%0 Journal Article
%T Effect of Nb addition on the glass transition and crystallization kinetics of bulk Cu-Zr metallic glasses
Nb添加对Cu-Zr非晶合金玻璃转变和晶化动力学的影响
%A Fang Qi
%A Wang Qing
%A Zhao Zhe-Long
%A Dong Yuan-Da
%A
方祺
%A 王庆
%A 赵哲龙
%A 董远达
%J 物理学报
%D 2007
%I
%X In the present work,bulk Cu_ 50.3Zr_ 49.7-xNb_x(x0,2)amorphous alloys 2 mm in diameter were produced by copper mold suction casting.The effect of Nb addition on the glass transition as well as crystallization kinetics of the binary Cu based amorphous alloy has been investigated by using differential scanning calorimetry(DSC).It is found that the alloy containing 2%Nb has a lower fragility parameter m and higher crystallization activation energy E_c,which suggests that the thermal stability and hence the glass forming ability of the surpercooled metallic liquid for the Cu based alloy are enhanced by the addition of very small amounts of Nb element.
%K Cu-Zr amorphous alloy
%K effect of Nb addition
%K glass transition kinetics
%K crystallization kinetics
cu-zr非晶合金
%K Nb添加
%K 玻璃转变动力学
%K 晶化动力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=11D219F1D006D0EA&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=38B194292C032A66&sid=9438DF4A1CE63979&eid=4944E31C6DB9BAF5&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=25