%0 Journal Article
%T MECHANICAL PROPERTIES OF BINARY Al-Li ALLOYS AT CRYOGENIC TEMPERATURE<br>二元Al-Li合金的低温力学性能
%A YAO Daping
%A HU Zhuangqi
%A LI Yiyi
%A ZHANG Yun
%A SHI Changxu
%A <br>姚大平
%A 胡壮麒
%A 李依依
%A 张匀
%A 师昌绪
%J 材料研究学报
%D 1990
%I 
%X The mechanical properties of pure aluminum,Al-1Li and Al-2.5Li alloyshave been investigated from room temperature to 77K.The ultimate tensile strength andelongation increased much with the decrease of test temperature,whereas the yieldstrengths show a slight increment or even unchangeableness.It has also been found that thework hardening capacity of alloys is also much improved at cryogenic temperature.The ag-ing temperature is scarcely related to the increase in tensile properties at low temperatures.Compared to room temperature,fracture surface shows greater deformation traces beforecracking of cryogenic temperature.
%K Al-Li alloy
%K cryogenic mechanical properties
%K aging
%K work hardening capacity<br>铝-锂合金
%K 低温力学性能
%K 时效
%K 加工硬化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=CA2D10185D36D149&yid=8D39DA2CB9F38FD0&vid=E158A972A605785F&iid=E158A972A605785F&sid=F637763636425CAF&eid=C2F76551C0111538&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=0&reference_num=1