%0 Journal Article
%T Growth Morphologies of a Binary Alloy with Low Anisotropy in Directional Solidification<br>GROWTH MORPHOLOGIES OF A BINARY ALLOY WITH LOW ANISOTROPY IN DIRECTIONAL SOLIDIFICATION
%A ME Li
%A GC Yang
%A <br>M.E
%A Li
%A G.
%A C.
%A Yang
%J 金属学报(英文版)
%D 2007
%I 
%X Two new classes of growth morphologies, called doublons and seaweed, were simulated using a phase-field method. The evolution of doublon and seaweed morphologies was obtained in directional solidification. The influence of orientation and velocity on the growth morphology was investigated.It was indicated that doublons preferred growing with its crystallographic axis aligned with the heat flow direction. Seaweed, on the other hand, could be obtained by tilting the crystalline axis to 45°. Stable doublons could only exist in a range of velocity regime. Beyond this regime the patterns formed would be unstable. The simulation results agreed with the reported experimental results qualitatively.
%K growth morphologies
%K low anisotropy
%K phase-field method
%K directional solidification
%K DIRECTIONAL SOLIDIFICATION
%K ANISOTROPY
%K BINARY ALLOY
%K simulation results
%K experimental
%K patterns
%K would
%K unstable
%K Stable
%K exist
%K range
%K regime
%K crystalline
%K hand
%K growing
%K crystallographic
%K axis
%K aligned
%K heat flow
%K direction<br>生长形态
%K 各向异性
%K 相-场法
%K 定向凝固
%K 二元合金
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=A1CF72C9E4626BE276EF2D5EDEF1C4E2&yid=A732AF04DDA03BB3&vid=A04140E723CB732E&iid=E158A972A605785F&sid=B799C1769FCACDC8&eid=7ABC4505E3960D2B&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=17