Investigation on the age-hardening behavior of Al-Si-Cu-Mg cast alloys by mechanical testing, microstructural characterization, and a CNGT based precipitation model

被引：0

作者：

Mao, Fengxin ^{[1
,2
]}

Weidt, Moritz ^{[3
]}

Staron, Peter ^{[4
]}

Busch, Sebastian ^{[5
]}

Stark, Andreas ^{[4
]}

Barrales-Mora, Luis ^{[1
,6
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Metallkunde & Mat Phys, Aachen, Germany

[2] MAGMA Giessereitechnol GmbH, Kackertstr 16-18, D-52072 Aachen, Germany

[3] MAGMA Giessereitechnol GmbH, Aachen, Germany

[4] Helmholtz Zent Geesthacht, Inst Mat Phys, D-21502 Geesthacht, Germany

[5] Helmholtz Zentrum Geesthacht, Heinz Maier Leibnitz Zent MLZ, German Engn Mat Sci Ctr GEMS, D-85748 Garching, Germany

[6] Georgia Inst Technol, George W Woodruff Sch Mech Engn, CNRS 2958, Metz Technopole, 2 Rue Marconi, F-57070 Metz, France

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2023年 / 114卷 / 01期

关键词：

Age hardening; Cast aluminum alloy; Precipitation simulation; SAXS/SANS; TEM; ANGLE NEUTRON-SCATTERING; COMPOSITIONAL EVOLUTION; ALUMINUM ALLOYS; KINETICS; PHASES;

D O I：

10.1515/ijmr-2021-8585

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In the present contribution, the age-hardening behavior of two commercial Al-Si-Cu-Mg alloys was studied during heat treatments at 200 ? and 240 ?. Size and volume fraction of precipitates were characterized by means of transmission electron microscopy, small-angle X-ray scattering, and small angle neutron scattering. Additionally, tensile tests were performed to evaluate the mechanical behavior. Finally, a multi-component multi-phase classical nucleation and growth theory precipitation model was developed to predict the evolution of Mg- and Cu-containing precipitates and their hardening effect. The simulations were in good agreement with experimental findings.

引用

页码：53 / 64

页数：12

共 47 条

[1]

[Anonymous], SCATT LENGTH DENS SL

[2] An Age-Hardening Model for Al-Mg-Si Alloys Considering Needle-Shaped Precipitates [J].

Bahrami, A. ;

Miroux, A. ;

Sietsma, J. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2012, 43A (11) :4445-4453

[3] FactSage thermochemical software and databases, 2010-2016 [J].

Bale, C. W. ;

Belisle, E. ;

Chartrand, P. ;

Decterov, S. A. ;

Eriksson, G. ;

Gheribi, A. E. ;

Hack, K. ;

Jung, I. -H. ;

Kang, Y. -B. ;

Melancon, J. ;

Pelton, A. D. ;

Petersen, S. ;

Robelin, C. ;

Sangster, J. ;

Spencer, P. ;

Van Ende, M-A. .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2016, 54 :35-53

[4] Coupled precipitation and yield strength modelling for non-isothermal treatments of a 6061 aluminium alloy [J].

Bardel, D. ;

Perez, M. ;

Nelias, D. ;

Deschamps, A. ;

Hutchinson, C. R. ;

Maisonnette, D. ;

Chaise, T. ;

Gamier, J. ;

Bourlier, F. .

ACTA MATERIALIA, 2014, 62 :129-140

[5] Effects of heat treatment and addition of small amounts of Cu and Mg on the microstructure and mechanical properties of Al-Si-Cu and Al-Si-Mg cast alloys [J].

Beroual, Said ;

Boumerzoug, Zakaria ;

Paillard, Pascal ;

Borjon-Piron, Yann .

JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 784 :1026-1035

[6] Compositional evolution of Q-phase precipitates in an aluminum alloy [J].

Biswas, Aniruddha ;

Siegel, Donald J. ;

Seidman, David N. .

ACTA MATERIALIA, 2014, 75 :322-336

[7] In situ characterization of β" precipitation in an Al-Mg-Si alloy by anisotropic small-angle neutron scattering on a single crystal [J].

Chang, Cynthia Sin Ting ;

De Geuser, Frederic ;

Banhart, John .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2015, 48 :455-463

[8] Precipitation dependence of thermal properties for Al-Si-Mg-Cu-(Ti) alloy with various heat treatment [J].

Choi, S. W. ;

Cho, H. S. ;

Kang, C. S. ;

Kumai, S. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 647 :1091-1097

[9] 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

[10] The structural and compositional evolution of precipitates in Al-Mg-Si-Cu alloy [J].

Ding, Lipeng ;

Jia, Zhihong ;

Nie, Jian-Feng ;

Weng, Yaoyao ;

Cao, Lingfei ;

Chen, Houwen ;

Wu, Xiaozhi ;

Liu, Qing .

ACTA MATERIALIA, 2018, 145 :437-450

← 1 2 3 4 5 →