Influence of pressure on the solid state phase transformation of Cu–Al–Bi alloy

doi:10.1088/1674-1056/19/9/096202

Abstract The solid state phase transformation of Cu–Al–Bi alloy under high pressure was investigated by x-ray diffraction, energy dispersive spectroscopy and transmission electron microscopy. Experimental results show that the initial crystalline phase in the Cu–Al–Bi alloy annealed at 750℃ under the pressures in the range of 0–6 GPa is $\alpha$-Cu solid solution (named as $\alpha$-Cu phase below), and high pressure has a great influence on the crystallisation process of the Cu–Al–Bi alloy. The grain size of the $\alpha$-Cu phase decreases with increasing pressure as the pressure is below about 3 GPa, and then increases (P >3 GPa). The mechanism for the effects of high pressure on the crystallisation process of the alloy has been discussed.

Keywords: Cu–Al–Bi alloy high pressure microstructure grain growth

Received: 07 January 2010
Revised: 26 April 2010
Accepted manuscript online:

PACS:	6250
	6155H
	6460M

Fund: Project supported by the National Basic Research Program of China (Grant No. 2007CB616915/2006CB605201) and Program for Changjiang Scholars and Innovative Team (Grant No. IRT0650).

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Li Gong(李工), Liu Jian-Hua(刘建华), Wang Wen-Kui(王文魁), and Liu Ri-Ping(刘日平) Influence of pressure on the solid state phase transformation of Cu–Al–Bi alloy 2010 Chin. Phys. B 19 096202

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Influence of pressure on the solid state phase transformation of Cu–Al–Bi alloy

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