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Thermal and magnetic field-induced martensite-austenite transition in Ni50.3Mn35.3Sn14.4 ribbons

Thermal and field-induced martensite-austenite transition was studied in melt spun Ni50.3Mn35.3Sn14.4 ribbons. Its distinct highly ordered columnarlike microstructure normal to ribbon plane allows the direct observation of critical fields at which field-induced and highly hysteretic reverse transformation starts (H=17kOe at 240K), and easy magnetization direction for austenite and martensite phases with respect to the rolling direction. Single phase L21 bcc austenite with TC of 313K transforms into a 7M orthorhombic martensite with thermal hysteresis of 21K and transformation temperatures of MS=226K, Mf=218K, AS=237K, and Af=244K

American Institute of Physics

Author: Hernando, Blanca
Sánchez Llamazares, José Luis
Santos Rodríguez, Jesús Daniel
Escoda i Acero, Ma. Lluïsa
Suñol Martínez, Joan Josep
Varga, Rastislav
Baldomir Fernández, Daniel
Serantes Abalo, David
Abstract: Thermal and field-induced martensite-austenite transition was studied in melt spun Ni50.3Mn35.3Sn14.4 ribbons. Its distinct highly ordered columnarlike microstructure normal to ribbon plane allows the direct observation of critical fields at which field-induced and highly hysteretic reverse transformation starts (H=17kOe at 240K), and easy magnetization direction for austenite and martensite phases with respect to the rolling direction. Single phase L21 bcc austenite with TC of 313K transforms into a 7M orthorhombic martensite with thermal hysteresis of 21K and transformation temperatures of MS=226K, Mf=218K, AS=237K, and Af=244K
Document access: http://hdl.handle.net/2072/220006
Language: eng
Publisher: American Institute of Physics
Rights: Tots els drets reservats
Subject: Aliatges
Alloys
Microestructura
Microstructure
Materials ferromagnètics
Ferromagnetic materials
Transformacions martensítiques
Martensitic transformations
Title: Thermal and magnetic field-induced martensite-austenite transition in Ni50.3Mn35.3Sn14.4 ribbons
Type: info:eu-repo/semantics/article
Repository: Recercat

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