Acta Metall Sin  1989, Vol. 25 Issue (5): 30-35    DOI:

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MICROSTRUCTURE STUDY OF CONSTITUENT PHASES IN 2024 SERIES Al ALLOYS

WANG Shuncai;LI Chunzhi;BIAN Weimin;YAN Minggao Institute of Aeronautical Materials; Beijing WANG Shuncai; Institute of Aeronautic Materials; 100095 Beijing

WANG Shuncai;LI Chunzhi;BIAN Weimin;YAN Minggao Institute of Aeronautical Materials; Beijing WANG Shuncai; Institute of Aeronautic Materials; 100095 Beijing. MICROSTRUCTURE STUDY OF CONSTITUENT PHASES IN 2024 SERIES Al ALLOYS. Acta Metall Sin, 1989, 25(5): 30-35.

Abstract References Related Articles Recommended Metrics Download:  PDF(2649KB)  Export:  BibTeX | EndNote (RIS)       Abstract  X-ray microanalysis, convergent beam electron diffraction (CBED) andselected area electron diffraction (SADP) studies have conducted on the structuresand compositions of the constituent phases in 2024 series Al alloys. Partial substi-tution of alloying elements has found to occur in all the constituent phases caus-ing small deviations from the stoichiometric compositions reported for the ternarycompounds. The dominant phase is α-Al_(12)(FeMn)_3Si which has body center cubiccrystal structure, with the Im3 space group and lattice rarameter of α=1.25 nm.The next dominant phase is Cu_2FeAl_7 which has primitive tetragonal crystal struc-ture, with the P4/mnc space group and lattice parameters of α=0.6336nm, c=1.487nm. The minor phase is α'-Al_(12)Fe_3Si which has primitive cubic crystal structure,with the Pm3 space group and lattice parameter of α=1.27 nm. Key words:  Al alloy      constituent phases      microstructure      Received:  18 May 1989      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1989/V25/I5/30 1 Price C W, Rosenfield A R, Thompson D S. AD AOO2875, 1974: 76 2 Mondolfo L F. Aluminum Alloys: Structure and Properties, London: Butterworth, 1976: 494, 566, 534． 641, 635, 638 3 Steeds J W. In: Hren J J, Goldstein J I, Joy D C eds., Introduction to Analysis Electron Microscopy, New York: Plenum Press, 1979: 387 4 冯国光.物理,1983;12:183 5 Buxton B F, Eades J A, Steeds J W, Rackham G M. Philos Trans R Soc, Lond, 1976: 281A; 171 6 朱静,叶恒强,王仁卉,温树林,康振川.高空间分辨分析电子显微学,北京:科学出版社,1987:97 7 Gjonnes J, Moodie A F. Acta Crystallogr, 1965; 19: 65 8 Ayer R, Koo J Y, Steeds J W, Park B K. Metall Trans, 1985; 16A: 1925 [1] WANG Lei, LIU Mengya, LIU Yang, SONG Xiu, MENG Fanqiang. 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