Crystallization and Glass Forming Ability of Supercooled Pd-Cu-Ni-P Melt
-
- Nishiyama Nobuyuki
- Inoue Superliquid Glass Project, ERATO, Japan Science and Technology Corporation
-
- Matsushita Mitsuhide
- Inoue Superliquid Glass Project, ERATO, Japan Science and Technology Corporation
-
- Inoue Akihisa
- Inoue Superliquid Glass Project, ERATO, Japan Science and Technology Corporation Institute for Materials Research, Tohoku University
この論文をさがす
抄録
The thermal stability, GFA and crystallization behavior of a highly purified Pd40Cu30Ni10P20 supercooled liquid was examined. Under continuous cooling, the critical cooling rate for glass formation for the highly purified alloy is the same as that (0.100 K/s) for the fluxed ordinary alloy, though the magnitude of supercooling is enhanced by about 80 K upon by the purification treatment. The enhancement is presumed to result from the elimination or decrease of the quenched-in nuclei. The Time-Temperature-Transformation (TTT) diagram was constructed experimentally under isothermal annealing of the supercooled melt. The nose point in the TTT diagram is located at 683 K and 80 s. By utilizing the high thermal stability of the supercooled liquid, in-situ TEM observation was successfully carried out. In the isothermal annealing at 683 K, crystalline particle with a diameter of about 15 nm abruptly precipitated from the molten particle with a diameter of 40 nm and no significant grain growth was observed during further annealing. The incubation time was measured to be 3180 s. This value is much longer than that of the sample obtained by the HV/HT-DSC measurement. The difference between the two incubation times indicates that the nucleation is the event dominated by statistical probability.
収録刊行物
-
- MATERIALS TRANSACTIONS
-
MATERIALS TRANSACTIONS 42 (6), 1068-1073, 2001
公益社団法人 日本金属学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204248356736
-
- NII論文ID
- 130004451530
- 10006549977
-
- NII書誌ID
- AA1151294X
-
- COI
- 1:CAS:528:DC%2BD3MXlvVGmsrs%3D
-
- ISSN
- 13475320
- 13459678
-
- NDL書誌ID
- 5824165
-
- 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