Room temperature instability of an Al-4%Cu super saturated solid solution in a nano-crystalline alloy produced by SPD

被引：7

作者：

Huang, Y. ^{[1
]}

Robson, J. D. ^{[1
]}

Prangnell, P. B. ^{[1
]}

机构：

[1] Univ Manchester, Manchester Mat Sci Ctr, Manchester M1 7HS, Lancs, England

来源：

JOURNAL OF MATERIALS SCIENCE | 2010年 / 45卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

GRAIN-BOUNDARY PRECIPITATION; PERCENT CU; AL-MG; MICROSTRUCTURE; EVOLUTION; GROWTH; SIZE; DEFORMATION;

D O I：

10.1007/s10853-010-4318-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The long-term stability of a severely deformed aluminium alloy has been investigated when copper in solution is used to inhibit recovery. A grain thickness of only 70 nm was obtained in an Al-4 wt% Cu alloy, after processing by equal channel angular extrusion to a strain of epsilon(eff) similar to 15, resulting in a lamellar nano-grain structure. However, the severely deformed solid solution was found to be unstable at room temperature and copious precipitation of theta occurred at new grain boundaries within the deformed state. The solute level fell to equilibrium within similar to 9 months. The precipitation kinetics were shown to occur at many orders of magnitude higher than can predicted by classical theory.

引用

页码：4851 / 4857

页数：7

共 50 条

[41] Effect of solution temperature and cooling rate on microstructure and mechanical properties of laser solid forming Ti-6Al-4V alloy
Zhang, Shuangyin
Lin, Xin
Chen, Jing
Huang, Weidong
CHINESE OPTICS LETTERS, 2009, 7 (06) : 498 - 501
[42] Effect of solution temperature and cooling rate on microstructure and mechanical properties of laser solid forming Ti-6Al-4V alloy
张霜银
林鑫
陈静
黄卫东
Chinese Optics Letters, 2009, 7 (06) : 498 - 501
[43] Study on the solid solution temperature of achieving ultra-high strength in wire-arc additive manufactured Al-Zn-Mg-Cu aluminum alloy
Hao, Shuai
Guo, Xinpeng
Cui, Jiayuan
Xu, Rongzheng
Guo, Xuming
MATERIALS CHARACTERIZATION, 2023, 201
[44] Room-temperature mechanically induced solid-state devitrifications of glassy Zr65Al7.5Ni10Cu12.5Pd5 alloy powders
El-Eskandarany, MS
Saida, J
Inoue, A
ACTA MATERIALIA, 2003, 51 (15) : 4519 - 4532
[45] Enhanced high-cycle fatigue strength of Al-12Si-4Cu-1.2Mn-T6 cast aluminum alloy at room temperature and 350 C
Wu, Yuna
Liao, Hengcheng
Tang, Yunyi
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 825
[46] Effects of hyper-high-temperature solid-solution treatment on microstructure evolution and nanoprecipitation of the Al-Ni-Cu-Fe-Zr-Sc alloy manufactured by selective laser melting
Chang, Kai-Chieh
Zhao, Jun-Ren
Hung, Fei-Yi
Hung, Fei-Yi (fyhung@mail.ncku.edu.tw), 1600, Elsevier Ltd (883):
[47] Effects of hyper-high-temperature solid-solution treatment on microstructure evolution and nanoprecipitation of the Al-Ni-Cu-Fe-Zr-Sc alloy manufactured by selective laser melting
Chang, Kai-Chieh
Zhao, Jun-Ren
Hung, Fei-Yi
JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 883
[48] A nano-crystalline room-temperature molecular magnet K0.45VII1.12VIII0.19[Cr(CN)6](SO4)0.13•4.34H2O -: Coexistence of long range ferrimagnetic ordering and spin glass behaviour
Gao, S
Bai, O
Yi, LR
ACTA CHIMICA SINICA, 2000, 58 (12) : 1666 - 1669
[49] Nano TiCl4/γ-Al2O3: An efficient heterogeneous solid acid catalyst for rapid and solvent-less synthesis of azo dyes based on 2-naphthol at room temperature
Bamoniri, Abdolhamid
Yaghmaeiyan, Nahid
Omidvar, Sayed Mohammad Hosein
RESULTS IN CHEMISTRY, 2023, 5
[50] Investigation of phase formation temperature of nano-sized solid solution of copper/cobalt molybdate and chromium-phosphate (M1xCr1-xMoxP1-xO4) [M1 = Co, Cu]
Ghorai, TK
Dhak, D
Azizan, A
Pramanik, P
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 121 (03): : 216 - 223

← 1 2 3 4 5 →