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Mostrando ítems 1-7 de 7
Artículo
Thermal Arrest Analysis of the Reverse Martensitic Transformation in a Ni55Fe19Ga26 Heusler Alloy Obtained by Melt-spinning
(Springer Nature, 2023)
Ni55Fe19Ga26 ribbons obtained by melt-spinning technique exhibit a martensitic transformation from L21 cubic austenite phase to 14 M martensite phase above room temperature. We have taken advantage of the existence of ...
Artículo
On the order of magnetic transition in MnCo1−xFexGe (x = 0.20, 0.06 and 0.03) mechanical alloys
(Elsevier, 2023)
Mechanically amorphized MnCo1−xFexGe alloys (x = 0.20, 0.06 and 0.03) were used as precursors to obtain hexagonal austenite single phase samples. Combining thermomagnetic and magnetocaloric analysis and in situ X-ray ...
Artículo
Reversibility and Thermal Dependence of the Martensitic Transformation in a Melt-spun Ni55Fe17Ga26Co2 Heusler Alloy
(Elsevier, 2023)
An almost single phase 14 M modulated martensite is obtained in melt spun ribbon of Ni55Fe17Ga26Co2 Heusler alloy. The effect of thermal treatments on the stability of the reverse martensitic transformation from 14 M ...
Artículo
Mechanical Alloying as a Way to Produce Metastable Single-Phase High-Entropy Alloys beyond the Stability Criteria
(MDPI, 2023-12)
Various stability criteria developed for high-entropy alloys are applied to compositions produced by mechanical alloying. While they agree with the annealed samples, these criteria fail to describe the as-milled metastable ...
Artículo
Obtaining magnetocaloric MnCo(Fe)Ge intermetallics from low temperature treatment of mechanically alloyed precursors
(Elsevier, 2020)
Production of the intermetallic MnCo0.8Fe0.2Ge phase, interesting as magnetocaloric material, is obtained by using an almost fully amorphous mechanically alloyed precursor. Thermal treatment to develop the intermetallic ...
Artículo
Mechanical Amorphization and Recrystallization of Mn-Co(Fe)-Ge(Si) Compositions
(MDPI, 2019-05)
Mechanical alloying using a planetary ball mill allowed us to obtain two homogeneous systems formed by units with nanometer size and MnCo0.8Fe0.2Ge1−xSix stoichiometry (x = 0 and 0.5). The phase evolution of the systems ...
Artículo
Distribution of transition temperatures in magnetic transformations: Sources, effects and procedures to extract information from experimental data
(Multidisciplinary Digital Publishing Institute (MDPI), 2020)
The presence of a distribution of transition temperatures (DTT) is ubiquitous in materials science. It is common to ascribe deviations from theoretical pure-phase behavior to this fact. To adapt the different pure phase ...