%0 Journal Article
%T Effect of Heat Treatment on Corrosion Performance of Duplex Steel COR 25
%A LI Donggui JPSimpson RSchenk Dalian Acid Proof Pump Plant
%A China Sulzer BrosLtd
%A Winterthur
%A Switzerland
%A <br>李冬贵
%A J.P.Simpson
%A R.Schenk
%J 材料科学技术学报
%D 1989
%I 
%X The effect of heat treatment on the corrosionperformance of austenitic-ferritic duplex stain-less steel COR 25 in aqueous solution containing60%H_3PO_4+4%H_2SO_4+1500 ppm Cl~- at 95℃ was in-vestigated.When the solution temperature wasincreased from 950℃ to 1230℃,the corrosionresistance increased by two orders of magnitude,as shown by electrochemical measurements,im-mersion tests and direct observation under thescanning electron microscope.The specimensheat treated at solution temperatures of 950℃and 1030℃ were severely corroded along thephase boundaries;specimens treated at 113C℃and 1230℃ tended to selective corrosion causedby the dissimilar chromium contents of the aus-tenite and ferrite phases after heat treatment.
%K heat treatment
%K duplex stainless steel
%K electrochemical behavior
%K corrosion<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=429F5A04DA4EE898&yid=1833A6AA51F779C1&vid=94C357A881DFC066&iid=38B194292C032A66&sid=FCD27DC5E1F2EEE7&eid=974CBB04624305A1&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0