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出 版 物:《Acta Metallurgica Sinica(English Letters)》 (金属学报(英文版))
年 卷 期:1991年第4卷第1期
页 面:8-12页
核心收录:
学科分类:08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)]
主 题:magnetic field-induced martensitic transformation isothermal and athermal transformation Fe-21Ni-4Mn alloy
摘 要:The pulsed magnetic field induced martensitic transformation with isothermal and athermal kinetics in Fe-2Ni-4Mn(wt-%)alloy has been studied by means of magnetization measurements,optical microscopy and thermodymical *** is shown that there exits a critical magnetic intensity for induing martensitic transformation at a given temperature above *** critical magnetic field increases linearly with increasing ΔT= T-M_*** magnetic field strongly promotes the athermal martensitic transforamtion and restrains the isothermal *** entropy change ΔS for athermal transformation at Ms is 4.13 J/mol· *** effect of magnetic field on martensitic transformation in Fe-21Ni-4Mn alloy is main- ly due to Zeeman ***,plate and butterfly martensities were observed under magnetic field.