Cristin-resultat-ID: 1922928
Sist endret: 11. februar 2022, 09:33
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

The Interactions Between Oxide Film Inclusions and Inoculation Particles TiB2 in Aluminum Melt

Bidragsytere:
  • Jiawei Yang
  • Sarina Bao
  • Shahid Akhtar og
  • Yanjun Li

Tidsskrift

Metallurgical and Materials Transactions B
ISSN 1073-5615
e-ISSN 1543-1916
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Volum: 52B
Sider: 2497 - 2508
Open Access

Importkilder

Scopus-ID: 2-s2.0-85106322735

Beskrivelse Beskrivelse

Tittel

The Interactions Between Oxide Film Inclusions and Inoculation Particles TiB2 in Aluminum Melt

Sammendrag

In this work, a systematic study on the interactions between aluminum oxide films and TiB2 grain refiner particles and their effect on grain refinement behavior have been conducted. Oxide f ilms were introduced into a commercial purity aluminum melt by adding AA 6061 alloy chips while the grain refiner particles were introduced by adding Al-3T-1B master alloy. Strong sedimentation of TiB2 grain refiner particles was observed in aluminum melt without chip addition during long-time settling. Most of the TiB2 particles were settled and accumulated at the bottom of crucible. In contrast, the sedimentation of TiB2 particles is much less in the melt with the addition of oxide films. A large fraction of TiB2 particles were found to be adhered to the oxide films located at the top part of the crucible, which inhibited the sedimentation of grain refiner particles. TP-1 type tests were also done to study the grain refinement efficiency of Al-3Ti-1B master alloy under different melt cleanliness and settling time. It is found that sedimentation of TiB2 particles greatly reduces the grain refinement efficiency. The introduction of oxide films seems to slightly alleviate the fading effect. This is owing to the strong adherence between the oxide films and TiB2 particles, which leads to a retardation of particle sedimentation.

Bidragsytere

Jiawei Yang

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

Sarina Bao

  • Tilknyttet:
    Forfatter
    ved Metallproduksjon og prosessering ved SINTEF AS

Shahid Akhtar

  • Tilknyttet:
    Forfatter
    ved Norsk Hydro ASA

Yanjun Li

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