Fe-B-Si-Nb Bulk Metallic Glasses with High Strength above 4000 MPa and Distinct Plastic Elongation

• Amiya Kenji

  R&D Institute Metals and Composites for Future Industries

• Urata Akiri

  R&D Institute Metals and Composites for Future Industries

• Nishiyama Nobuyuki

  R&D Institute Metals and Composites for Future Industries

• Inoue Akihisa

  Institute for Materials Research, Tohoku University

抄録

The glass-forming ability and mechanical properties of Fe-B-Si-Nb glassy alloys have been investigated. The Fe₇₂B₂₀Si₄Nb₄ glassy alloy was prepared in a cylindrical form with a diameter of 2 mm. Young's modulus, compressive fracture strength and plastic elongation of the bulk metallic glass were 200 GPa, 4200 MPa and 1.9%, respectively. Many shear bands were observed along the shear plane, which was declined by about 43 degrees to the direction of applied load, and the fracture occurred along the shear plane. The local-ordered regions were recognized in the high-resolution TEM image of the Fe₇₂B₂₀Si₄Nb₄ bulk metallic glass with a diameter of 2 mm. The good mechanical properties are attributed to the suppression effect of the local-ordered regions on the propagation of shear bands.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 45 (4), 1214-1218, 2004

  公益社団法人 日本金属学会

キーワード

• bulk glassy alloy
• iron base alloy
• high glass-forming ability
• high-resolution image
• local-order region

詳細情報

• CRID: 1390001204250322176
• NII論文ID: 130004452448
• NII論文ID: 10012906032
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.45.1214
• COI: 1:CAS:528:DC%2BD2cXksVyhu7o%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 6927359
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6927359
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/45/4/45_4_1214/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可