%0 Journal Article
%T The effect of rapid quenching from melt on Martensitic transition and strain cha racteristics of Ni-Mn-Ga alloy<br>熔体快淬对Ni-Mn-Ga合金马氏体相变特征及应变的影响
%A Li Jian-Liang
%A Zhao Wei-Ren
%A Zhang Yang-Huan
%A Wang Xin-Lin
%A Zhang Jian-Fu
%A Guo Shi-Hai
%A <br>李健靓
%A 赵韦人
%A 张羊换
%A 王新林
%A 张建福
%A 郭世海
%J 物理学报
%D 2003
%I 
%X Ni50Mn27Ga23/sub> alloy was prepared by melt_spinning at wheel velocities of 2,4 and 8m/s separately. The experimental results showed that the rapid quenching caused the decrease of the martensitic transformation temperature an d Curie temperature, while subsequent annealing would increase the depressed val ues. The NiMnGa specimens with a single_phase structure could be obtained more e asily in melt_spun ribbons than in cast alloys. Furthermore, x_ray diffraction s tudies revealed that the main diffraction peak drifted from (220) to (400) in me lt_spun ribbons, which made the texture form, and subsequent annealing made it d isappear. The effects of rapid quenching on the phase_transition strain and magn etic field_induced strain are very complicated. It was found that the phase tran sition strain and magnetic field_induced strain of melt_spun ribbons with textur e were larger than that of cast specimens.
%K Ni50Mn27Ga23
%K rapid quenching
%K Mart ensitic transition
%K strain<br>Ni50Mn27Ga23，
%K 快淬，
%K 马氏体相变，
%K 应变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=00B9C3DB82C2E9D4&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=708DD6B15D2464E8&sid=D7BEECB636A8C765&eid=720E49F6DB248E5D&journal_id=1000-3290&journal_name=物理学报&referenced_num=5&reference_num=15