Martensite transformation behavior and magnetocaloric effect in annealed Ni-Co-Mn-Sn microwires

2021 ◽  
Vol 274 ◽  
pp. 115477
Author(s):  
Hehe Zhang ◽  
Xuexi Zhang ◽  
Mingfang Qian ◽  
Liping Zhang ◽  
Long Zhang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Martensite Transformation ◽  
Transformation Behavior

scholarly journals Microstructure and Phase Transformation Analysis of Ni50−xTi50Lax Shape Memory Alloys

Crystals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 345 ◽  
Author(s):  
Weiya Li ◽  
Chunwang Zhao
Keyword(s):  
Phase Transformation ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Martensite Transformation ◽  
Transformation Behavior ◽  
Ni Content ◽  
Start Temperature

The microstructure and martensitic transformation behavior of Ni50−xTi50Lax (x = 0.1, 0.3, 0.5, 0.7) shape memory alloys were investigated experimentally. Results show that the microstructure of Ni50−xTi50Lax alloys consists of a near-equiatomic TiNi matrix, LaNi precipitates, and Ti2Ni precipitates. With increasing La content, the amounts of LaNi and Ti2Ni precipitates demonstrate an increasing tendency. The martensitic transformation start temperature increases gradually with increasing La content. The Ni content is mainly responsible for the change in martensite transformation behavior in Ni50−xTi50Lax alloys.

Transformation behavior and magnetocaloric effect in Mn1−xCrxCoGe (x = 0.04 and 0.11) melt-spun ribbons tailored by heat treatment

2017 ◽  
Vol 444 ◽  
pp. 263-269 ◽  
Author(s):  
Gerardo Daniel-Pérez ◽  
J.L. Sánchez Llamazares ◽  
P. Alvarez-Alonso ◽  
C.F. Sánchez-Valdés ◽  
R. Varga ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetocaloric Effect ◽  
Transformation Behavior ◽  
Melt Spun ◽  
Melt Spun Ribbons

scholarly journals Analysis of Martensite Transformation Behavior in Welded Joint of Low Transformation-Temperature Materials

2007 ◽  
Vol 25 (4) ◽  
pp. 560-568 ◽  
Author(s):  
Junji YAMAMOTO ◽  
Susumu MEGURO ◽  
Yoshiki MURAMATSU ◽  
Naoya HAYAKAWA ◽  
Kazuo HIRAOKA
Keyword(s):  
Transformation Temperature ◽  
Martensite Transformation ◽  
Welded Joint ◽  
Transformation Behavior

Martensite Transformation, Magnetotransport Properties, and Magnetocaloric Effect in Ni47Mn42In11 Alloy

2019 ◽  
Vol 61 (4) ◽  
pp. 654-658 ◽  
Author(s):  
Yu. V. Kaletina ◽  
E. G. Gerasimov ◽  
P. B. Terent’ev ◽  
A. Yu. Kaletin
Keyword(s):  
Magnetocaloric Effect ◽  
Martensite Transformation

Isothermal Martensitic Transformation Kinetics in Ni-Mn-Sn Ferromagnetic Shape Memory Alloys

2009 ◽  
Vol 1200 ◽  
Author(s):  
Patrick Shamberger ◽  
Alexandre Pakhomov ◽  
Fumio Ohuchi
Keyword(s):  
Phase Transformation ◽  
Martensitic Transformation ◽  
Martensite Transformation ◽  
Transformation Kinetics ◽  
Transformation Behavior ◽  
Ferromagnetic Shape Memory Alloys ◽  
Austenite Transformation ◽  
Ferromagnetic Shape Memory ◽  
Kinetics Of ◽  
Isothermal Martensitic Transformation

AbstractThis study examines the kinetics of the martensitic phase transformation in a representative Ni-Mn-Sn Heusler alloy. Here, we present data on isothermal and continuous cooling/warming transformations in both bulk polycrystalline and individual small particle samples. We demonstrate that while the martensite to austenite transformation proceeds very rapidly (faster than the time-scale of our observations), the austenite to martensite transformation has a significant isothermal component. A similar asymmetry is also noted in transformation behavior of individual martensite plates. We conclude that the observed time dependence is due primarily to nucleation-limited kinetics.

scholarly journals Effect of solidification rate on martensitic transformation behavior and adiabatic magnetocaloric effect of Ni50Mn35In15 ribbons

2018 ◽  
Vol 748 ◽  
pp. 464-472 ◽  
Author(s):  
C.O. Aguilar-Ortiz ◽  
J.P. Camarillo-García ◽  
J. Vergara ◽  
P. Álvarez-Alonso ◽  
D. Salazar ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Magnetocaloric Effect ◽  
Solidification Rate ◽  
Transformation Behavior

Modeling the Effect of Stress and Plastic Strain on Martensite Transformation

2010 ◽  
Vol 638-642 ◽  
pp. 2634-2639 ◽  
Author(s):  
Mehran Maalekian ◽  
Ernst Kozeschnik
Keyword(s):  
Plastic Deformation ◽  
Plastic Strain ◽  
Compressive Stress ◽  
Martensite Transformation ◽  
Quantitative Modeling ◽  
Martensite Formation ◽  
Eutectoid Steel ◽  
Transformation Behavior ◽  
Shear Transformation

The influence of compressive stress up to 250 MPa and plastic deformation of austenite on the martensite transformation behavior of a eutectoid steel is studied both experimentally and theoretically. It is demonstrated that martensite formation is assisted by stress but it is retarded when transformation occurs from plastically deformed austenite. With the quantitative modeling of the problem based on the theory of displacive shear transformation, the explanation of contradicting observations is presented.

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