Effect of Nanocrystal Distribution on Mechanical Properties of Ti-Based Metallic Glasses

• Ito Hirofumi

  Department of Materials Science, Graduate School of Engineering, Tohoku University

• Yamamoto Tokujiro

  Institute for Materials Research, Tohoku University

• Hasegawa Masashi

  Institute for Materials Research, Tohoku University

• Inoue Akihisa

  Institute for Materials Research, Tohoku University

抄録

Ti₄₅Zr₅Cu₄₅Ni₅ metallic glasses in which Ta and Al were substituted for Cu were evaluated in terms of mechanical properties, thermal properties and microstructures in order to determine the factors contributing to an improvement in plasticity. Samples are examined by compression testing, differential scanning calorimetry, X-ray diffractometry and electron microscopy. Mold-cast Ti₄₅Zr₅Cu₄₄Ni₅Ta₁ bulk specimens were confirmed to consist of a metallic glass matrix and nanocrystals homogeneously dispersed at high density within the matrix. The yield stresses of both Ti₄₅Zr₅Cu_45−xNi₅Ta_x and Ti₄₅Zr₅Cu_45−xNi₅Al_x are approximately 1800 MPa, and the maximum plastic strain of 3.1% was obtained for the Ti₄₅Zr₅Cu₄₄Ni₅Ta₁ specimen. The Ti₄₅Zr₅Cu_45−xNi₅Al_x bulk specimens exhibited poorer plasticity due to the formation of larger crystalline grains.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 48 (6), 1288-1291, 2007

  公益社団法人 日本金属学会

キーワード

• metallic glasses
• mechanical properties
• microstructure

詳細情報

• CRID: 1390001204251139968
• NII論文ID: 10019486284
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mf200616
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 8742194
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8742194
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/48/6/48_MF200616/_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