Interface observation of iron based metallic glassy powder in pressurized liquid phase sintered compaction

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To consolidate [(Fe0.5Co0.5)0.75Si0.05B0.2] 96 Nb4 metallic glassy powder to full density, a pressurized liquid phase sintering was employed, which was intended to promote a viscous flow deformation of solid particles and also to enhance the intergranular permeation of the liquid phase. Al-32.5wt.%Cu was chosen as a liquid phase component having low melting point. The mixed powders were sintered by induction heating furnace with heating rate of 200 K/min and applying pressure of 400 MPa for maintaining the amorphous phase. SEM and TEM observations shows the interfacial reaction layers were formed between metallic glassy phase and liquid phase. While this layer can contribute for to reinforce the fracture strength, the layer interferes with deformation of metallic glassy powders and also interferes with squeezing of liquid phase. This study report the interfacial microstructure between the powder particles by TEM observations.

Original languageEnglish
Title of host publicationEuro PM 2014 Congress and Exhibition, Proceedings
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Print)9781899072446
Publication statusPublished - 2014
EventEuro PM 2014 International Conference and Exhibition - Salzburg, Austria
Duration: 2014 Sep 212014 Sep 24

Other

OtherEuro PM 2014 International Conference and Exhibition
Country/TerritoryAustria
CitySalzburg
Period14/9/2114/9/24

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Metals and Alloys
  • Surfaces, Coatings and Films

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