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Shenglong DAI Guifu YU Minggao YAN Institute of Aeronautical Materials , Beijing , 100095 , China
材料科学技术（英）
An effective dispersion-strengthening phase in Al-8Fe-2Mo-2Zr-2Nd-0.7Ti-1.6Si alloy was identified to be an aged precipitate phase with possible chemical stoichiometry of Al_(20)(Ti,Mo)_2 Nd and fcc crystal structure with a_o=1.455 nm.The structure was determined to be Fm3m space group.
关键词: high temperature Al alloy , null , null
A modified nucleation and competitive growth kinetic theory considering unsteady nucleation and effect of composition in dilute binary alloys was suggested,based on which the selections of δ.δ' and α phases in undercooled Al-Li melts were summarized by both isothermal and continuous cool- ing treatment methods.
关键词: undercooling , null , null
