%0 Journal Article
%T BRITTLE-DUCTILE TRANSITION OF ANNEAL-EMBRITTLED Fe_(75)Si_(10)B_(15) METALLIC GLASS<br>退火变脆Fe75Si10B15金属玻璃的脆韧性转变
%A WANG Longbao State Key Laboratory of Rapidly Solidified Non-Equilibrium Alloys
%A Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A <br>王隆保
%J 金属学报
%D 1992
%I 
%X Studies were made of the effect of mechanical pulverization on relaxation,crystallization and brittle--ductile transition of the anneal--embrittled Fe_(75)Si_(10)B_(15) metallic glass ribbon. Results show that the Curie temperature, T_c, decreases and the total enthalpy of relaxa-tion increases gradually with variation of pulverized time. DSC traces reveal an extra exothermicpeak, T_(x_1), and a distinct glass transition endothermic peak, T_(g_1), with increasing pulverizedtime, T_c, T_(x_1), and T_(g_1) decrease simultaneously, and the exothermic peak area correspondingto T_(x_1) increases gradually. The surface slip--steps of flaky particles and their corresponding shear are produced by pulverizing the pre--embrittled amorphous glass. The lost ductility of theglass may restore during annealing.
%K mechanical pulverization
%K Fe_(75)Si_(10)B_(15)
%K metallic glass
%K shear band<br>机械研磨
%K 金属玻璃
%K 剪切带
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=875CFEB4F402593861814A737FE4D27E&yid=F53A2717BDB04D52&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=0401E2DB1F51F8DE&eid=09ABD5535D9B6D45&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=1