CERAMICS PARTICULATE REINFORCED Mg65Cu20Zn5Y10 BULK METALLIC GLASS COMPOSITES

Acta Metall Sin

2004, Vol. 40

Issue (7): 726-730 DOI:

Research Articles

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CERAMICS PARTICULATE REINFORCED Mg65Cu20Zn5Y10 BULK METALLIC GLASS COMPOSITES

XU Yingkun; XU Jian

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

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XU Yingkun; XU Jian. CERAMICS PARTICULATE REINFORCED Mg65Cu20Zn5Y10 BULK METALLIC GLASS COMPOSITES. Acta Metall Sin, 2004, 40(7): 726-730 .

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Abstract Ceramic particles of SiC (10%) or TiB2 (15%) (volume fraction) were added in the Mg65Cu20Zn5Y10 bulk metallic glass forming alloy to form the bulk metallic glass composites using copper mold casting. The introduced particles have no adverse effect on the glass forming ability of the matrix alloy. The second phase ceramic particles uniformly disperse in the glass matrix. Uniaxial compressive strength of the composites reached about 1 GPa, a factor of 1.2 higher than the Mg65Cu20Zn5Y10 monolithic glass. The failure for the Mg65Cu20Zn5Y10 monolithic glass occurs at a stage of elastic strain without any visible plastic strain before the fracture. In contrast, a plastic strain to failure about 0.9% was obtained for the TiB2 particulate reinforced composite.

Key words: Mg based alloy metallic glass composite

Received: 15 July 2003

ZTFLH:	TB333
	TG113.25

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2004/V40/I7/726

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