Effects of Cu and pre-aging on the clustering behavior in Al-Mg-Si alloys

被引：6

作者：

Liu, Tian ^{[1
]}

Scholtz, Juliane ^{[1
]}

Xue, Fei ^{[1
]}

Yung, Audrey ^{[1
]}

Guiglionda, Gilles ^{[2
]}

Marquis, Emmanuelle A. ^{[1
]}

机构：

[1] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48105 USA

[2] Constellium Technol Ctr C TEC, Voreppe, France

来源：

MATERIALIA | 2023年 / 32卷

关键词：

Al; -Mg; -Si; Al-Mg-Si-Cu; Pre-aging; Natural aging; Solute clustering; APT; ATOM-PROBE TOMOGRAPHY; BAKE-HARDENING BEHAVIOR; PRECIPITATION BEHAVIOR; BETA''-PHASE; AA6111; 1ST-PRINCIPLES; KINETICS; COPPER; MODEL;

D O I：

10.1016/j.mtla.2023.101917

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The clustering behaviors in two Al-Mg-Si alloys with and without Cu after different pre-aging and natural aging conditions were systematically quantified using microhardness, differential scanning calorimetry (DSC), and atom probe tomography. Cu addition slowed down the natural aging process after either solutionizing or preaging regardless of pre-aging temperature and time, and reduced the negative effect of post pre-aging natural aging on beta" precipitation by changing the composition of the Mg and Si rich clusters. This work complements the limited literature on the effect of long natural aging, and provides insights into the impacts of alloy composition and storage time on precipitation behavior during subsequent artificial aging.

引用

页数：9

共 51 条

[1] The crystal structure of the β" phase in Al-Mg-Si alloys [J].

Andersen, SJ ;

Zandbergen, HW ;

Jansen, J ;

Traeholt, C ;

Tundal, U ;

Reiso, O .

ACTA MATERIALIA, 1998, 46 (09) :3283-3298

[2] Effects of natural aging after pre-aging on clustering and bake-hardening behavior in an Al-Mg-Si alloy [J].

Aruga, Yasuhiro ;

Kozuka, Masaya ;

Takaki, Yasuo ;

Sato, Tatsuo .

SCRIPTA MATERIALIA, 2016, 116 :82-86

[3] Exploring the hidden world of solute atoms, clusters and vacancies in aluminium alloys [J].

Banhart, John ;

Yang, Zi ;

Liu, Meng ;

Madanat, Mazen ;

Zhang, Xingpu ;

Guo, Qianning ;

Yan, Yong ;

Roehsler, Andreas ;

Fricke, Konrad ;

Liang, Zeqin ;

Leyvraz, David ;

Hoell, Armin ;

Gericke, Eike ;

Wendt, Robert ;

Liu, Chunhui .

17TH INTERNATIONAL CONFERENCE ON ALUMINIUM ALLOYS 2020 (ICAA17), 2020, 326

[4] Pre-aging to improve bake hardening in a twin-roll cast Al-Mg-Si alloy [J].

Birol, Y .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 391 (1-2) :175-180

[5] The effects of preaging treatments on aging kinetics and mechanical properties in AA6111 aluminum autobody sheet [J].

Bryant, JD .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (08) :1999-2006

[6] Secondary precipitation in an Al-Mg-Si-Cu alloy [J].

Buha, J. ;

Lumley, R. N. ;

Crosky, A. G. ;

Hono, K. .

ACTA MATERIALIA, 2007, 55 (09) :3015-3024

[7] A first-principles study of the β"-phase in Al-Mg-Si alloys [J].

Derlet, PM ;

Andersen, SJ ;

Marioara, CD ;

Froseth, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (15) :4011-4024

[8] The influence of Cu addition and pre-straining on the natural aging and bake hardening response of Al-Mg-Si alloys [J].

Ding, Lipeng ;

Jia, Zhihong ;

Liu, Yingying ;

Weng, Yaoyao ;

Liu, Qing .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 688 :362-367

[9] Size-dependent diffusion controls natural aging in aluminium alloys [J].

Dumitraschkewitz, Phillip ;

Uggowitzer, Peter J. ;

Gerstl, Stephan S. A. ;

Loeffler, Joerg F. ;

Pogatscher, Stefan .

NATURE COMMUNICATIONS, 2019, 10 (1)

[10] The precipitation sequence in Al-Mg-Si alloys [J].

Edwards, GA ;

Stiller, K ;

Dunlop, GL ;

Couper, MJ .

ACTA MATERIALIA, 1998, 46 (11) :3893-3904

← 1 2 3 4 5 6 →