Ti-Based Bulk Metallic Glasses with High Specific Strength

• Park Jin Man

  Center for Non-crystalline Materials, Department of Metallurgical Engineering, Yonsei University

• Kim Yu Chan

  Division of Materials Science and Engineering, Korea Institute of Science and Technology (KIST)

• Kim Won Tae

  Applied Science Division, Chongju University

• Kim Do Hyang

  Center for Non-crystalline Materials, Department of Metallurgical Engineering, Yonsei University

抄録

The glass forming ability of melt-spun Ti_65-xZr_xBe₁₈Cu₉Ni₈ (x = 0, 5, 10, 15) amorphous alloys have been investigated by differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). With increasing Zr contents, x from 0 to 15, ΔT_x (= T_x − T_g), T_rg (= T_g/T_l) and γ (= T_x/(T_g + T_l)), where T_g = glass transition temperature, T_x = crystallization temperature and T_l = liquidus temperature, gradually increase from 35 to 40 K, from 0.558 to 0.621, and from 0.378 to 0.406, respectively. The Ti_65-xZr_xBe₁₈Cu₉Ni₈ (x = 10, 15) BMG cylinders with the diameter up to 6 mm are successfully fabricated by the injection casting method, exhibiting high Vickers hardness (681-700) and yield strength (2.0-2.1 GPa). Ti-Zr-Be-Cu-Ni alloys with >50 at% Ti content have higher specific strength than any other Ti-based BMGs reported so far.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 45 (2), 595-598, 2004

  公益社団法人 日本金属学会

キーワード

• bulk metallic glass
• glass forming ability
• specific strength
• titanium-zirconium-beryllium-copper-nickel

詳細情報

• CRID: 1390282679226833280
• NII論文ID: 10012644166
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.45.595
• COI: 1:CAS:528:DC%2BD2cXjt1Oqurc%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 6866082
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6866082
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/45/2/45_2_595/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可