Published February 2011 | Version v1
Journal article Metadata-only

Martensitic transformation in Cu-doped NiMnGa magnetic shape memory alloys

Creators

  • 1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191 (China)

Description

This paper studies the martensitic transformation in the Cu-doped NiMnGa alloys. The orthorhombic martensite transforms to L21 cubic austenite by Cu substituting for Ni in the Ni50−xCuxMn31Ga19 (x=2−10) alloys, the martensitic transformation temperature decreases significantly with the rate of 40 K per Cu atom addition. The variation of the Fermi sphere radius (kF) is applied to evaluate the change of the martensitic transformation temperature. The increase of kF leads to the increase of the martensitic transformation temperature. (cross-disciplinary physics and related areas of science and technology)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/20/2/028104

Additional details

Identifiers

DOI
10.1088/1674-1056/20/2/028104;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
20
Journal Issue
2
Journal Page Range
[5 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45013171
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ATOMS; AUSTENITE; COPPER; CUBIC LATTICES; DOPED MATERIALS; FERMI LEVEL; GALLIUM; INTERMETALLIC COMPOUNDS; MANGANESE; MARTENSITE; NICKEL; ORTHORHOMBIC LATTICES; PHASE TRANSFORMATIONS; SHAPE MEMORY EFFECT; VARIATIONS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ELEMENTS; ENERGY LEVELS; IRON ALLOYS; MATERIALS; METALS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS