Dislocation creep in particle-strengthened systems

Balakrishna Bhat, T. ; Arunachalam, V. S. (1977) Dislocation creep in particle-strengthened systems Journal of Materials Science, 12 (11). pp. 2241-2245. ISSN 0022-2461

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Official URL: http://www.springerlink.com/content/u586q47h38k575...

Related URL: http://dx.doi.org/10.1007/BF00552246


A model for climb-controlled creep in two-phase materials is proposed which invokes the presence of a back-stress for providing the necessary mobile dislocations for creep. It is shown that by incorporating this stress in the creep equation it is possible to reduce both the activation energy for creep and the stress exponents to values normally observed in single-phase materials. Creep data on TD nickel and yttriated superalloy when analysed on this basis confirm the applicability of this model.

Item Type:Article
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ID Code:1102
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