Effect of Interrupted Quenching on Al-Zn-Mg-Cu Alloys

被引：1

作者：

Kolb, Gernot K. -H. ^{[1
]}

Antrekowitsch, Helmut ^{[1
]}

Poeschmann, Daniel ^{[2
]}

Uggowitzer, Peter J. ^{[3
]}

Pogatscher, Stefan ^{[1
]}

机构：

[1] Univ Leoben, Franz Josef Str 18, A-8700 Leoben, Austria

[2] AMAG Rolling GmbH, POB 32, A-5282 Ranshofen, Austria

[3] ETH, Dept Mat, Lab Met Phys & Technol, Vladimir Prelog Weg 4, CH-8093 Zurich, Switzerland

来源：

LIGHT METALS 2017 | 2017年

关键词：

Aluminum alloys; 7xxx alloys; Al-Zn-Mg-Cu alloys; Ageing; Heat treatment; SERIES ALUMINUM-ALLOYS; MECHANICAL-PROPERTIES; HEAT-TREATMENT; GP-ZONES; PRECIPITATION; BEHAVIOR; MICROSTRUCTURES; PHASES;

D O I：

10.1007/978-3-319-51541-0_48

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Al-Zn-Mg-Cu alloys are widely used in aged-hardened condition for aircraft applications because of their high strength, adequate fracture toughness, stress corrosion cracking resistance and good machinability. In this study the effect of interrupted quenching (I.Q.) from solution temperature to 25-225 degrees C on subsequent artificial ageing was studied. Hardness measurements, tensile tests and instrumented impact tests were used to characterize the mechanical properties of Al-Zn-Mg-Cu plates. The results indicate that a high hardness can be reached directly after I.Q. for medium I.Q. temperatures. Compared to standard water quenching, the results showed that hardening kinetics and the age hardening response during artificial ageing can be enhanced for I.Q. at medium artificial ageing temperatures, but are reduced at high temperatures. I.Q. at high temperatures affects subsequent artificial ageing via the formation of precipitates, which contribute less to hardening but consume a significant amount of solute.

引用

页码：385 / 389

页数：5

共 32 条

[1] Effect of heat treatment on the microstructures and mechanical properties of Al-5.5Zn-2.5Mg alloy [J].

Acer, Emine ;

Cadirli, Emin ;

Erol, Harun ;

Kirindi, Talip ;

Gunduz, Mehmet .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 662 :144-156

[2]

Aye S. W. H., 2008, WORLD ACAD SCI ENG T, V2, P615

[3] GP-zones in Al-Zn-Mg alloys and their role in artificial aging [J].

Berg, LK ;

Gjonnes, J ;

Hansen, V ;

Li, XZ ;

Knutson-Wedel, M ;

Waterloo, G ;

Schryvers, D ;

Wallenberg, LR .

ACTA MATERIALIA, 2001, 49 (17) :3443-3451

[4] Characterization of the mechanical properties changes in an Al-Zn-Mg alloy after a two-step ageing treatment at 70° and 135 °C [J].

Chemingui, Mahmoud ;

Khitouni, Mohamed ;

Jozwiak, Karol ;

Mesmacque, Gerard ;

Kolsi, Abdelwaheb .

MATERIALS & DESIGN, 2010, 31 (06) :3134-3139

[5] Investigation of precipitation behavior and related hardening in AA 7055 aluminum alloy [J].

Chen, Junzhou ;

Zhen, Liang ;

Yang, Shoujie ;

Shao, Wenzhu ;

Dai, Shenglong .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 500 (1-2) :34-42

[6] The effect of interrupted aging on the yield strength and uniform elongation of precipitation-hardened Al alloys [J].

Chen, Y. ;

Weyland, M. ;

Hutchinson, C. R. .

ACTA MATERIALIA, 2013, 61 (15) :5877-5894

[7] Influence of predeformation on ageing in an Al-Zn-Mg alloy -: I.: Microstructure evolution and mechanical properties [J].

Deschamps, A ;

Livet, F ;

Bréchet, Y .

ACTA MATERIALIA, 1998, 47 (01) :281-292

[8] Recent developments in advanced aircraft aluminium alloys [J].

Dursun, Tolga ;

Soutis, Costas .

MATERIALS & DESIGN, 2014, 56 :862-871

[9] Precipitates, zones and transitions during aging of Al-Zn-Mg-Zr7000series alloy [J].

Hansen, V ;

Karlsen, OB ;

Langsrud, Y ;

Gjonnes, J .

MATERIALS SCIENCE AND TECHNOLOGY, 2004, 20 (02) :185-193

[10] LIGHTWEIGHT MATERIALS FOR AIRCRAFT APPLICATIONS [J].

IMMARIGEON, JP ;

HOLT, RT ;

KOUL, AK ;

ZHAO, L ;

WALLACE, W ;

BEDDOES, JC .

MATERIALS CHARACTERIZATION, 1995, 35 (01) :41-67

← 1 2 3 4 →