%0 Journal Article
%T EFFECT OF STRAIN RATE(?) ON STRAIN HARDENING EXPONENT n OF SOME METALLIC MATERIALS
%A TANG Changguo
%A ZHU Jinhua
%A ZHANG Yuhua
%A ZHOU HuijiuResearch Institute for Strength of Metals Xi''an Jiaotong University Xi''an China
%A <br>TANG Changguo
%A ZHU Jinhua
%A ZHANG Yuhua
%A ZHOU HuijiuResearch Institute for Strength of Metals. Xi'an Jiaotong University. Xi'an. China
%J 金属学报(英文版)
%D 1994
%I 
%X Variable strain rate tension tests for 4 metallic materials show that as the strain rate in creases the strain hardening exponent n decreases. The trend follows a two stage linear relation between n and Ig (?). When (?) < (?)cp, i.e. under quasi-static loading, n can be considered as a constant, but when (?)>(?)cp, n decreases rapidly till an ideal plastic state. n = 0. The characterizations and mechanisms of softening induced by high (?) are discussed.
%K strain rate
%K strain hardening
%K exponent
%K metallic material<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=63A94A60142A81BC4ADD537D600CC424&yid=3EBE383EEA0A6494&vid=DF92D298D3FF1E6E&iid=38B194292C032A66&sid=DD74772618543076&eid=50BBDFAC8381694B&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=5