%0 Journal Article
%T Structural Changes of α Phase in Furnace Cooled Eutectoid Zn-Al Based Alloy
%A Y.H.Zhu
%A K.C.Chan
%A G.K.H.Pang
%A T.M.Yue
%A W.B.Lee
%J 材料科学技术学报
%D 2007
%I 
%X Furnace cooling is a slow cooling process. It is of importance to study structural evolution and its effects on the properties of alloys during the furnace cooling. Decomposition of aluminium rich α phase in a furnace cooled eutectoid Zn-Al based alloy was studied by transmission electron microscopy. Two kinds of precipitates in the α phase were detected in the FCZA22 alloy during ageing at 170℃. One was the hcp transitional α＂ m phase which aooears as directional rods and the round precipitates. The other was the fcc α＇m phase. 〈101〉. The orientation relationship between the a phase and transitional phase α＇m was determined as （022）α＇m （fcc）//（022^-）α（fcc）, 1^-11]α＇m, （fcc）//2^-33]α（fcc）. The non-equilibrium phase decomposition of the α phase is discussed in correlation with the equilibrium phase relationships.
%K 炉内冷却共析体
%K Zn-Al基合金
%K α相
%K 结构变化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=5D9C3F5A667D89E6C74E79E860DE9F34&yid=A732AF04DDA03BB3&vid=EA389574707BDED3&iid=38B194292C032A66&sid=15251AE9C02726D3&eid=EA64BD0B2FF6E786&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=17