中国物理B ›› 2009, Vol. 18 ›› Issue (7): 3031-3034.doi: 10.1088/1674-1056/18/7/069
孟凡斌1, 刘国栋1, 何燕1, 代学芳1, 罗鸿志1, 李养贤1, 陈京兰2, 吴光恒2, 郭红俊3
Meng Fan-Bin(孟凡斌)a)†, Guo Hong-Jun(郭红俊)b), Liu Guo-Dong(刘国栋)a), Liu He-Yan(刘何燕)a), Dai Xue-Fang(代学芳)a), Luo Hong-Zhi(罗鸿志)a), Li Yang-Xian(李养贤)a), Chen Jing-Lan(陈京兰)c), and Wu Guang-Heng(吴光恒)c)
摘要: The martensitic transformation in Co37Ni34Al29 ribbon is characterized in detail by means of in-situ thermostatic x-ray diffraction and magnetic measurements. The results show a structural transition from the body-centred cubic to martensite with a tetragonal structure during cooling. Comparison between the results of the diffraction intensity with the magnetic susceptibility measurements indicates that the martensitic transformation takes place in several different steps during cooling from 273 to 163~K. During heating from 313 to 873~K, the peak width becomes very wide and the intensity turns very low. The γ-phase (face-centred cubic structure) emerges and increases gradually with temperature increasing from 873 to 1073~K.
中图分类号: (Martensitic transformations)