Published June 14, 2004 | Version v1
Journal article Metadata-only

Hard metallic glass of tungsten-based alloy

Creators

  • 1. National Institute for Materials Science, Sengen, Tsukuba 305-0047 (Japan)
  • 2. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sengen, Tsukuba 305-8505 (Japan)
  • 3. Department of Material Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510 (Japan)

Description

A tungsten-based ductile metallic glass with the composition W46Ru37B17 was produced by a single-roller melt-spinning procedure. The differential scanning calorimetry measurement showed a two-step crystallization with the first crystallization temperature as high as 1174 K. Young's modulus of the glass at room temperature was estimated to be 309±20 GPa by a nanoindentation test and the Vickers hardness at room temperature was 16.8±1 GPa. These values are higher than those of any metallic glasses so far reported. High-temperature Vickers hardness test indicated that the hardness value is higher than 10 GPa up to 900 K

Additional details

Identifiers

DOI
10.1063/1.1763639;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
84
Journal Issue
24
Journal Page Range
p. 4911-4913
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36047748
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BORON ALLOYS; CALORIMETRY; CRYSTALLIZATION; HARDNESS; METALLIC GLASSES; PRESSURE RANGE GIGA PA; RUTHENIUM ALLOYS; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TERNARY ALLOY SYSTEMS; TUNGSTEN BASE ALLOYS; VICKERS HARDNESS; YOUNG MODULUS
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; MECHANICAL PROPERTIES; PHASE TRANSFORMATIONS; PLATINUM METAL ALLOYS; PRESSURE RANGE; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS; TUNGSTEN ALLOYS

Optional Information

Notes
(c) 2004 American Institute of Physics.