DataVXPhilosophical MagazinePaper
journal article·2021-04-18

The investigation of magnetic phase transitions and magnetocaloric properties in high-pressure annealed MnNiFeGe alloy

Chuancong Wang, Qiubo Hu, Lei Zhang, Mingzhen Wei

Philosophical Magazine· Volume 101· Issue 8
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Source abstract

Abstract

The MnNiFeGe alloy is prepared by high-pressure annealing method. It is found that the martensitic transformation temperature after high-pressure annealing of this alloy decreases with the increasing thermal hysteresis. Besides, another magnetic phase transition above the martensitic transformation is observed, which is due to the existence of a large amount of retained austenite induced by high-pressure annealing. As a result, this alloy shows two positive magnetic entropy change peaks, corresponding to the ferromagnetic phase transition of the austenite and the magnetic martensitic transformation, respectively. The magnetic phase transitions, the variable-temperature crystal-structure evolution, and the magnetocaloric properties of this alloy are investigated in detail.
Source: openalex_inverted_index · Quality: baseline

Research context

Metals & alloysMaterials processing

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Physics and Electronic Engineering, Linyi University, Linyi, People’s Republic of China

Department of Mathematics and Science, Luoyang Institute of Science and Teleology, Luoyang, People’s Republic of China

High Magnetic Field Laboratory, Chinese Academy of Sciences (CAS), Hefei City, People’s Republic of China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · Funding Scheme for Key Scientific Research Projects in Universities of Henan Province

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