%0 Journal Article
%T DIFFUSION OF HYDROGEN IN(α+γ)DUPLEX STAINLESS STEEL
%A HE Jianhong TANG Xiangyun CHEN Nanping Tsinghua University
%A Beijing
%A China Professor
%A Division of Metallic Meterials
%J 金属学报(英文版)
%D 1989
%I 
%X The permeation curves of hydrogen in ferritic-austenitic duplex stainless steel have beenelectrochemically determined.The apparent diffusivity of hydrogen depends on the austenitecontent(f_γ)at room temperature,D=(0.27+0.9/f_γ~2)(10~(-10)cm~2/s).It is simply verified thathydrogen in ferritic-austenitic duplex stainless steel diffuses in “series-connection” formthrough both ferrite grain and austenite grain.The apparent diffusivity isD=D_αD_γ/(f_α~2D_γ+f_γ~2D_α),where D_α,D_γ are diffusivity of hydrogen in ferrite grain andaustenite grain respectively,f_α,f_γ are volume fraction,in turn,of ferrite grain and austenitegrain.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=F2412916DA9D4744B5EB3C0C66048096&yid=1833A6AA51F779C1&vid=0B39A22176CE99FB&iid=E158A972A605785F&sid=6826CBE9C80ACB20&eid=B4E8EA49DAAEB84F&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=13