%0 Journal Article
%T INFLUENCE OF Sb ADDITION ON MARTENSITIC AND MAGNETIC TRANSFORMATIONS OF (β+γ) TWO-PHASE Co-Ni-Al SHAPE MEMORY ALLOY<br>Influence of Sb addition on Martensitic and Magnetic Transformation in β+γ Two-phase Based Co-Ni-Al Shape Memory Alloy
%A LUO Fenghua
%A CHEN Jiayan
%A LIU Langfei
%A OIKAWA Katsunari
%A ISHIDA Kiyohito
%A <br>罗丰华
%A 陈嘉砚
%A 刘浪飞
%A 及川胜成
%A 石田清仁
%J 金属学报
%D 2006
%I 
%X Influence of 1% Sb(atomic fraction)addition in the Co_(41)Ni_(32)Al_(27) alloy on martensitic transformation and Curie temperature of the alloy was investigated by OM,SEM,EDX,XRD,DSC and VSM methods.The results show that the crystal structure of martensitic in Co_(41)Ni_(32)Al_(26)Sb_1 alloy is Llo type,as the same as the Co_(41)Ni_(32)Al_(27).Both martensitic transformation temperature T_m and Curie temperature T_C are linear relation to quenching temperature.T_m increased 9 K and T_C increased 7.5 K for every 10 K increasing in quenching temperature.Quenched from same temperature,T_m of Co_(41)Ni_(32)Al_(26)Sb_1 alloy is higher than that of Co_(41)Ni_(32)Al_(27)alloy by 70 K,meanwhile T_C is higher by 15 K.The melting temperature of Co-Ni-Al alloy decreased by the addition of Sb,eutectic structure appeared in Co_(41)Ni_(32)Al_(26)Sb_1 alloy quenched at 1623 K,indicating that the alloy was partially melted. The martensitic transformation temperature range of Co_(41)Ni_(32)Al_(26)Sb_1 alloy is 20-28 K,less than half that of Co_(41)Ni_(32)Al_(27) alloy.This is a very important result to benefit the achievement of large magnetic field induced strain on Co-Ni-Al based alloy.The results of T_m and T_C were explained by total average s+d electron concentration and magnetic valence number,Z_m separately.
%K Co-Ni-Al-Sb alloy
%K martensitic transformation
%K Curie temperature<br>Co-Ni-Al-Sb合金
%K 马氏体相变
%K Curie点
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=C5E425E961CE9C3B&yid=37904DC365DD7266&vid=ECE8E54D6034F642&iid=5D311CA918CA9A03&sid=A1BB529A18D3A83E&eid=4198A31627C9B2A6&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=21