Effects of Gd doping on Ni54Mn25Ga21 high-temperature shape memory alloy

The influence of Gd content on the properties of Ni54Mn25Ga21−xGdx alloy was investigated. Proper Gd doping significantly enhanced the mechanical properties. Complete recovery was observed in Ni54Mn25Ga20.9Gd0.1 alloy after heating when the pre-strain is less than 10%, while further doping decreased...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2014-03, Vol.597, p.178-182
Main Authors: Zhang, Xin, Sui, Jiehe, Zheng, Xiaohang, Yang, Zheyi, Cai, Wei
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Doping
Exact sciences and technology
Formations
Heating
High-temperature shape memory effect
Martensitic transformations
Materials science
Mechanical properties
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Microstructure
Ni–Mn–Ga alloys
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Rare earth Gd doping
Second phase
Shape memory alloys
Structural materials
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Summary:The influence of Gd content on the properties of Ni54Mn25Ga21−xGdx alloy was investigated. Proper Gd doping significantly enhanced the mechanical properties. Complete recovery was observed in Ni54Mn25Ga20.9Gd0.1 alloy after heating when the pre-strain is less than 10%, while further doping decreased such properties due to the Gd-rich phase formation.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2013.12.081