Stress dependence of the transition behaviour in multi-mechanism creep reactions: With special reference to zinc
- 1 November 1964
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 10 (107), 861-870
- https://doi.org/10.1080/14786436408225389
Abstract
Creep of polycrystalline zinc was found to be controlled by two thermally activated mechanisms acting in parallel with activation energies of: Q 1 = 23·2 and Q 2 = 36·3 kcal/mole. Corresponding stress dependencies are according to [sgrave] n with n 1 = 4·7 and n 2=4·0. Regions of constant energy indicative of predominant control by one mechanism are separated by a transition region where neither mechanism is rate controlling. The reciprocal mean temperature, where each mechanism contributes equally to the observed creep rate, is related to the applied stress by This work has been sponsored by the Division of Industrial Research, Institute of Technology, Washington State University.Keywords
This publication has 5 references indexed in Scilit:
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- Activation energies for high temperature creep of polycrystalline magnesiumActa Metallurgica, 1961
- Pyramidal glide and the formation and climb of dislocation loops in nearly perfect zinc crystalsPhilosophical Magazine, 1960
- Activation energies for high temperature creep of polycrstalline zincPhilosophical Magazine, 1958
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