INFLUENCE OF SEVERE PLASTIC-DEFORMATION ON AGING EFFECT OF AL-ZN-MG-CU-ZR ALLOY

Authors
STOLYAROV VV LATYSH VV SHUNDALOV VA SALIMONENKO DA ISLAMGALIEV RK VALIEV RZ
Citation
Vv. Stolyarov et al., INFLUENCE OF SEVERE PLASTIC-DEFORMATION ON AGING EFFECT OF AL-ZN-MG-CU-ZR ALLOY, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 234, 1997, pp. 339-342
Citations number
7
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
234
Year of publication
1997
Pages
339 - 342
Database
ISI
SICI code
0921-5093(1997)234:<339:IOSPOA>2.0.ZU;2-9
Abstract
The influence of severe plastic deformation (SPD) on aging effects in commercial strongly alloyed Al-Zn-Mg-Cu-Zr alloy was studied. The effe ct of natural and artificial aging was studied after application of th ree different processing schemes: (1) usual quenching; (2) SPD in the starting state; (3) SPD at once after quenching. It was shown that SPD process leads to formation of nanocrystalline structure (d(z) = 70 nm ) providing a high strength state. The attained value of microhardness equal to 2800 MPa is a record and exceeds a correspondent value obtai ned by traditional methods by a factor of 1.5-2.0. (C) 1997 Elsevier S cience S.A.