Microstructural characterization of the emulsified Cu47Ti 33Zr11Ni6Sn2Si1 alloy powder

Ho Suk Kang, Hee Sam Kang, Woo Young Yoon

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

Abstract

Phase selection and microstructural morphology change of the Cu 47Ti33Zr11Ni6Sn2Si 1 alloy were investigated through the droplet emulsion technique(DET). The emulsified Cu47Ti33Zr 11Ni6Sn2Si1 alloy powders showed several different microstructures depending on the amount of undercooling. The amount of undercooling of the powders was monitored by differential thermal analysis and was matched with the microstructures. The phase transition of Cu47Ti33Zr11Ni6Sn2Si 1 alloy powders according to the increase of undercooling proceeds by the process Cu4Ti3 +CuTi +Cu2Ti +Cu 51Zr14 → Cu4Ti3 + CuTi + Cu2Ti + Cu51Zr14 + CuTi2 → Cu2Ti + Cu51Zr14 + CuTi2 → Cu51Zr14 +CuTi2. Specifically, the morphology and scale of the CuTi2 phase were examined by SEM observation, and area fraction measurement using an image analyzer, transmission electron microscopy studies, and microhardness tests showed that the amorphous phase could be synthesized by DET. A microstructure selection map of Cu 47Ti33Zr11Ni6Sn2Si 1 alloy powders for tailored solidification was also suggested.

Original languageEnglish
Title of host publicationHeat Treatment of Materials, AHTM ' 05 - Proceedings of the 3rd Asian Conference on Heat Treatment of Materials
PublisherTrans Tech Publications Ltd
Pages623-634
Number of pages12
ISBN (Print)9783908451259
DOIs
Publication statusPublished - 2006
Event3rd Asian Conference on Heat Treatment of Materials,(AHTM '05) - Gyeongju, Korea, Republic of
Duration: 2005 Nov 102005 Nov 12

Publication series

NameSolid State Phenomena
Volume118
ISSN (Print)1012-0394

Other

Other3rd Asian Conference on Heat Treatment of Materials,(AHTM '05)
Country/TerritoryKorea, Republic of
CityGyeongju
Period05/11/1005/11/12

Keywords

  • Cu-ti-zr-ni-sn-si
  • Droplet emulsion technique(det)
  • Microstructure selection map

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • General Materials Science

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