Ultrafast artificial aging of Al-Mg-Si alloys

Marion Werinos; Helmut Antrekowitsch; E. Kozeschnik; Thomas Ebner; J. F. Löffler; Peter Uggowitzer; Stefan Pogatscher

Ultrafast artificial aging of Al-Mg-Si alloys

Marion Werinos, Helmut Antrekowitsch, E. Kozeschnik, Thomas Ebner, J. F. Löffler, Peter Uggowitzer, Stefan Pogatscher

Chair of Nonferrous Metallurgy (520)

Research output: Contribution to journal › Article › Research › peer-review

50 Citations (Scopus)

Abstract

This study investigates the effect of trace Sn additions on the artificial aging of an Al–Mg–Si alloy at unconventionally high temperatures (> 210 °C), where such additions generate both ultrafast aging kinetics and superior peak hardness. The study shows that the effect of Sn is comparable to the influence of natural pre-aging on high temperature artificial aging, and explains this by solute-vacancy interactions, proposing that during artificial aging Sn-vacancy pairs contribute to diffusion and/or Sn retards the annihilation of quenched-in vacancies.

Original language	English
Pages (from-to)	148-151
Journal	Scripta materialia
Volume	112
Publication status	Published - 2016

Keywords

Aging
Aluminum alloys
Phase transformation kinetics
precipitation
Vacancies

Cite this

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title = "Ultrafast artificial aging of Al-Mg-Si alloys",

abstract = "This study investigates the effect of trace Sn additions on the artificial aging of an Al–Mg–Si alloy at unconventionally high temperatures (> 210 °C), where such additions generate both ultrafast aging kinetics and superior peak hardness. The study shows that the effect of Sn is comparable to the influence of natural pre-aging on high temperature artificial aging, and explains this by solute-vacancy interactions, proposing that during artificial aging Sn-vacancy pairs contribute to diffusion and/or Sn retards the annihilation of quenched-in vacancies.",

keywords = "Aging; Aluminum alloys; Phase transformation kinetics; precipitation; Vacancies, Aging, Aluminum alloys, Phase transformation kinetics, precipitation, Vacancies",

author = "Marion Werinos and Helmut Antrekowitsch and E. Kozeschnik and Thomas Ebner and L{\"o}ffler, {J. F.} and Peter Uggowitzer and Stefan Pogatscher",

year = "2016",

language = "English",

volume = "112",

pages = "148--151",

journal = "Scripta materialia",

issn = "1359-6462",

publisher = "Elsevier",

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TY - JOUR

T1 - Ultrafast artificial aging of Al-Mg-Si alloys

AU - Werinos, Marion

AU - Antrekowitsch, Helmut

AU - Kozeschnik, E.

AU - Ebner, Thomas

AU - Löffler, J. F.

AU - Uggowitzer, Peter

AU - Pogatscher, Stefan

PY - 2016

Y1 - 2016

N2 - This study investigates the effect of trace Sn additions on the artificial aging of an Al–Mg–Si alloy at unconventionally high temperatures (> 210 °C), where such additions generate both ultrafast aging kinetics and superior peak hardness. The study shows that the effect of Sn is comparable to the influence of natural pre-aging on high temperature artificial aging, and explains this by solute-vacancy interactions, proposing that during artificial aging Sn-vacancy pairs contribute to diffusion and/or Sn retards the annihilation of quenched-in vacancies.

AB - This study investigates the effect of trace Sn additions on the artificial aging of an Al–Mg–Si alloy at unconventionally high temperatures (> 210 °C), where such additions generate both ultrafast aging kinetics and superior peak hardness. The study shows that the effect of Sn is comparable to the influence of natural pre-aging on high temperature artificial aging, and explains this by solute-vacancy interactions, proposing that during artificial aging Sn-vacancy pairs contribute to diffusion and/or Sn retards the annihilation of quenched-in vacancies.

KW - Aging; Aluminum alloys; Phase transformation kinetics; precipitation; Vacancies

KW - Aging

KW - Aluminum alloys

KW - Phase transformation kinetics

KW - precipitation

KW - Vacancies

M3 - Article

SN - 1359-6462

VL - 112

SP - 148

EP - 151

JO - Scripta materialia

JF - Scripta materialia

ER -