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|Title: ||Bulk nano-crystalline alloys|
|Authors: ||T.-S. Chin;C.Y. Lin;M.C. Lee;R.T. Huang;S.M. Huang|
|Contributors: ||NTOU:Institute of Materials Engineering|
|Issue Date: ||2011-10-20T08:06:20Z
|Publisher: ||Materials Today|
|Abstract: ||Abstract:Bulk metallic glasses (BMGs) Fe–B–Y–Nb–Cu, 2 mm in diameter, were successfully annealed to become bulk nano-crystalline alloys (BNCAs) with α-Fe crystallite 11–13 nm in size. A ‘crystallization-and-stop’ model was proposed to explain this behavior. Following this model, alloy-design criteria were elucidated and confirmed successful on another Fe-based BMG Fe–B–Si–Nb–Cu, 1 mm in diameter, with crystallite sizes 10–40 nm. It was concluded that BNCAs can be designed in general by the proposed criteria.
Bulk nano-crystalline alloys (BNCAs) have attracted much attention due to their interesting mechanical and magnetic properties when compared with their fully amorphous and fully crystalline counterparts. Taking as one example, nano-crystallized Bulk Metallic Glasses (BMGs) have been found to possess high ductility comparing with the stiff and brittle precursor BMGs
|Relation: ||12(1-2), pp.34-39|
|Appears in Collections:||[材料工程研究所] 期刊論文|
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