Understanding creep: a review

A simple model based on the Orowan equation and the dynamic evolution of the dislocation structure by generation and merging of slipped areas is used to see which experimental results on creep of pure and solute-hardened crystalline materials can or cannot be explained with regard to creep with refi...

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Veröffentlicht in:	Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2002-02, Vol.33 (2), p.291-303
Hauptverfasser:	BLUM, W, EISENLOHR, P, BREUTINGER, F
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: structure, mechanical and thermal properties Creep Crystals Exact sciences and technology Materials science Mechanical and acoustical properties of condensed matter Mechanical properties of solids Metallurgy Metals. Metallurgy Physics
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Beschreibung
Zusammenfassung:	A simple model based on the Orowan equation and the dynamic evolution of the dislocation structure by generation and merging of slipped areas is used to see which experimental results on creep of pure and solute-hardened crystalline materials can or cannot be explained with regard to creep with refinement or coarsening of the dislocation structure and steady-state creep. Quantitative deficiencies of the model for pure materials are discussed; most of them are related to neglection of subgrain formation.
ISSN:	1073-5623 1543-1940
DOI:	10.1007/s11661-002-0090-9