Strengthening in a copper based nanocomposite

被引：3
作者：
Marques, MT [1 ]
Correia, JB
Matteazzi, P
机构：
[1] INETI, Dept Mat, P-1649038 Lisbon, Portugal
[2] Univ Udine, Dept Chem, I-33100 Udine, Italy
来源：
ADVANCED MATERIALS FORUM II | 2004年 / 455-456卷
关键词：
nanocomposite; hot extrusion; hardness; composites;
D O I：
10.4028/www.scientific.net/MSF.455-456.244
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A copper based alloy powder reinforced with alumina dispersion was prepared by mechanical alloying and was consolidated via hot extrusion. The as-milled, annealed and extruded powders were characterised by XRD, SEM and microhardness measurements. The high hardness values obtained for the nanocomposite were rationalised in terms of existing strengthening mechanisms.
引用
收藏
页码：244 / 248
页数：5
相关论文
共 8 条
[1]  
*AM SOC MET, 1984, MET HDB, V7, P293
[2]   Consolidation of dispersion strengthened nanostructured copper via hot extrusion [J].
Correia, JB ;
Marques, MT ;
Oliveira, MM ;
Matteazzi, P .
METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, ISMANAM-2000, 2001, 360-3 :241-246
[3]   Properties of copper reinforced by laser-generated Al2O3-nanoparticles [J].
Ferkel, H .
NANOSTRUCTURED MATERIALS, 1999, 11 (05) :595-602
[4]   ON THE ROOM-TEMPERATURE GRAIN-GROWTH IN NANOCRYSTALLINE COPPER [J].
GERTSMAN, VY ;
BIRRINGER, R .
SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (05) :577-581
[5]   SECONDARY RECRYSTALLIZATION EFFECTS IN NANOSTRUCTURED ELEMENTAL METALS [J].
GUNTHER, B ;
KUMPMANN, A ;
KUNZE, HD .
SCRIPTA METALLURGICA ET MATERIALIA, 1992, 27 (07) :833-838
[6]  
MORRIS DG, 1998, MECH BEHAV NANOSTRUC, P19
[7]   Grain stabilisation of copper with nanoscaled Al2O3-powder [J].
Naser, J ;
Ferkel, H ;
Riehemann, W .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 234 :470-473
[8]   X-RAY LINE BROADENING FROM FILED ALUMINIUM AND WOLFRAM [J].
WILLIAMSON, GK ;
HALL, WH .
ACTA METALLURGICA, 1953, 1 (01) :22-31
1