Characterization and modeling of precipitation kinetics in an Al-Zn-Mg alloy

被引：166

作者：

Werenskiold, JC ^{[1
]}

Deschamps, A ^{[1
]}

Bréchet, Y ^{[1
]}

机构：

[1] ENSEEG, LTPCM, UMR 5614, F-38402 St Martin Dheres, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 293卷 / 1-2期

关键词：

Al-Zn-Mg alloy; precipitation kinetics; isothermal heat treatments; modeling; small angle scattering;

D O I：

10.1016/S0921-5093(00)01247-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The precipitation kinetics in AA7108.70 Al-Zn-Mg alloy have been investigated by small angle X-ray scattering and transmission electron microscopy, and computer modeled by use of an internal state variable model concerning two regimes, (i) precipitation and growth and (ii) growth and coarsening. The modeling and experiments were done for isothermal heat treatment at 120, 140, 150, 160 and 170 degrees C. These treatments were also compared with the industrial two step T6 treatment. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：267 / 274

页数：8

共 13 条

[1]

Deschamps A, 1997, Z METALLKD, V88, P601

[2] Influence of quench and heating rates on the ageing response of an Al-Zn-Mg-(Zr) alloy [J].

Deschamps, A ;

Brechet, Y .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 251 (1-2) :200-207

[3] Influence of predeformation and ageing of an Al-Zn-Mg alloy - II. Modeling of precipitation kinetics and yield stress [J].

Deschamps, A ;

Brechet, Y .

ACTA MATERIALIA, 1998, 47 (01) :293-305

[4]

Glatter O., 1982, SMALL ANGLE XRAY SCA

[5]

GROMA G, 1975, PHILOS MAG, P869

[6]

HANSEN V, 2000, INTERNAL REPORT

[7] DISSOLUTION OF 2ND PHASES IN AN AL-ZN-MG ALLOY INVESTIGATED BY CALORIMETRIC METHOD [J].

LENDVAI, J ;

HONYEK, G ;

KOVACS, I .

SCRIPTA METALLURGICA, 1979, 13 (07) :593-594

[8]

LI XZ, 1999, ACTA MAT, V44, P9

[9] INFLUENCE OF PRE-AGEING AND THE COOLING RATE ON THE DECOMPOSITION PROCESSES TAKING PLACE DURING ARTIFICIAL AGING IN AL-ZN-4.5AT0-DEGREES-MG-X-ALLOYS [J].

LOFFLER, H ;

KABISCH, O ;

GUEFFROY, B ;

RADOMSKY, M ;

HONYEK, G ;

UNGAR, T .

KRISTALL UND TECHNIK-CRYSTAL RESEARCH AND TECHNOLOGY, 1979, 14 (06) :721-728

[10] DECOMPOSITION PROCESSES IN AL-ZN-MG ALLOYS [J].

LOFFLER, H ;

KOVACS, I ;

LENDVAI, J .

JOURNAL OF MATERIALS SCIENCE, 1983, 18 (08) :2215-2240

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