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J. Mater. Sci. Technol. 2004, 20(02) 160-163 DOI:
ISSN: 1005-0302 CN: 21-1315/TG |
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| Research Articles |
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Effect of Pd on GFA and Thermal Stability of Zr-based Bulk Amorphous Alloy |
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Fengxiang QIN,Haifeng ZHANG,Aimin WANG, Bingzhe DING,Zhuangqi HU |
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Abstract：
The effect of Pd addition on the glass-forming ability and thermal stability of the Zr55Al10Cu30Ni5-xPdx (x=0, 1, 3, 5 at. pct) alloys upon copper-mold casting has been investigated. The structure, thermal stability and microstructure were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM), respectively. It was identified that a new bulk amorphous alloy with the larger supercooled liquid region △Tx of 100 K is obtained with substituting Ni by 1 at. pct Pd. However, the addition of 3 at. pct Pd causes a little increase of thermal stability and an evident decrease of the GFA. The full substitution Ni by 5 at. Pct Pd induces the thermal stability and GFA to decrease simultaneously. It indicates that the thermal stability increases and the GFA decreases with the increasing of Pd content. |
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Keywords：
Bulk Amorphous Alloy
Glass-forming Ability
Thernal stability
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Received 2004-04-01 Revised 1900-01-01 Online: 2009-10-10 |
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