The mechanical properties of Zr41.2Ti13.8Cu 12.5Ni10Be22.5 (Vitreloy 1, (Vit. 1)) have been examined after cold rolling. For the cold rolled Vit. 1 up to 18% in thickness reduction, both ultimate compressive strength and ductility exhibited up to 1.95 GPa with 20% of elongation. It appears that the increase of strength and elongation was due to the high density of shear bands together with in situ nano-crystallization by cold rolling. The in situ nano crystallization was confirmed by Differential scanning calorimetry (DSC) and high resolution transmission electron microscope (HR-TEM). The enhancement of mechanical properties was discussed in terms of in situ nano-crystallization and structural stability of Vit. 1.
Bibliographical noteFunding Information:
This work was supported by Creative Research Initiatives of the Korean Ministry of Science and Technology. One of the author (W.T. Kim) thanks for the partial financial support from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, ‘Republic of Korea’. Also, constructive comments of Prof. Perepezko (Univ. of Wisconsin – Madison) are gratefully acknowledged.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry