Effect of alloying elements on the strength and casting characteristics of high strength Al-Zn-Mg-Cu alloys

被引：6

作者：

Kim, KT ^{[1
]}

Kim, JM ^{[1
]}

Sung, KD ^{[1
]}

Jun, JH ^{[1
]}

Jung, WJ ^{[1
]}

机构：

[1] Korea Inst Ind Technol, Adv Mat Dev Ctr, Inchon, South Korea

来源：

PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 | 2005年 / 475-479卷

关键词：

Al; Zn; strength; heat treatment; castability; microstructure;

D O I：

10.4028/www.scientific.net/MSF.475-479.2539

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Small amounts of various alloying elements were added to a high strength AI-Zn-Mg-Cu alloy and their effects on the microstructure, mechanical properties, and casting characteristics were investigated. Silicon additions with or without extra Mg to the AI-Zn-Mg-Cu alloy could enhance the castability such as fluidity, feedability, and hot tearing resistance significantly while maintaining a high strength. However, in these alloys containing silicon the compositional adjustment was necessary to prevent the Mg2Si phase formation from degrading the precipitation of MgZn2 phase that is responsible for the high strength. Zr addition to the base alloy was also observed to improve the feedability without deteriorating the tensile strength.

引用

页码：2539 / 2542

页数：4

共 9 条

[1]

[Anonymous], ASM SPECIALTY HDB AL

[2] Accelerated artificial ageing regimes of commercial aluminium alloys. II: Al-Cu, Al-Zn-Mg-(Cu), Al-Mg-Si-(Cu) alloys [J].

Ber, LB .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 280 (01) :91-96

[3]

Campbell J., 2003, CASTINGS, P253

[4]

CARDARELLI F, 2000, MAT HDB, P530

[5]

HAN YS, 1999, J KOREAN FOUNDRYMENS, V19, P384

[6]

NIYAMA E, 1997, J MATER PROCESS TECH, V63, P779

[7] Effect of predeformation and preaging at room temperature in Al-Zn-Mg-(Cu,Zr) alloys [J].

Waterloo, G ;

Hansen, V ;

Gjonnes, J ;

Skjervold, SR .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 303 (1-2) :226-233

[8] Microstructure and properties of a new super-high-strength Al-Zn-Mg-Cu alloy C912 [J].

Wu, YL ;

Froes, FH ;

Alvarez, A ;

Li, CG ;

Liu, J .

MATERIALS & DESIGN, 1997, 18 (4-6) :211-215

[9]

Zheng M, 2002, MET MATER-INT, V8, P507

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