Martensitic phase transformation in rapidly solidified Mn50Ni40In10 alloy ribbons
Martensitic phase transformation in rapidly solidified Mn50Ni40In10 alloy ribbons
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DOI：
10.1063/1.2827179
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发表时间：
2008-01
影响因子：
4
通讯作者：
J. Llamazares;T. Sánchez;J. D. Santos;M. J. Pérez;M. Sanchez;B. Hernando;L. Escoda;J. Suñol
中科院分区：
文献类型：
--
作者：
J. Llamazares;T. Sánchez;J. D. Santos;M. J. Pérez;M. Sanchez;B. Hernando;L. Escoda;J. Suñol
Heusler合金Mn 50 Ni 40 In 10通过熔体纺丝制成优先织构化的带状薄片，发现存在马氏体-马氏体相变，两相均表现出铁磁有序。在两层小晶粒之间形成了垂直于带状晶面生长的有序柱状晶的三层微晶结构。马氏体相变的特征温度为MS= 213 K，Mf= 173 K，AS= 222 K，Af= 243 K。奥氏体相为立方L21结构（298 K时a=0.6013（3）nm，居里点为311 K），转变为调制的14层调制单斜马氏体。
Heusler alloy Mn50Ni40In10 was produced as preferentially textured ribbon flakes by melt spinning, finding the existence of martensitic-austenic transformation with both phases exhibiting ferromagnetic ordering. A microcrystalline three-layered microstructure of ordered columnar grains grown perpendicularly to ribbon plane was formed between two thin layers of smaller grains. The characteristic temperatures of the martensitic transformation were MS=213K, Mf=173K, AS=222K, and Af=243K. Austenite phase shows a cubic L21 structure (a=0.6013(3)nm at 298K and a Curie point of 311K), transforming into a modulated fourteen-layer modulation monoclinic martensite.