NIMTE OpenIR  > 2018专题
Elastocaloric Effect Associated with Different Types of Martensitic Transformations: Typical First-Order and Weak First-Order Ones
Xiao, Fei; Fukuda, Takashi; Jin, Xuejun; Liu, Jian; Kakeshita, Tomoyuki
2018
Source PublicationPHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume255Issue:2
AbstractElastocaloric effects of a Ni50Fe19Ga27Co4 alloy exhibiting a typical first-order martensitic transformation (MT) and an Fe-31.2Pd (at.%) alloy exhibiting a weak first-order MT, respectively, have been compared using their single crystals. A flat region appears in the temperature dependence of elastocaloric effect in the Ni50Fe19Ga27Co4 alloy, while such region is missing in the Fe-31.2Pd alloy. The elastocaloric effect of the Ni50Fe19Ga27Co4 alloy originates essentially from the latent heat released by the stress-induced MT, while that in the Fe-31.2Pd alloy originates essentially from the entropy change caused by elastic deformation of the parent and martensite phases. Although the Young's modulus in the [001] direction at M-s is nearly the same for the two alloys (E approximate to 2GPa), its slope dE/dT is largely different between the two alloys. It is approximately 0.003GPaK(-1) for the Ni50Fe19Ga27Co4 alloy and 0.2GPaK(-1) for Fe-31.2Pd alloy.
KeywordShape-memory Alloy Fe-pd Alloys Stress Fcc Superelasticity Behavior
Subject AreaChemistry ; Crystallography ; Materials Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16834
Collection2018专题
Recommended Citation
GB/T 7714
Xiao, Fei,Fukuda, Takashi,Jin, Xuejun,et al. Elastocaloric Effect Associated with Different Types of Martensitic Transformations: Typical First-Order and Weak First-Order Ones[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS,2018,255(2).
APA Xiao, Fei,Fukuda, Takashi,Jin, Xuejun,Liu, Jian,&Kakeshita, Tomoyuki.(2018).Elastocaloric Effect Associated with Different Types of Martensitic Transformations: Typical First-Order and Weak First-Order Ones.PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS,255(2).
MLA Xiao, Fei,et al."Elastocaloric Effect Associated with Different Types of Martensitic Transformations: Typical First-Order and Weak First-Order Ones".PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 255.2(2018).
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