Improved mechanical behavior of Cu-Ti-based bulk metallic glass by in situ formation of nanoscale precipitates

被引：161

作者：

Calin, M ^{[1
]}

Eckert, J ^{[1
]}

Schultz, L ^{[1
]}

机构：

[1] IFW Dresden, Inst Metall Werkstoffe, D-01171 Dresden, Germany

来源：

SCRIPTA MATERIALIA | 2003年 / 48卷 / 06期

关键词：

casting; bulk metallic glasses; nanocomposites; mechanical properties;

D O I：

10.1016/S1359-6462(02)00560-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical properties of Cu47Ti34Zr11Ni8, Cu47Ti33Zr11Ni8Fe1, and Cu47Ti33Zr11Ni8Si1 bulk metallic glasses prepared by copper mold casting are investigated. Room temperature compression tests reveal fracture strengths above 2000 MPa, Young's moduli around 100 GPa and elastic strains slightly exceeding 2.0%. Only Cu47Ti33Zr11Ni8Si1 exhibits distinct plastic strain due to a unique composite microstructure with in situ formed nanoscale precipitates in the glassy matrix. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：653 / 658

页数：6

共 30 条

[1]

Ashby MF, 1980, Engineering materials

[2] Mechanical behavior of a bulk Cu-Ti-Zr-Ni-Si-Sn metallic glass forming nano-crystal aggregate bands during deformation in the supercooled liquid region [J].

Bae, DH ;

Lim, HK ;

Kim, SH ;

Kim, DH ;

Kim, WT .

ACTA MATERIALIA, 2002, 50 (07) :1749-1759

[3] QUASI-STATIC CONSTITUTIVE BEHAVIOR OF ZR41.25TI13.75NI10CU12.5BE22.5 BULK AMORPHOUS-ALLOYS [J].

BRUCK, HA ;

CHRISTMAN, T ;

ROSAKIS, AJ ;

JOHNSON, WL .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (04) :429-434

[4] Synthesis and characterization of particulate reinforced Zr57Nb5Al10Cu15.4Ni12.6 bulk metallic glass composites [J].

Choi-Yim, H ;

Busch, R ;

Köster, U ;

Johnson, WL .

ACTA MATERIALIA, 1999, 47 (08) :2455-2462

[5] Melt infiltration casting of bulk metallic-glass matrix composites [J].

Dandliker, RB ;

Conner, RD ;

Johnson, WL .

JOURNAL OF MATERIALS RESEARCH, 1998, 13 (10) :2896-2901

[6] Thermal stability of mechanically alloyed Zr-Cu-Al-Ni glass composites containing ZrC particles as a second phase [J].

Deledda, S ;

Eckert, J ;

Schultz, L .

SCRIPTA MATERIALIA, 2002, 46 (01) :31-35

[7] Static mechanical characterization of a bulk amorphous and nanocrystalline Zr40Ti14Ni11Cu10Be25 alloy [J].

Doglione, R ;

Spriano, S ;

Battezzati, L .

NANOSTRUCTURED MATERIALS, 1997, 8 (04) :447-456

[8] Oxide dispersion strengthened mechanically alloyed amorphous Zr-Al-Cu-Ni composites [J].

Eckert, J ;

Seidel, M ;

Kubler, A ;

Klement, U ;

Schultz, L .

SCRIPTA MATERIALIA, 1998, 38 (04) :595-602

[9] Metallic glass matrix composite with precipitated ductile reinforcement [J].

Fan, C ;

Ott, RT ;

Hufnagel, TC .

APPLIED PHYSICS LETTERS, 2002, 81 (06) :1020-1022

[10] Deformation behavior of Zr-based bulk nanocrystalline amorphous alloys [J].

Fan, C ;

Li, CF ;

Inoue, A ;

Haas, V .

PHYSICAL REVIEW B, 2000, 61 (06) :R3761-R3763

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