Effect of DC Pulse Patterns on Spark Plasma Sintering Process of [Fe_0.8Co_0.2B_0.05Si_0.2]₉₆Nb₄ Bulk Metallic Glass

Abstract:

The influence of direct current pulse on–off patterns on spark plasma sintering of [Fe_0.8Co_0.2B_0.05Si_0.2]₉₆Nb₄ on kinetics competition and coordination mechanism of the interface bonding and crystallization has been investigated systematically. No crystallization of metallic glassy matrix and good bonding state between the particles were responsible for good mechanical properties of the fabricated Fe-based bulk glassy alloy at 2:9 (on: off) pattern. The higher local micro area’s instantaneous power and larger cooling time caused by low pulse duty ratio played a vital role in consolidation of amorphous alloy powder and desired structural properties.

• Periodical: Materials Science Forum (Volume 849)
• Pages: 28-33
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.849.28
• Online since: March 2016
• Authors: Yue Ting Sun, Hui Liang Shao, Zhan Kui Zhao*
• Keywords: Crystallization, Interface Bonding, Metallic Glass, Pulse Pattern, Spark Plasma Sinter

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