Evolution of microstructure and precipitates with cycle annealing temperature of an Al-6Mg-Mn-Sc-Zr alloy

Jianhua Liu; Binwu Tao; Songmei Li; Ming Li

doi:10.1080/10426910600727858

Evolution of microstructure and precipitates with cycle annealing temperature of an Al-6Mg-Mn-Sc-Zr alloy

Jianhua Liu^*
, Binwu Tao
, Songmei Li
, Ming Li

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

5 Scopus citations

Abstract

The effect of cycle annealing temperature on the grain structure and precipitates of an Al-6Mg-Sc-Zr alloy was studied. It was found that the deformation grain structure was very stable between 200-500°C, and the alloy maintained a microhardness of about 110 HV/Mpa up to 450°C, indicating recrystallization of the cold rolling alloy was strongly inhibited in cycle annealing treatment. The evolution of the primary Al₃(Sc, Zr) and (Fe, Mn)Al₆ precipitates in alloy was inconspicuous. The size of β-phase precipitates changed from fine dots into large, and it is distributed homogenously as a fine dispersion at lower temperature, then evolves into discrete, discontinuous particles along boundaries at 500°C. It is believed that this evolution of grain structure and precipitates with cycle annealing temperature was mainly due to the existence of the secondary Al ₃ (Sc, Zr) precipitates.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Materials and Manufacturing Processes
Volume	22
Issue number	1
DOIs	https://doi.org/10.1080/10426910600727858
State	Published - Jan 2007

Keywords

Al (Sc, Zr) precipitate
Al-Mg-Sc-Zr alloy
Cycle annealing
Recrystallization
β-phase

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10.1080/10426910600727858

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title = "Evolution of microstructure and precipitates with cycle annealing temperature of an Al-6Mg-Mn-Sc-Zr alloy",

abstract = "The effect of cycle annealing temperature on the grain structure and precipitates of an Al-6Mg-Sc-Zr alloy was studied. It was found that the deformation grain structure was very stable between 200-500°C, and the alloy maintained a microhardness of about 110 HV/Mpa up to 450°C, indicating recrystallization of the cold rolling alloy was strongly inhibited in cycle annealing treatment. The evolution of the primary Al3(Sc, Zr) and (Fe, Mn)Al6 precipitates in alloy was inconspicuous. The size of β-phase precipitates changed from fine dots into large, and it is distributed homogenously as a fine dispersion at lower temperature, then evolves into discrete, discontinuous particles along boundaries at 500°C. It is believed that this evolution of grain structure and precipitates with cycle annealing temperature was mainly due to the existence of the secondary Al 3 (Sc, Zr) precipitates.",

keywords = "Al (Sc, Zr) precipitate, Al-Mg-Sc-Zr alloy, Cycle annealing, Recrystallization, β-phase",

author = "Jianhua Liu and Binwu Tao and Songmei Li and Ming Li",

year = "2007",

month = jan,

doi = "10.1080/10426910600727858",

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volume = "22",

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TY - JOUR

T1 - Evolution of microstructure and precipitates with cycle annealing temperature of an Al-6Mg-Mn-Sc-Zr alloy

AU - Liu, Jianhua

AU - Tao, Binwu

AU - Li, Songmei

AU - Li, Ming

PY - 2007/1

Y1 - 2007/1

N2 - The effect of cycle annealing temperature on the grain structure and precipitates of an Al-6Mg-Sc-Zr alloy was studied. It was found that the deformation grain structure was very stable between 200-500°C, and the alloy maintained a microhardness of about 110 HV/Mpa up to 450°C, indicating recrystallization of the cold rolling alloy was strongly inhibited in cycle annealing treatment. The evolution of the primary Al3(Sc, Zr) and (Fe, Mn)Al6 precipitates in alloy was inconspicuous. The size of β-phase precipitates changed from fine dots into large, and it is distributed homogenously as a fine dispersion at lower temperature, then evolves into discrete, discontinuous particles along boundaries at 500°C. It is believed that this evolution of grain structure and precipitates with cycle annealing temperature was mainly due to the existence of the secondary Al 3 (Sc, Zr) precipitates.

AB - The effect of cycle annealing temperature on the grain structure and precipitates of an Al-6Mg-Sc-Zr alloy was studied. It was found that the deformation grain structure was very stable between 200-500°C, and the alloy maintained a microhardness of about 110 HV/Mpa up to 450°C, indicating recrystallization of the cold rolling alloy was strongly inhibited in cycle annealing treatment. The evolution of the primary Al3(Sc, Zr) and (Fe, Mn)Al6 precipitates in alloy was inconspicuous. The size of β-phase precipitates changed from fine dots into large, and it is distributed homogenously as a fine dispersion at lower temperature, then evolves into discrete, discontinuous particles along boundaries at 500°C. It is believed that this evolution of grain structure and precipitates with cycle annealing temperature was mainly due to the existence of the secondary Al 3 (Sc, Zr) precipitates.

KW - Al (Sc, Zr) precipitate

KW - Al-Mg-Sc-Zr alloy

KW - Cycle annealing

KW - Recrystallization

KW - β-phase

UR - https://www.scopus.com/pages/publications/33845809169

U2 - 10.1080/10426910600727858

DO - 10.1080/10426910600727858

M3 - 文章

AN - SCOPUS:33845809169

SN - 1042-6914

VL - 22

SP - 1

EP - 4

JO - Materials and Manufacturing Processes

JF - Materials and Manufacturing Processes

IS - 1

ER -

Evolution of microstructure and precipitates with cycle annealing temperature of an Al-6Mg-Mn-Sc-Zr alloy

Abstract

Keywords

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