Modeling of Microimprinting of Bulk Metallic Glasses

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J Mater Sci Technol ›› 2006, Vol. 22 ›› Issue (06): 851-854.

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Modeling of Microimprinting of Bulk Metallic Glasses

Ming CHENG, John A.Wert

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China...

Received:2005-12-30 Revised:2006-04-29 Online:2006-11-28 Published:2009-10-10
Contact: Ming CHENG

Abstract

Abstract: A finite element analysis (FEA) model has been developed to analyze microimprinting of bulk metallic glasses (BMG) near the glass transition temperature (Tg). The results reveal an approximately universal imprinting response for BMG, independent of surface feature length scale. The scale-independent nature of BMG imprinting derives from the flow characteristics of BMG in the temperature range above Tg. It also shows that the lubrication condition has a mild influence on BMG imprinting in the temperature range above Tg.

Key words: Bulk metallic glasses, Finite element analysis, Constitutive model, Imprinting

Ming CHENG, John A.Wert. Modeling of Microimprinting of Bulk Metallic Glasses[J]. J Mater Sci Technol, 2006, 22(06): 851-854.

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Modeling of Microimprinting of Bulk Metallic Glasses

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