%0 Journal Article
%T STUDY ON OPTIMUM OF LASER-SHOCKING PARAMETERS FOR IMPROVING FATIGUE LIFE OF AIRCRAFT ALUMINUM ALLOY<br>STUDY ON OPTIMUM OF LASER-SHOCKING PARAMETERS FOR IMPROVING FATIGUE LIFE OF AIRCRAFT ALUMINUM　ALLOY
%A Y K Zhang
%A GR Hua
%A XH Lu
%A <br>Y.K.Zhang
%A G.R.Hua
%A X.H.Lu
%J 金属学报(英文版)
%D 1998
%I 
%X The aircraft aluminum 2024-T62 is shock-treated by pulsed laser with the same wavelength and different pulse durations. The laser parameters, arrangements of laser optics and strengthening effects are investigated. The optimal laser-shocking parameters, i.e., a pulse durotion (FWHM) of 30ns, shot spot 7 to 10mm in diameter and pulse energy of 15-20J are obtained under the condition that the Q modulation crystal is KD*P and the laser optical system has three amplification stages. Therefore, the fatigue life of aluminum specimens is increased greatly and the maximum increasement is 23. 7 times.
%K Al-Cu-Mg alloy
%K fatigue life
%K laser treatment<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=C9AB8B59D5D57E96A75286E8976FDE74&yid=8CAA3A429E3EA654&vid=708DD6B15D2464E8&iid=CA4FD0336C81A37A&sid=1D0FA33DA02ABACD&eid=5D71B28100102720&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=6