%0 Journal Article
%T RELATIONSHIP BETWEEN CRYSTALLIZATION TEMPERATURE AND PRE-EXISTING NUCLEI IN THE AMORPHOUS Ni-P ALLOY<br>非晶态Ni-P合金的晶化温度与预存晶核的关系
%A LU Ke Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A WANG Jingtang Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A <br>卢柯
%A 王景唐
%J 金属学报
%D 1988
%I 
%X 用经典的相变理论(J-M-A方程)导出了由核长大主导的非晶态合金晶化的峰值温度(T_P)与预存晶核密度(N_0)之间的关系式: T_P~2exp(-Eg/RT_P)=L/N_0~(1/3)其中Eg为核长大激活能,L为常数,R为气体常数.通过对非晶Ni-P合金的预退火处理,获得预存晶核密度不同的非晶态样品,在DSC上测量这些样品的晶化温度.结果表明,上述关系式与实验结果符合很好,利用此关系式可估算出核长大速率常数(U_0),讨论了预退火处理对晶化开始温度T_x及△T_(Px)=T_P—T_x的影响.
%K Ni-P alloy
%K amorphous alloy
%K crystallization temperature
%K pre-existing nuclei
%K pre-anneal treatment<br>Ni-P合金
%K 非晶态合金
%K 晶化温度
%K 预存晶核
%K 预退火处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=9D7DC3C2C4F806771083E7965E2D7E88&yid=0702FE8EC3581E51&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=73579BC9CFB2D787&eid=A58CF3BAE79427D0&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1