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Abstract：
The glass forming ability, mechanical properties and corrosion resistance of Ce69.5-xCu18Al11Nb1.5Yx(x=0,1,2,3) bulk metallic glasses had been studied. It is shown that the Y addition can improve the glass forming ability of Ce-Cu-Al-Nb alloys. The Ce67.5Cu18Al11Nb1.5Y2 sample exhibits the largest supercooled liquid region ΔTx=97 K, and the lowest glass transition temperature Tg=349 K. All the samples exhibit brittle fracture during compression at 298 K. The fracture surfaces of samples are dominated by vein-like patterns. However, all the samples exhibit significant macroscopic plastic deformation during compression at 363 K. The stress overshoot phenomenon can be observed for the samples with x=0-2. The Ce67.5Cu18Al11Nb1.5Y2 sample exhibits the lowest flow stress and the extended strain platform, which are favorable for the plastic working. The Y addition can improve the corrosion resistance of Ce-Cu-Al-Nb alloys, and the Ce67.5Cu18Al11Nb1.5Y2sample has the best corrosion resistance. ©, 2014, Editorial Office of Transactions of Materials and Heat Treatment. All right reserved.
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Transactions of Materials and Heat Treatment
ISSN： 1009-6264
Year： 2014
Volume： 35
Page： 34-39
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 2
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