%0 Journal Article
%T Size effects of yield strength in the tensile test of brass foil<br>黄铜箔拉伸屈服强度的尺寸效应
%A Bin GUO
%A Jian ZHOU
%A Debin SHAN
%A <br>郭斌
%A 周健
%A 单德彬
%A 王慧敏
%J 金属学报
%D 2008
%I 
%X In order to investigate the size dependence of the plastic deformation properties for metal foil, uniaxial tensile tests of brass foil specimens with different thicknesses and grain sizes are performed at room temperature. The results show that with the decreasing thickness or grain size, the yield strength of the specimen increases. The influence of the grain size on the yield strength meets the Hall-Petch relation of the grain size strengthening. The increase in the yield strength of the thinner specimen is expected to attribute to the decrease of grain size. In addition, the ratio of thickness to average grain size can not express the size effect of the yield strength if the thickness is less than 100μm.
%K metal foil
%K microforming
%K micro-tensile
%K yield strength
%K size effect<br>黄铜箔
%K 微拉伸
%K 屈服强度
%K 尺寸效应
%K 厚度/晶粒尺寸比
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=8872B25DC48FD7C0EE43BC384B4F2EA2&yid=67289AFF6305E306&vid=1AE5323881A5ECDC&iid=E158A972A605785F&sid=A4E67967A1AB25F0&eid=B941678158018439&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=18