Access the full text.
Sign up today, get DeepDyve free for 14 days.
G. Waterloo, V. Hansen, J. Gjønnes, S. Skjervold (2001)
Effect of predeformation and preaging at room temperature in Al–Zn–Mg–(Cu,Zr) alloysMaterials Science and Engineering A-structural Materials Properties Microstructure and Processing, 303
D. Lloyd, M. Chaturvedi (1982)
A calorimetric study of aluminium alloy AA-7075Journal of Materials Science, 17
(2000)
Microstructural evolution and age hardening in aluminium alloys: atom probe fieldion microscopy and transmission electron microscopy studies
S. Singh, D. Goel (1990)
Influence of thermomechanical ageing on tensile properties of 2014 aluminium alloyJournal of Materials Science, 25
Shuncai Wang, M. Starink, N. Gao (2006)
Precipitation hardening in Al¿Cu¿Mg alloys revisitedScripta Materialia, 54
M. Starink, N. Gao, J. Yan (2004)
The origins of room temperature hardening of Al–Cu–Mg alloysMaterials Science and Engineering A-structural Materials Properties Microstructure and Processing, 387
F. Ostermann (1971)
Improved fatigue resistance of Al-Zn-Mg-Cu (7075) alloys through thermomechanical processingMetallurgical Transactions, 2
H. Rack (1977)
The influence of prior strain upon precipitation in a high-purity 6061 aluminum alloy☆Materials Science and Engineering, 29
S. Colombo, P. Battaini, G. Airoldi (2007)
Precipitation kinetics in Ag–7.5 wt.% Cu alloy studied by isothermal DSC and electrical-resistance measurementsJournal of Alloys and Compounds, 437
M. Starink, Shuncai Wang (2009)
The thermodynamics of and strengthening due to co-clusters: General theory and application to the case of Al–Cu–Mg alloysActa Materialia, 57
Ai-lin Ning, Zhiyi Liu, Su-min Zeng (2006)
Effect of large cold deformation after solution treatment on precipitation characteristic and deformation strengthening of 2024 and 7A04 aluminum alloysTransactions of Nonferrous Metals Society of China, 16
H. Shih, N. Ho, J. Huang (1996)
Precipitation behaviors in Al-Cu-Mg and 2024 aluminum alloysMetallurgical and Materials Transactions A, 27
F. Vianaa, A. Pintob, H. Santosa, A. Lopesc (1999)
Retrogression and re-ageing of 7075 aluminium alloy : microstructural characterization
Z.M. El-Baradie, M. El-Sayed (1996)
Effect of thermomechanical treatments on the properties of 7075 Al alloyJ. Mater. Process. Technol., 62
Joongkeun Park, A. Ardell (1989)
Correlation between microstructure and calorimetric behavior of aluminum alloy 7075 and AlZnMg alloys in various tempersMaterials Science and Engineering A-structural Materials Properties Microstructure and Processing, 114
T. Parel, Shuncai Wang, M. Starink (2010)
Hardening of an Al–Cu–Mg alloy containing Types I and II S phase precipitatesMaterials & Design, 31
S. Ringer, T. Sakurai, I. Polmear (1997)
Origins of hardening in aged AlGuMg(Ag) alloysActa Materialia, 45
A. Charaï, T. Walther, C. Alfonso, A. Zahra, C. Zahra (2000)
Coexistence of clusters, GPB zones, S″-, S′- and S-phases in an Al–0.9% Cu–1.4% Mg alloyActa Materialia, 48
J. Papazian (1982)
Calorimetric Studies of Precipitation and Dissolution Kinetics in Aluminum Alloys 2219 and 7075Metallurgical Transactions A, 13
D. Richard, P. Adler (1977)
Calorimetric studies of 7000 series aluminum alloys: I. Matrix precipitate characterization of 7075Metallurgical Transactions A, 8
F. Cuisiat, P. Duval, R. Graf (1984)
Etude des premiers stades de decomposition d'un alliage AlCuMgScripta Metallurgica, 18
J. Papazian (1981)
The effects of warm working on aluminum alloy 7075-T651Materials Science and Engineering, 51
J. Papazian (1986)
Differential scanning calorimetry evaluation of retrogressed and re-aged microstructures in aluminum alloy 7075Materials Science and Engineering, 79
P. Rao, R. Jayaganthan (2012)
Effects of warm rolling and ageing after cryogenic rolling on mechanical properties and microstructure of Al 6061 alloyMaterials & Design, 39
Shuncai Wang, M. Starink (2007)
Two types of S phase precipitates in Al–Cu–Mg alloysActa Materialia, 55
I. Khan, M. Starink, J. Yan (2008)
A Model for Precipitation Kinetics and Strengthening in Al-Cu-Mg AlloysMaterials Science and Engineering A-structural Materials Properties Microstructure and Processing, 472
Y. Nagai, M. Murayama, Z. Tang, T. Nonaka, K. Hono, M. Hasegawa (2001)
ROLE OF VACANCY-SOLUTE COMPLEX IN THE INITIAL RAPID AGE HARDENING IN AN Al-Cu-Mg ALLOYActa Materialia, 49
L. Kovarik, S. Court, H. Fraser, M. Mills (2008)
GPB zones and composite GPB/GPBII zones in Al–Cu–Mg alloysActa Materialia, 56
In the present work, the precipitation hardening of 2024 and 7075 aluminum alloys is investigated as a function of cold rolling degree, ageing time and temperature using Vickers microhardness measurements and differential scanning calorimetry (DSC). It is found that a variation in such parameters can improve the hardness and plays an important role in the precipitation hardening process. At specific ageing temperature, the large cold rolled 7075 alloy exhibits two peaks of hardness. Moreover, for both alloys, the increment of hardness during ageing decreases with increasing the cold rolling degree. While in some cases microhardness measurements give impression that the precipitation reaction is slowed down by deformation, DSC analysis indicates that the precipitation is much accelerated since only a slight deformation decreases strongly the temperatures of reactions. However, the degree of cold rolling does not play a crucial role.
Mechanics of Time-Dependent Materials – Springer Journals
Published: Aug 1, 2013
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.