%0 Journal Article
%T LOW ENERGY DISLOCATION STRUCTURES DUE TO FATIGUE SOFTENING
%A CHAI Huifen WANG Liqin Xi''''an Jiaotong Uuiversity
%A Xi''''an
%A ChinaLAIRD Campell University of Pennsylvania
%A USA[Originally published in ACTA METALL SIN
%A <br>CHAI Huifen WANG Liqin Xi''an Jiaotong Uuiversity
%A Xi''an
%A ChinaLAIRD Campell University of Pennsylvania
%A U.S.A.[Originally published in ACTA METALL SIN
%J 金属学报(英文版)
%D 1989
%I 
%X The evolution of dislocation structures in 6% prestrained steel 1018 during fatigue has beenstudied by TEM.The dislocations are quite movable,the loose cells quickly change to“checkboard”structures,in which the main cell walls lie about {100}.Then,the low energydislocation structures i.e.dipolar walls and abyrinth structures are evolved.The characteristicof labyrinth and the orientation of dipolar walls are quite similar to fcc crystal.This indicatesthe energy state of system and the moving ability of dislocations are important factors affect-ing softening process,rather than the slip geometric characteristic of dislocations and detailsof dislocations.The decreasing in misorientation between adjoining cells and internal stressare discussed.
%K steel 1018
%K fatigue softening
%K dislocation configuration<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=9410AE84D56DF16A3BDB7B82EB06A4B6&yid=1833A6AA51F779C1&vid=0B39A22176CE99FB&iid=B31275AF3241DB2D&sid=B941678158018439&eid=CB3428B1EFB1C133&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=9