%0 Journal Article
%T Factors Affecting the Relation of Fracture Toughness V_(GC) with Critical Void Growth Ratio R_C/R_O
%A Li ZHOU
%A <br>
%J 材料科学技术学报
%D 1998
%I 
%X The relationship between fracture toughness VGC and critical void growth RC/RO was studied for ten kinds of Steel. The macroscopic fracture toughness VGC was determined by using notched tensile specimens. and the microscopic parameters of critical void growth ratio RC/RO were quantitatively measured under SEM. Then, the coefhcient C in the relation VGC = C In(RC/RO) proposed in author's past work was specifically explored. The correlation of C with tensile proderty parameter φ=σyδ/(Eφn) was presented for the Steel investigated, and the effects of low temperature on C were also discussed. Results show that the coefficient C is linearly related to the parameter and insensitive to low temperature.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=36E7D565CB6F44C2&yid=8CAA3A429E3EA654&vid=F3583C8E78166B9E&iid=B31275AF3241DB2D&sid=F6467E7C54ED952D&eid=39E48869A719B9DE&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0