Abstract
Warm equal channel angular extrusion is used to consolidate a blend of amorphous Hf44.5Cu27Ni13.5Ti5Al10 and crystalline W powders. Dissolution of the W phase results in ∼60% aligned, elongated pores within an amorphous Hf-based matrix exhibiting ductility in compression, but at lower strengths than similar amorphous Zr-based foams due to incomplete bonding between Hf-based powders.
Original language | English (US) |
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Pages (from-to) | 124-127 |
Number of pages | 4 |
Journal | Materials Science and Engineering: A |
Volume | 533 |
DOIs | |
State | Published - Jan 30 2012 |
Funding
MEC was supported by a National Science Foundation Graduate Research Fellowship . The authors thank Mr. Larry Jones at Ames Laboratory (Department of Energy) for BMG powder preparation; they acknowledge useful discussions with, and use of the ECAE equipment of, Prof. K. Ted Hartwig (Texas A&M University, TAMU) as well as the experimental assistance of Mr. Robert Barber (TAMU) in operating the equipment.
Keywords
- Bulk amorphous alloy
- Cellular materials
- Equal channel angular processing
- Hafnium-based glassy alloy
- Porous materials
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering