Synthesis of Ti-Based Bulk Metallic Glass Composites Containing WC Particles

• Jeng I-Kuan

  Institute of Materials Engineering, National Taiwan Ocean University

• Lee Pee-Yew

  Institute of Materials Engineering, National Taiwan Ocean University

Abstract

The preparation of Ti₅₀Cu₂₈Ni₁₅Sn₇ metallic glass composite powders was accomplished by mechanical alloying of pure Ti, Cu, Ni, Sn and WC for 18 ks. In the ball-milled composites, initial WC particles were homogeneously dispersed in the Ti-based alloy glassy matrix. The metallic glass composite powders exhibited a large supercooled liquid region just below the crystallization temperature. The presence of WC nanoparticles did not change the glass formation ability of amorphous Ti₅₀Cu₂₈Ni₁₅Sn₇ powders. The as-milled Ti₅₀Cu₂₈Ni₁₅Sn₇ and composite powders were consolidated by vacuum hot pressing into compact discs with a diameter and thickness of 10 and 4 mm, respectively. Microstructural analysis showed that the bulk metallic glass composite contained submicron WC particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix. Incorporation of WC into consolidated composite compacts resulted in a significant increase in hardness.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 46 (12), 2963-2967, 2005

  The Japan Institute of Metals and Materials

Keywords

• mechanical alloying
• bulk metallic glass composite
• supercooled liquid region
• Ti-based alloys
• nanoparticles

Details

• CRID: 1390001204250490240
• NII Article ID: 130004452738
• NII Article ID: 10017150555
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.46.2963
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 7758117
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7758117
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/46/12/46_12_2963/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed