Cu-Based Bulk Glassy Alloys with Good Mechanical Properties in Cu-Zr-Hf-Ti System
-
- Inoue Akihisa
- Institute for Materials Research, Tohoku University Inoue Superliquid Glass Project, Exploratory Research for Advanced Technology, Japan Science and Technology Corporation
-
- Zhang Wei
- Inoue Superliquid Glass Project, Exploratory Research for Advanced Technology, Japan Science and Technology Corporation
-
- Zhang Tao
- Institute for Materials Research, Tohoku University
-
- Kurosaka Kei
- Institute for Materials Research, Tohoku University
この論文をさがす
抄録
High-strength Cu-based bulk glassy alloys were synthesized in Cu–Zr–Ti and Cu–Hf–Ti ternary and Cu–Zr–Hf–Ti quaternary systems by copper mold casting. The critical diameter was 4 mm for the Cu60Zr30Ti10 and Cu60Hf25Ti15 ternary alloys and the Cu60Zr20Hf10Ti10 and Cu60Zr10Hf15Ti15 quaternary alloys. As the substitution amount of Zr or Hf by Ti in Cu60Zr40 and Cu60Hf40 alloys increases, the glass transition temperature (Tg), crystallization temperature (Tx) and temperature interval of supercooled liquid region ΔTx(=Tx−Tg) decrease, while the liquidus temperature (Tl) has a minimum of 1127 K around 20%Ti, resulting in a maximum Tg⁄Tl of 0.63 in the vicinity of 20%Ti. The high glass-forming ability was obtained at the compositions with high Tg⁄Tl. The bulk glassy alloys exhibit high fracture strength of 2040–2190 MPa and plastic elongations of 0.3 to 1.9%. The finding of the Cu-based bulk glassy alloys with high Tg⁄Tl above 0.60, high fracture strength above 2000 MPa and distinct plastic elongation is encouraging for the subsequent development as a new type of bulk glassy alloys which can be used for structural materials.
収録刊行物
-
- MATERIALS TRANSACTIONS
-
MATERIALS TRANSACTIONS 42 (8), 1805-1812, 2001
公益社団法人 日本金属学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001204248511744
-
- NII論文ID
- 10007260871
-
- NII書誌ID
- AA1151294X
-
- COI
- 1:CAS:528:DC%2BD3MXnt1Clu7s%3D
-
- ISSN
- 13475320
- 13459678
-
- NDL書誌ID
- 5890734
-
- 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