%0 Journal Article
%T MARTENSITIC TWINS REORIENTATION AND STRESS-STRAIN BEHAVIOR OF FERROMAGNETIC SHAPE MEMORY ALLOYS Ni-Mn-Ga SINGLE CRYSTALS<br>铁磁形状记忆合金Ni-Mn-Ga单晶的马氏体孪晶再取向应力应变行为
%A DENG Lifen
%A LI Yan
%A JIANG Chengbao
%A XU Huibin
%A <br>邓丽芬
%A 李岩
%A 蒋成保
%A 徐惠彬
%J 金属学报
%D 2004
%I 
%X Ferromagnetic shape memory alloys Ni53Mn23.5Ga23.5, Ni54Mn23Ga23 and Ni50Mn27-Ga23 single crystals were prepared by zone-melting unidirectional solidification. The orientations of the cut single crystals were determined by X-ray diffraction method. The Ni-Mn-Ga crystal growth direction is along 100] with the deviation less than 5 circ. The martensitic twins reorientation process was detected by the stress-strain curves. The compression experiments along different directions were performed, respectively. The results show that the compression improves the texture of favorable martensitic variants and turns them into a single martensitic variant by martensite reorientation.
%K shape memory alloy
%K Ni-Mn-Ga
%K martensitic twin
%K stress-strain<br>形状记忆合金
%K Ni-Mn-Ga
%K 马氏体孪晶
%K 应力-应变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=C2C40BBC0D770594&yid=D0E58B75BFD8E51C&vid=1371F55DA51B6E64&iid=59906B3B2830C2C5&sid=646D2C4F03762FE5&eid=5A700C739C4FF128&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=13