Published March 2006
| Version v1
Journal article
Effect of ageing on the martensitic transformation of Ni-Fe-Ga alloys
- 1. Departament de Fisica, Universitat de les Illes Balears, Ctra. de Valldemossa, km 7.5, E07122 Palma de Mallorca, Illes Balears (Spain)
- 2. Departament de Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya, Avda. Diagonal, 647, E08028 Barcelona (Spain)
- 3. Institute of Metallurgy and Materials Science. Ul. Reymonta, 25, 30-059 Cracow (Poland)
Description
Three polycrystalline Ni53.5+x-Fe19.5-x-Ga27.0 alloys, with x = 0, 0.5, 1.5, have been aged at 520, 670 and 770 K. All the alloys show good long-term thermal stability after treatments at 520 K, whereas ageing at 670 and 770 K causes degradation of the martensitic transformation after ∼105-106 s, which is more intense in the alloy with lower Fe content. Transmission electron microscopy reveals the appearance of small and mostly elongated precipitates after long ageing periods at 670 and 770 K, associated with a drop of temperatures and heat of transformation measured by differential scanning calorimetry
Additional details
Identifiers
- DOI
- 10.1016/j.scriptamat.2005.11.062;
- PII
- S1359-6462(05)00813-4;
Publishing Information
- Journal Title
- Scripta Materialia
- Journal Volume
- 54
- Journal Issue
- 6
- Journal Page Range
- p. 1105-1109
- ISSN
- 1359-6462
- CODEN
- SCMAF7
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38062098
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AGING; CALORIMETRY; GALLIUM ALLOYS; HEAT; IRON ALLOYS; NICKEL ALLOYS; PHASE TRANSFORMATIONS; POLYCRYSTALS; PRECIPITATION; SHAPE MEMORY EFFECT; STABILITY; TEMPERATURE RANGE 0400-1000 K; TRANSMISSION ELECTRON MICROSCOPY
- Descriptors DEC
- ALLOYS; CRYSTALS; ELECTRON MICROSCOPY; ENERGY; MICROSCOPY; SEPARATION PROCESSES; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.