Cristin-resultat-ID: 1120146
Sist endret: 30. september 2014, 14:10
NVI-rapporteringsår: 2014
Resultat
Vitenskapelig artikkel
2014

The influence of microchemistry on the softening behaviour of two cold-rolled Al-Mn-Fe-Si alloys

Bidragsytere:
  • Ke Huang
  • Ning Wang
  • Yanjun Li og
  • Knut Marthinsen

Tidsskrift

Materials Science & Engineering: A
ISSN 0921-5093
e-ISSN 1873-4936
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2014
Publisert online: 2014
Trykket: 2014
Volum: 601
Sider: 86 - 96
Open Access

Importkilder

Scopus-ID: 2-s2.0-84896870289

Beskrivelse Beskrivelse

Tittel

The influence of microchemistry on the softening behaviour of two cold-rolled Al-Mn-Fe-Si alloys

Sammendrag

The influence of microchemistry on the softening behaviour of two cold-rolled Al–Mn–Fe–Si alloys with different initial amounts of Mn (0.4 and 1.0 wt%) is studied. In addition to their as-cast conditions, the supersaturated Al–Mn–Fe-Si alloys were appropriately homogenized at two different conditions, which together produce three different states of microchemistry for each alloy, i.e. solutes and second-phase particles. Samples with different microchemistry states were then cold-rolled before subsequent back-annealing at different temperatures for the two alloys. The softening and concurrent precipitation behaviours of the samples have been monitored by hardness and electrical conductivity measurements ,respectively, and the final microstructure in terms of grain structure and texture has been characterized by EBSD. It is clearly demonstrated that the amount of Mn and the actual microchemistry state as determined by the homogenization procedure strongly influence the softening behaviour. Both a fine dispersion of pre-existing dispersoids and strong concurrent precipitation may slow down the recrystallization kinetics considerably and give a very coarse grain structure and textures commonly associated with dispersoids effects, although some are slightly atypical.

Bidragsytere

Ke Huang

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet

Ning Wang

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet

Yanjun Li

  • Tilknyttet:
    Forfatter
    ved Metallproduksjon og prosessering ved SINTEF AS
  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet

Knut Marthinsen

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet
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