Partial dissolution of strengthening particles induced by equal channel angular pressing in an Al-Li-Cu alloy

被引：17
作者：
Cabibbo, Marcello [1 ]
机构：
[1] Univ Politecn Marche, DIISM, I-60131 Ancona, Italy
来源：
MATERIALS CHARACTERIZATION | 2012年 / 68卷
关键词：
Al-Li alloy; Precipitation hardening; Severe plastic deformation; Equal channel angular pressing; TEM; SEVERE PLASTIC-DEFORMATION; MECHANICAL-PROPERTIES; ZR ALLOY; PRECIPITATION; REFINEMENT;
D O I：
10.1016/j.matchar.2012.03.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An Al-Li-Cu (AA2091) alloy was subjected to equal channel angular pressing (ECAP) at 210 degrees C following route B-C to a maximum strain of epsilon=8.64. A considerable particle age hardening anticipation with respect to an isochronal aging treatment was documented. At epsilon=6.48, the alloy reached a peak hardness level, while at epsilon=8.64, the alloy overaged and partial dissolution of the two most abundant hardening particles, T-1 plates and S' laths, was induced by ECAP/B-C. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码：7 / 13
页数：7
相关论文
共 30 条
[1]   Effect of heat treatment on the tensile properties of Al-Li alloys [J].
Bairwa, ML ;
Date, PP .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2004, 153 :603-607
[2]   Influence of severe plastic deformations on secondary phase precipitation in a 6082 Al-Mg-Si alloy [J].
Cabibbo, M ;
Evangelista, E ;
Vedani, M .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2005, 36A (05) :1353-1364
[3]   A TEM Kikuchi pattern study of ECAP AA1200 via routes A, C, BC [J].
Cabibbo, M. .
MATERIALS CHARACTERIZATION, 2010, 61 (06) :613-625
[4]   THE EFFECT OF PLASTIC-DEFORMATION ON AL2CULI (T1) PRECIPITATION [J].
CASSADA, WA ;
SHIFLET, GJ ;
STARKE, EA .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (02) :299-306
[5]   MECHANISM OF AL2CULI (T1) NUCLEATION AND GROWTH [J].
CASSADA, WA ;
SHIFLET, GJ ;
STARKE, EA .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (02) :287-297
[6]   MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF MECHANICALLY ALLOYED, INGOT METALLURGY AND POWDER-METALLURGY AL-LI-CU-MG ALLOYS [J].
CHEN, RT ;
STARKE, EA .
MATERIALS SCIENCE AND ENGINEERING, 1984, 67 (02) :229-245
[7]   Low quench sensitivity of superplastic 8090 Al-Li thin sheets [J].
Chen, TR ;
Peng, GJ ;
Huang, JC .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (10) :2923-2933
[8]   Age hardening and the potential for superplasticity in a fine-grained Al-Mg-Li-Zr alloy [J].
Furukawa, M ;
Berbon, PB ;
Horita, Z ;
Nemoto, M ;
Tsenev, NK ;
Valiev, RZ ;
Langdon, TG .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (01) :169-177
[9]  
Gable B.M., 2002, J LIGHT METALS, V2, P65
[10]  
Gable B.M., 2001, J. Light Met, V1, P1, DOI [10.1016/S1471-5317(00)00002-X, DOI 10.1016/S1471-5317(00)00002-X]
123