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Titolo:
The effect of low strain and annealing iterations on the ductility of alpha-brass
Autore:
Davies, H; Randle, V;
Indirizzi:
Univ Coll Swansea, Dept Mat Engn, Swansea SA2 8PP, W Glam, Wales Univ CollSwansea Swansea W Glam Wales SA2 8PP sea SA2 8PP, W Glam, Wales
Titolo Testata:
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS ANDMECHANICAL PROPERTIES
fascicolo: 11, volume: 81, anno: 2001,
pagine: 2553 - 2564
SICI:
1364-2804(200111)81:11<2553:TEOLSA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
GRAIN-BOUNDARY DESIGN; NICKEL; POLYCRYSTALS; CORROSION; ALLOYS; GROWTH; TWINS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Randle, V Univ Coll Swansea, Dept Mat Engn, Swansea SA2 8PP, W Glam, WalesUniv Coll Swansea Swansea W Glam Wales SA2 8PP P, W Glam, Wales
Citazione:
H. Davies e V. Randle, "The effect of low strain and annealing iterations on the ductility of alpha-brass", PHIL MAG A, 81(11), 2001, pp. 2553-2564

Abstract

This paper reports a study of the relationship between purpose-designed, iterative multi-stage thermomechanical treatments, grain boundary crystallography and subsequent ductility in alpha-brass. Grain boundary crystallographies were analysed not only in terms of proportions of coincidence site lattice (CSL) types but also, crucially, as proximity to the exact CSL reference structure. The only CSLs that were present in significant proportions were Sigma 3s, and those Sigma 3s with intermediate proximity to the exact CSL misorientation were identified as high mobility boundaries. Variation in mobility at a Sigma3 as a function of deviation from the exact CSL configuration is discussed in detail. For two selected specimens modifying the strain-annealing regimes resulted in ductilities of 53% and 74% respectively. The enhanced ductility in one specimen is probably the result of a combination of strain-induced grain growth and increased proportions of Sigma 3s with intermediate proximity to the exact CSL misorientation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 03:49:15