%0 Journal Article
%T ELECTRON MICROANALYSIS FOR LASER MELTED ZONE IN 45 STEEL WITH Fe-Ni-Cr COATING
%A CHENG Yongxing LI Genfu YU Shaoluo Shanghai University of Engineering Science
%A Shanghai
%A China WANG Huimin No
%A <br>CHENG Yongxing LI Genfu YU Shaoluo Shanghai University of Engineering Science
%A Shanghai
%A China WANG Huimin No. Institute of China State Shipbuilding Corp.
%A Shanghai
%A China Associate Professor
%A Dept.No.
%A Shanghai University of Engineering Science
%A Xianxia Road
%A Shanghai
%A China
%J 金属学报(英文版)
%D 1989
%I 
%X The Fe-Ni-Cr coating laver has been alloyed with 45 steel base metal by transverse.flow typeCO_2 gas laser of maximum output 5kW.The characteristics of the melted zone and the es-sence of the“bright band”has been investigated using the electron microscopy.The resultsshow that the“bright band”belongs to the melted zone and is a vertical section of the planecrystal,The width of the“bright band”equals the height of the plane crystal,which decreaseswith the increase of laser beam scanning rate and the decrease of laser power.This has beenexplained in terms of constitutional supercooling G/R.
%K laser alloying
%K rapid solidification
%K plane crystal<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=E662F0D9D707CC620E603E4612ACB205&yid=1833A6AA51F779C1&vid=0B39A22176CE99FB&iid=38B194292C032A66&sid=6235172E4DDBA109&eid=23104246A5FCFCEF&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=7