%0 Journal Article
%T IN SITU OBSERVATION OF LOWER BAINITIC CARBIDES PRECIPITATION
%A KANG Mokuang SUN Jialin Northwestern Polytechnical University
%A Xi''an
%A China Deptof Materials Science
%A Engineering Northwestern Polytechnical University
%A Xi''an
%A China
%A <br>KANG Mokuang SUN Jialin Northwestern Polytechnical University
%A Xi''''an
%A China Dept.of Materials Science and Engineering Northwestern Polytechnical University
%A Xi''''an
%A China
%J 金属学报(英文版)
%D 1989
%I 
%X The lower bainitic carbides precipitation in 40CrMnSiMoV steel previously austempered at310℃ was observed in situ by employing a high temperature stage of an ultra high voltageTEM(JEM-1000).The typical lower bamitic carbides were found to have precipitated fromwithin the carbide-free bainitic ferrite after tempering for certain period at a temperaturehigher than that of the isothermal transformation.This revealed that the lower bainitic ferriteis supersaturated with carbon to some extent.The carbide may also precipitate from austenite,but they have no typical morphological features of lower bainitic carbide.
%K bainite transformation
%K carbide precipitation
%K supersaturation
%K high voltage transmission electron microscopy<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=8E2F458DC8F30C49141BC1E66256C9DE&yid=1833A6AA51F779C1&vid=0B39A22176CE99FB&iid=38B194292C032A66&sid=8B59EA573021D671&eid=A1266CF37D675CF1&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=4