Effect of Ni-Al atomic ratio on glass formation in La-Al-Cu-Ni bulk metallic glasses
- 1. Department of Physics, Fujian Normal University, Fuzhou 350007 (China)
- 2. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 (China)
- 3. National Laboratory of Solid State Microstructure, and Department of Physics, Nanjing University, Nanjing 210093 (China)
Description
Glass forming ability (GFA) and thermal properties were investigated for La62Al14(Cu1-xNix)24 (x = 0.2, 0.4, 0.6 and 0.8) bulk metallic glasses (BMGs). The experimental results show that in the La-based La-Al-(Cu-Ni) pseudo-ternary system, optimum glass formation actually occurs at the Ni:Al ratio of 1:1. It has been found that the GFA is much better in the range of unstable intermetallic compound (AlNi) than that of adjacent stable intermetallic compound (AlNi3). The asymmetry of negative heat of mixing between the atomic pairs of La-Cu and La-Ni, Al-Cu and Al-Ni is also considered as another influencing factor of GFA. It might be an effective way to develop and design BMGs by adjusting the Ni-Al atomic ratio in Al-Ni-contained alloy systems.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jallcom.2008.11.117Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2008.11.117;
- PII
- S0925-8388(08)02149-X;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 478
- Journal Issue
- 1-2
- Journal Page Range
- p. 193-196
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41044851
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOY SYSTEMS; ALUMINIUM ALLOYS; ASYMMETRY; COPPER ALLOYS; GLASS; INTERMETALLIC COMPOUNDS; LANTHANUM ALLOYS; METALLIC GLASSES; MIXING HEAT; NICKEL ALLOYS
- Descriptors DEC
- ALLOYS; ENTHALPY; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.