The development of new ferromagnetic shape memory alloys in Ni-Mn-Ga system

Journal Article · Sun Oct 15 00:00:00 EDT 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00370-B· OSTI ID:237802

Chernenko, V A; Kokorin, V V; Vitenko, I N ^[1]; Cesari, E ^[2]

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1. Inst. of Metal Physics, Kiev (Ukraine)
2. Univ. de les Illes Balears, Palma de Mallorca (Spain). Dept. de Fisica

The Ferromagnetic Heusler alloy Ni{sub 2}MnGa is known to undergo a structural phase transformation of martensitic type. Thermoelastic nature, shape memory effect (SME) and superelasticity were sound to be intrinsic to this transformation. In this work the authors present the results of the investigation of the following problems: how M{sub s}, the thermal hysteresis, Curie temperature, transformation heat are affected by the composition variation in the Ni-Mn-Ga alloy system in a concentration interval for each component of about 10 at. %. This work was performed to make sure that the new family of Ni-Mn-Ga based shape memory alloys (SMA) with a wide variety of structural and magnetic properties is actually elaborated.

• OSTI ID: 237802
• Journal Information: Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 8 Vol. 33; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALORIMETRY
CASTING
CHEMICAL COMPOSITION
COMPRESSION STRENGTH
CURIE POINT
ELECTRON MICROSCOPY
FLEXURAL STRENGTH
GALLIUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MANGANESE ALLOYS
MARTENSITE
MECHANICAL PROPERTIES
MICROSTRUCTURE
MONOCRYSTALS
NICKEL ALLOYS
PHASE TRANSFORMATIONS
X-RAY DIFFRACTION