Acta Metall Sin  2004, Vol. 40 Issue (2): 211-214     DOI:

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Formation and Thermal Stability of Nanoscale Cu2(Y, Mg) During the Solidification of Mg65Cu25Y10 Alloy Under High Pressure Condition

ZHANG Jia; ZHANG Haifeng; DONG Pan; QUAN Mingxiu; HU Zhuangqi

Shenyang National Laboratory for Materials Science; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110016

ZHANG Jia; ZHANG Haifeng; DONG Pan; QUAN Mingxiu; HU Zhuangqi. Formation and Thermal Stability of Nanoscale Cu2(Y, Mg) During the Solidification of Mg65Cu25Y10 Alloy Under High Pressure Condition. Acta Metall Sin, 2004, 40(2): 211-214 .

Abstract References Related Articles Recommended Metrics Download:  PDF(3175KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The microstructures of the Mg65Cu25Y10 alloy solidified under pressures of 2--5 GPa and ambient pressure have been investigated by X-ray diffraction, differential scanning calorimetry and transmission electron microscopy. Experimental results show that the pressure has a great influence on the phase microstructure during solidification process. High pressure leads to the favorable precipitation of nanoscale Cu2(Y, Mg) phase, which is a metastable phase and transforms to stable Mg2(Cu, Y) phase after annealing. The mechanism for the effect of the pressure on the grain size during solidification process of Mg65Cu25Y10 alloy has been discussed. Key words:  Mg65Cu25Y10 alloy      pressure      grain size       Received:  06 March 2003      ZTFLH:  TG139.8   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors ZHANG Jia ZHANG Haifeng DONG Pan QUAN Mingxiu HU Zhuangqi URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2004/V40/I2/211 [1] Savage S J, Froes F H. In: Kear B H, Giessen B C eds., Rapidly Solidified Metastable Materials, New York: North-Holland, 1984: 329 [2] Uhlmamm D R, Hays J F, Turnbull D. Phys Chem Glasses, 1966; 7: 159 [3] He D, He M, Kiminami C S, Zhang F X, Xu Y F, Wang W K, Kuo K H. J Mater Res. 2000; 16: 910 [4] Shen Z Y, Shen D J, Zhang Y, Yin X J, Wu H Q. Acta Metall Mater, 1992; 40: 2185 [5] Sun L L, Wu Q, Wang L M, Yao Y S, Dai D Y, Zhang J, Wang W K. Mater Trans, JIM, 2001; 42: 579 [6] Zhang J, Qiu K Q, Wang A M, Zhang H F, Quan M X, Hu Z Q. J Mater Res, 2002; 17: 2935 [7] Parker L J, Atou T, Badding J V. 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