Preparation of Bulk Glassy Mg65Y10Cu15Ag5Pd5 Alloy of 12 mm in Diameter by Water Quenching
Open Access
- 1 January 2001
- journal article
- Published by Japan Institute of Metals in MATERIALS TRANSACTIONS
- Vol. 42 (3) , 543-545
- https://doi.org/10.2320/matertrans.42.543
Abstract
Cylindrical glassy alloys with diameters up to 12 mm were prepared for a Mg65Y10Cu15Ag5Pd5 with a high reduced glass transition temperature (Tg⁄Tm) of 0.62 by water quenching the molten alloy in the iron tube. Neither cavities nor voids are seen over the whole inner region and no contrast revealing a crystalline phase is seen over the transverse cross section. The glass transition temperature (Tg), crystallization temperature (Tx), the temperature interval of the supercooled liquid region (ΔTx=Tx−Tg) and the melting temperature (Tm) are measured to be 436, 468, 32 and 706 K, respectively, for the Mg65Y10Cu15Ag5Pd5 alloy with a diameter of 12 mm. The simultaneous addition of Ag and Pd to Mg–Y–Cu system causes an increase in the Tg⁄Tm, leading to an increase in the glass forming ability. It is thus concluded that the application of the water quenching process with the iron tube to the Mg-based glassy alloys is useful for the formation of the bulk glassy alloys.Keywords
This publication has 11 references indexed in Scilit:
- Glass-forming ability of alloysPublished by Elsevier ,2003
- Easy glass formation in magnesium-based Mg-Ni-Nd alloysJournal of Materials Science, 1996
- Preparation of Bulk Glassy Pd40Ni10Cu30P20 Alloy of 40 mm in Diameter by Water QuenchingMaterials Transactions, JIM, 1996
- Mechanical strength and thermal stability of Ti-based amorphous alloys with large glass-forming abilityMaterials Science and Engineering: A, 1994
- Mg–Cu–Y Bulk Amorphous Alloys with High Tensile Strength Produced by a High-Pressure Die Casting MethodMaterials Transactions, JIM, 1992
- Mg–Cu–Y Amorphous Alloys with High Mechanical Strengths Produced by a Metallic Mold Casting MethodMaterials Transactions, JIM, 1991
- High Mechanical Strengths of Mg–Ni–Y and Mg–Cu–Y Amorphous Alloys with Significant Supercooled Liquid RegionMaterials Transactions, JIM, 1990
- Zr–Al–Ni Amorphous Alloys with High Glass Transition Temperature and Significant Supercooled Liquid RegionMaterials Transactions, JIM, 1990
- Al–La–Cu Amorphous Alloys with a Wide Supercooled Liquid RegionMaterials Transactions, JIM, 1990
- New Amorphous Mg-Ce-Ni Alloys with High Strength and Good DuctilityJapanese Journal of Applied Physics, 1988