Abstract
Controlling the cold-rolled structure of the shear-band network in Zr50Cu30Ni10Al10 bulk amorphous alloys can enhance the tensile plastic deformability at room temperature Cold-rolling is useful for controlling the shear band network structure in bulk amorphous alloys. The cold-rolled structure in a bulk amorphous alloy is classified into two regions, the deformed shear-band region and non-deformed block region. Since the pre-deformed shear-band region moves more easily than the non-deformed region, the pre-deformed shear-band network movement is able to release applied tensile strain. Consequently, plastic tensile strain can be obtained in a cold-rolled bulk amorphous alloy by systematical movement of the shear-band network. In this study, we obtained a maximum tensile plastic strain of about 0.25% in 10% cold-rolled Zr50Cu30Ni10Al10 bulk amorphous alloy. The tensile fracture surface was composed of many step marks leading to the pre-introduced shear band movement.
Original language | English |
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Pages (from-to) | 3199-3205 |
Number of pages | 7 |
Journal | Materials Transactions |
Volume | 43 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2002 Dec |
Externally published | Yes |
Keywords
- Cold-rolling
- Crystalline inclusions
- Tensile plastic elongation
- ZrCuNiAl bulk amorphous alloy
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering