Development of W-Reinforced Zr-Based Metallic Glass
Authors:
- Takeshi TerajimaTTTakeshi Terajima
- Kazuhiro NakataKNKazuhiro Nakata
- Hisamichi KimuraHKHisamichi Kimura
- Akihisa InoueAIAkihisa Inoue
- 1 January 2010
- journal article
- Published by Japan Institute of Metals in Journal of the Japan Institute of Metals and Materials
- Vol. 74 (2) , 85-88
Abstract
In order to improve the mechanical properties of Zr55Al10Ni5Cu30 metallic glass, tungsten-reinforced Zr55Al10Ni5Cu30 was developed. Tungsten particles with a diameter φ=100 μm were uniformly distributed into the matrix, exhibiting good wettability with the Zr55Al10Ni5Cu30 metallic glass matrix. Due to the extremely high melting temperature of tungsten, the tungsten particles coexisted with amorphous Zr55Al10Ni5Cu30, although a reaction layer of ZrW2 and a crystallized matrix formed to a certain extent depending on the sample. Nevertheless, the total amount of crystallization in both the matrix and the reaction phases remained small. As the volume fraction of W was increased from 0 to 8.7%, the compressive plastic strain increased from 0 to 1.3%, and the compressive fracture strength increased from 1480 MPa to 1870 MPa. The coefficient of thermal expansion of monolithic Zr55Al10Ni5Cu30 decreased from 10.4×10-6/K to 8.2×10-6/K in the case of the composite containing 30% W powder.Keywords
This publication has 12 references indexed in Scilit:
- Synthesis and characterization of particulate reinforced Mg-based bulk metallic glass compositesMaterials Letters, 2007
- Enhanced plasticity in Mg-based bulk metallic glass composite reinforced with ductile Nb particlesApplied Physics Letters, 2006
- Heterogeneity of a Cu47.5Zr47.5Al5 bulk metallic glassApplied Physics Letters, 2006
- Nanoscale multistep shear band formation by deformation-induced nanocrystallization in Zr-Al-Ni-Pd bulk metallic glassApplied Physics Letters, 2005
- “Work-Hardenable” Ductile Bulk Metallic GlassPhysical Review Letters, 2005
- Synthesis and mechanical properties of Cu-based bulk metallic glass composites containing in-situ TiC particlesScripta Materialia, 2005
- Improved mechanical behavior of Cu–Ti-based bulk metallic glass by in situ formation of nanoscale precipitatesScripta Materialia, 2003
- Carbon-addition-induced bulk ZrTiCuNiBe amorphous matrix composite containing ZrC particlesMaterials Letters, 2000
- Synthesis and Mechanical Properties of Zr55Al10Ni5Cu30 Bulk Glass Composites Containing ZrC Particles Formed by the In-Situ ReactionMaterials Transactions, JIM, 2000
- Synthesis and Mechanical Properties of Bulk Amorphous Zr–Al–Ni–Cu Alloys Containing ZrC ParticlesMaterials Transactions, JIM, 1997