High pressure torsion of amorphous Cu60Zr30Ti10 alloy

被引：44

作者：

Hobor, Sandor ^{[1
]}

Revesz, Adam ^{[1
]}

Szabo, Peter J. ^{[2
]}

Zhilyaev, Alex P. ^{[3
,4
]}

Kis, Viktoria Kovacs ^{[5
]}

Labar, Janos L. ^{[1
,5
]}

Kovacs, Zsolt ^{[1
,6
]}

机构：

[1] Eotvos Lorand Univ, Dept Mat Phys, H-1518 Budapest, Hungary

[2] Univ Technol & Econ, Dept Mat Sci & Engn, H-1111 Budapest, Hungary

[3] Ctr Nacl Invest Met, Madrid 28040, Spain

[4] Russian Acad Sci, Inst Met Superplast Problems, Ufa 450001, Russia

[5] Hungarian Acad Sci, Res Inst Tech Phys & Mat Sci, H-1525 Budapest, Hungary

[6] Univ Coll Dublin, Sch Elect Elect & Mech Engn, Dublin 4, Ireland

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 03期

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1063/1.2964115

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High pressure torsion was applied to produce a disk-shaped specimen of Cu60Zr30Ti10 composition. The dependence of the morphology, microstructure, and thermal behavior on the applied shear strain was monitored by scanning and transmission electron microscopies, synchrotron x-ray diffraction, and calorimetry. The disk consists of a gradient microstructure ranging from large homogeneous blocks (about 20 mu m) to finely dispersed nanocrystals (about 20 nm) of two stable hexagonal phases and continuously decreasing amorphous content with increasing strain. The evolution of such microstructure was interpreted by using a model based on heat conduction generated by the extensive shear deformation. (C) 2008 American Institute of Physics.

引用

页数：8

共 32 条

[1] Synthesis routes for controlling the microstructure in nanostructured Al88Y7Fe5 alloys [J].

Boucharat, N. ;

Hebert, R. ;

Roesner, H. ;

Valiev, R. Z. ;

Wilde, G. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 434 :252-254

[2] Mechanically driven phase separation and corresponding microhardness change in Cu60Zr20Ti20 bulk metallic glass -: art. no. 081913 [J].

Cao, QP ;

Li, JF ;

Zhou, YH ;

Jiang, JZ .

APPLIED PHYSICS LETTERS, 2005, 86 (08) :1-3

[3] DEFORMATION-INDUCED NANOCRYSTAL FORMATION IN SHEAR BANDS OF AMORPHOUS-ALLOYS [J].

CHEN, H ;

HE, Y ;

SHIFLET, GJ ;

POON, SJ .

NATURE, 1994, 367 (6463) :541-543

[4] Thermal characterization of Cu60ZrxTi40-x metallic glasses (x=15, 20, 22, 25, 30) [J].

Concustell, A ;

Zielinska, M ;

Révész, A ;

Varga, LK ;

Suriñach, S ;

Baró, MD .

INTERMETALLICS, 2004, 12 (10-11) :1063-1067

[5] Microstructural evolution during decomposition and crystallization of the CU60Zr20Ti20 amorphous alloy [J].

Concustell, A ;

Révész, A ;

Suriñach, S ;

Varga, LK ;

Heunen, G ;

Baró, MD .

JOURNAL OF MATERIALS RESEARCH, 2004, 19 (02) :505-512

[6] Formation and chemistry of nanocrystalline phases formed during deformation in aluminum-rich metallic glasses [J].

Csontos, AA ;

Shiflet, GJ .

NANOSTRUCTURED MATERIALS, 1997, 9 (1-8) :281-289

[7] Analysis of recent measurements of the viscosity of glasses [J].

Fulcher, GS .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1925, 8 (06) :339-355

[8] CALIBRATION AND CORRECTION OF SPATIAL DISTORTIONS IN 2D DETECTOR SYSTEMS [J].

HAMMERSLEY, AP ;

SVENSSON, SO ;

THOMPSON, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 346 (1-2) :312-321

[9] BALL MILLING-INDUCED NANOCRYSTAL FORMATION IN ALUMINUM-BASED METALLIC GLASSES [J].

HE, Y ;

SHIFLET, GJ ;

POON, SJ .

ACTA METALLURGICA ET MATERIALIA, 1995, 43 (01) :83-91

[10] Dislocation formation during deformation-induced synthesis of nanocrystals in amorphous and partially crystalline amorphous Al88Y7Fe5 alloy [J].

Hebert, RJ ;

Perepezko, JH ;

Rösner, H ;

Wilde, G .

SCRIPTA MATERIALIA, 2006, 54 (01) :25-29

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