliding. This paper examines the characteristics of these three processes and proposes two sets of measurements that may be used to give an unambiguous identification of the dominant creep mechanism. The approach is applied to published creep data and new measurements are reported for a Mg–0.55%Zr alloy which permit a clear distinction between diffusion creep and grain boundary sliding.

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More information

Published date: 15 May 2000
Keywords: creep, denuded zones, diffusion creep, grain boundary sliding, harper–dorn creep
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 48645
URI: http://eprints.soton.ac.uk/id/eprint/48645
ISSN: 0921-5093
PURE UUID: d0045b96-0df6-4585-a5ad-5cf454984412
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 08 Nov 2007
Last modified: 16 Mar 2024 03:28

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