BULK Al90Mn8Ce2 ALLOY WITH ULTRA HIGH STRENGTH

Acta Metall Sin

2004, Vol. 40

Issue (4): 355-358 DOI:

Research Articles

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BULK Al90Mn8Ce2 ALLOY WITH ULTRA HIGH STRENGTH

ZHAO Zhankui; YAO Kefu; LI Jianchen; JIANG Qing

Department of Mechanical Engineering; Tsinghua University; Beijing 100084

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ZHAO Zhankui; YAO Kefu; LI Jianchen; JIANG Qing. BULK Al90Mn8Ce2 ALLOY WITH ULTRA HIGH STRENGTH. Acta Metall Sin, 2004, 40(4): 355-358 .

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Abstract Using rapid solidification (RS) and powder metallurgy (PM) technique,　 Al90Mn8Ce2 bulk alloy with ultra high strength and　20 mm in diameter and 10 mm in length has been prepared. The density of the bulk alloy is up to 99%. Their ultimate pressure strength　and fracture strain are 895 MPa and above 6%, respectively. It has　been found that the high strength is attributed to the metastable icosahedral quasicrystal phase embedded in the α--Al matrix, which has been confirmed to be still stable at 803 K under the　pressure of 1.2 GPa.

Key words: ultra high strength Al--base alloy powder metallurgy

Received: 22 April 2003

ZTFLH:

TG146.21

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	ZHAO Zhankui
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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2004/V40/I4/355

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