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【原创】Scripta最新2篇文章－09-09-14
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1 Improved thermal stability and ductility of flux treated Pd40Ni40Si4P16 BMG Publication year: 2009 Source: Scripta Materialia, In Press, Accepted Manuscript, Available online 13 September 2009 N., Chen , D., Pan , D.V., Louzguine-Luzgin , G.Q., Xie , M.W., Chen , ... In this letter, we report on significantly enhanced plasticity in addition to improvement of thermal stability in Pd40Ni40Si4P16 bulk metallic glass by flux treatment. With fluxing, the plastic strain was remarkably enhanced from approximately 3% to up to 52%, which likely correlates with a larger volume of shear transformation zones. It is suggested that the flux treatment is not only a good approach to improve the thermal stability but may be a promising way to enhance the plasticity of BMGs. http://www.sciencedirect.com/sci ... a378aee8b7817012a7f 2 Enhanced mechanical properties in a Zr-based metallic glass caused by deformation-induced nanocrystallization Publication year: 2009 Source: Scripta Materialia, In Press, Accepted Manuscript, Available online 13 September 2009 J., Fornell , E., Rossinyol , S., Suriñach , M.D., Baró , W.H., Li , ... Bulk metallic glass with composition Zr62Cu18Ni10Al10 exhibits high yield stress, large elasticity and large plasticity when compressed. During nanoindentation, strain hardening is observed until the maximum applied load reaches 100 mN; for higher maximum loads the typical softening found in metallic glasses is evidenced. Transmission electron microscopy observation of the nanoindented and compressed samples reveals the occurrence of deformation-induced nanocrystallization, which is likely to be related to the mechanical properties observed in this alloy. http://www.sciencedirect.com/sci ... b6cc84c593f70290bba |
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