Observation of Reverse Transformation in Metamagnetic Shape Memory Alloy Ni40Co10Mn34Al16 by High-Field X-Ray Diffraction Measurements
Observation of Reverse Transformation in Metamagnetic Shape Memory Alloy Ni40Co10Mn34Al16 by High-Field X-Ray Diffraction Measurements
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DOI：
10.2320/matertrans.m2010150
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发表时间：
2010-09-01
影响因子：
1.2
通讯作者：
Watanabe, Kazuo
中科院分区：
文献类型：
--
作者：
Mitsui, Yoshifuru;Koyama, Keiichi;Watanabe, Kazuo
Ni40Co10Mn34Al16 metamagnetic形状记忆合金的结构特性进行了X射线粉末衍射测量的温度范围从283到473 K和磁场5 T和增加温度从283 K的合金进行反向马氏体转变正方L1(0)类型结构的晶格参数a (T) = 0 3853海里和c (T) = 0 3299 nm B2型立方结构和晶格参数(c) = 0 (s) = 2924海里在408 K （>A(s)）时，我们直接观察到磁场诱导的反向马氏体相变[doi 10 2320/matertrans M2010150]
The structural properties of metamagnetic shape memory alloy Ni40Co10Mn34Al16 were investigated by X ray powder diffraction measurements in the temperature range from 283 to 473 K and magnetic fields up to 5 T With increasing temperature from 283 K the alloy undergoes the reverse martensitic transformation from the tetragonal L1(0) type structure with the lattice parameter a(t) = 0 3853 nm and c(t) = 0 3299 nm into the B2 type cubic structure with the lattice parameter a(c) = 0 2924 nm at A(s) = 383 K At 408 K (>A(s)) we directly observed the field induced reverse martensitic transformation [doi 10 2320/matertrans M2010150]