%0 Journal Article
%T EFFECIS OF TEMPERATURE AND OVERLOAD RETARDATION ON CORROSION FATIGUE CRACK GROWTH OF HIGH STRENGTH STEEL
%A QIAN Yourong HE Xiangdong Beijing University of Aeronautics
%A Astronautics
%A Beijing
%A China QIAN Yourong
%A Deptof Materials Science
%A Engineering
%A Beijing University of Aeronautics
%A Astronautics
%A Beijing
%A China
%A <br>QIAN Yourong HE Xiangdong Beijing University of Aeronautics and Astronautics
%A Beijing
%A China QIAN Yourong
%A Dept.of Materials Science and Engineering
%A Beijing University of Aeronautics and Astronautics
%A Beijing
%A China
%J 金属学报(英文版)
%D 1990
%I 
%X The fatigue crack growth rate (CGR) of ultra high strength steel 30CrMnSiNi2A in distilledwater at 18,35 and 55℃ were measured.It was confirmed that the temperature is strongly af-fected on the corrosion fatigue CGR of ultra high strength steel.An expression concerning theeffects of Δ K and temperature on the CGR was proposed.The fact that the apparentactivation energy (36.6 kJ/mol) resulted from regressive analysis of CGR data was similarto the activation energy of hydrogen diffusion in γ-Fe,strongly supporting the theory ofhydrogen-assisted crack growth.The overload retardation effect was greatly reduced in cor-rosion fatigue crack growth,especially at lower frequency,e.g.,0.1 Hz.This phenomenonmight be due to the increase of the SCC component of CGR after an overload.
%K corrosion fatigue
%K crack growth rate
%K temperature effect
%K overload retardation effect<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=18BFE44B496DA8F8A29976C004F76857&yid=8D39DA2CB9F38FD0&vid=38B194292C032A66&iid=38B194292C032A66&sid=02DC3A182A5530DF&eid=334E2BB8B9A55ABB&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=5