Acta Metall Sin  1989, Vol. 25 Issue (3): 5-11    DOI:

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RELATIONSHIP BETWEEN MICROSTRUCTURE AND PROPERTIES IN Al-2.2Li-2.5Cu-0.2Mg ALLOY

ZHANG Yun;ZHAO Hong'en;YAO Daping;GAO Guozhong;CHEN Jizhi;HU Zhuangqi Institute of Metal Research; Academia Sinica; Shenyang

ZHANG Yun;ZHAO Hong'en;YAO Daping;GAO Guozhong;CHEN Jizhi;HU Zhuangqi Institute of Metal Research; Academia Sinica; Shenyang. RELATIONSHIP BETWEEN MICROSTRUCTURE AND PROPERTIES IN Al-2.2Li-2.5Cu-0.2Mg ALLOY. Acta Metall Sin, 1989, 25(3): 5-11.

Abstract References Related Articles Recommended Metrics Download:  PDF(2567KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The relationship between the microstructures, properties and the phasetransformation in Al-2.2Li-2.5Cu-0.2Mg alloy after various treatments have beenstudied by optical microscopy and TEM observations. It is verified that solutiontreated at 525℃ for 1h is satisfactory for this alloy in which all the alloying ele-menis are dissolved in the α-Al matrix, and aging at 190℃ for 16h is the peak-aged con-dition, the alloy subjected to treatment is strengthened only by T_1 phase. In over-aged or underaged conditions, the alloy are strengthened by two phases, in thesecases, the strengthening effect is smaller than that by one phase. The deformationprlor to aging would develop the plasticity and do not decrease the strength of theexperimenial alloy. Key words:  Al-Li alloy      heat treatment      structure      property      Received:  18 March 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/I3/5 1 宫木美光,日野光雄.金属,1984;54(1) :11 2 Gregson P J, Flower H M. Acta Metall, 1985; 33 (3) : 527 3 Grimes R, Cornish A J, Miller W S, Reynolds M A. Met Mater, 1985: 1: 357 4 Kar R J, Bohlen J W, Chanani G R. In: Starke E A Jr., Sanders T H Jr. eds., Aluminum-Lithium Alloys Ⅱ, TMS-AIME, 1984: 255 5 White J, Miller W S, Palmer I G, Davis R, Saini T S. In: Baker C, Gregson P J, Harris S J, Peel C J eds., Aluminium-Lithium Alloys Ⅲ, London: The Institute of Metals, 1986: 530 6 Starke E A Jr, Sanders T H Jr., Palmer I G. J Met, 1981; 33 (8) : 24 7 Feng W X, Lin F S, Starke E A Jr. In: Starke E A Jr., Sanders T H Jr. eds., Aluminum-Lithium Alloys Ⅱ, TMS-AIME, 1984: 235 8 Bischler P J E, Martin J W. 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