EFFECT OF TENSION CONDITIONS ON SUPERPLASTIC BEHAVIOUR OF AN Al-Li-Cu-Mg-Zr ALLOY

Acta Metall Sin

1991, Vol. 27

Issue (6): 126-132 DOI:

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EFFECT OF TENSION CONDITIONS ON SUPERPLASTIC BEHAVIOUR OF AN Al-Li-Cu-Mg-Zr ALLOY

LIU Qing;HUANG Xiaoxu;YAO Mei;YANG Jinfeng Harbin Institute of Technology

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LIU Qing;HUANG Xiaoxu;YAO Mei;YANG Jinfeng Harbin Institute of Technology. EFFECT OF TENSION CONDITIONS ON SUPERPLASTIC BEHAVIOUR OF AN Al-Li-Cu-Mg-Zr ALLOY. Acta Metall Sin, 1991, 27(6): 126-132.

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Abstract A much higher elongation of warm-rolled superplastic Al-Li-Cu-Mg-Zr alloy was made under two-stage strain rate tests comparing with the single ones.During initial stage of deformation, a deformation-induced continuous recrystallization which converted a subgrain structure into a recrystallized grain structure by a conitnuous increase in boundary misorientations had occurred. The higher the strain rate is, the faster the continuous recrystallization and the finer the recrystallized grains will be. The fine recrystallized grain structure formed duringthe first stage deformation is the essential condition for the material to have high strain rate hardening and strain hardening during the low second hardening superplastic deformation. The combination of strain rate hardening and strain hardening is the reason why the higher elongation may be obtained during two-stage superplastic deformation of the alloy.

Key words: Al-Li alloy superplasticity strain hardening strain rate hardening deformation-induced continuous recrystallization

Received: 18 June 1991

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1 Wert J A, Paton N E, Hamilton C H, Mahoney M W. Metall Trans, 1981: 12A: 1267
2 Watts B M, Stowell M J, Baikie B L, Owen D G E. Met Sci, 1976; 10: 189
3 Ridley N. In: Doyama M, Somiya S,Chang R P H eds., Superplasticity, Vol.7, Proc the MRS Int Meeting on Advanced Materials, Tokyo, Japan, 30 May-3 June, 1988, Pennsylvania, USA: Materials Research Society, 1989: 3
4 Ghosh A K, Grandhi C. In: McQueen H J, Bailon J P, Dickson J I, Jonas J J, Akben M G eds., Strength of Metals and Alloys, Proc 7th Int Conf on the Strength of Metals and Alloys, Montreal, Canada, 12-16 August, 1985, Pergamon Press, 1986: 2065
5 Amichi R, Ridley N. In: Sanders T H Jr., Starke E A Jr. eds., Aluminum-Lithium Alloys, Proc 5th Int Aluminum-Lithium Conf, Williamsburg, Virginia, March 27-31, 1989, Birmingham, UK: Materials and Component Engineering Publications Ltd, 1989: 159
6 Liu Qing. Micron Microsc Acta, 1989; 20: 261
7 Liu Qing, Huang Xiaoxu, Yang Jinfeng, Yao Mei. Scr Metall, 1991; 25(2) : 387
8 刘庆.哈尔滨工业大学博士学位论文,1991
9 Caceres C H, Wilkinson D S. Acta Metall, 1984; 32: 415
10 Hamilton C H. Metall Trans, 1989; 20A: 2783
11 Ash B A, Hamilton C H. Scr Metall, 1988; 22: 277

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