Undercooling solidification behavior and bulk amorphous formation of la 55Al 25Cu 10Ni 5Co 5 alloys with SiC whisker addition

Shuji Azumo, Katsuhisa Nagayama

研究成果: Article

2 引用 (Scopus)

抄録

It is reported that La-Al-Transition Metal alloys have high undercooled melt formation and high bulk amorphous formation ability by using rapid solidification process. We have examined the undercooling solidification and remarkable nucleation control behavior with adding SiC whisker by using containerless process. In this study, we investigated the undercooling, nucleation behavior and bulk amorphous formation for La 55Al 23Cu 10Ni 5Co 5 samples and samples with SiC whisker addition which are levitated and solidified by using the new gas jet flow and high cooling type electromagnetic levitation system. Therefore, the nucleation was controlled and the high undercooling degree, ΔT(= 0.22-0.28T m), was obtained with increasing SiC whisker addition. In addition, the bulk amorphous sample, φ7 mm sphere, was obtained at the cooling rate of levitating melt and solidification, about 100 K/s, for sample with 0.2% or more SiC whisker addition.

元の言語English
ページ(範囲)399-401
ページ数3
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
69
発行部数4
DOI
出版物ステータスPublished - 2005 4

Fingerprint

Undercooling
supercooling
solidification
Solidification
Nucleation
nucleation
Transition metal alloys
Cooling
Rapid solidification
cooling
magnetic suspension
rapid solidification
gas jets
jet flow
Gases
transition metals

ASJC Scopus subject areas

  • Metals and Alloys

これを引用

@article{3cf387523a454d52bfdb8e4673c806d2,
title = "Undercooling solidification behavior and bulk amorphous formation of la 55Al 25Cu 10Ni 5Co 5 alloys with SiC whisker addition",
abstract = "It is reported that La-Al-Transition Metal alloys have high undercooled melt formation and high bulk amorphous formation ability by using rapid solidification process. We have examined the undercooling solidification and remarkable nucleation control behavior with adding SiC whisker by using containerless process. In this study, we investigated the undercooling, nucleation behavior and bulk amorphous formation for La 55Al 23Cu 10Ni 5Co 5 samples and samples with SiC whisker addition which are levitated and solidified by using the new gas jet flow and high cooling type electromagnetic levitation system. Therefore, the nucleation was controlled and the high undercooling degree, ΔT(= 0.22-0.28T m), was obtained with increasing SiC whisker addition. In addition, the bulk amorphous sample, φ7 mm sphere, was obtained at the cooling rate of levitating melt and solidification, about 100 K/s, for sample with 0.2{\%} or more SiC whisker addition.",
keywords = "Bulk amorphous, Containerless process, Gas jet flow type levitation apparatus, High undercooling degree, La Al Cu Ni Co alloy",
author = "Shuji Azumo and Katsuhisa Nagayama",
year = "2005",
month = "4",
doi = "10.2320/jinstmet.69.399",
language = "English",
volume = "69",
pages = "399--401",
journal = "Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals",
issn = "0021-4876",
publisher = "Japan Institute of Metals (JIM)",
number = "4",

}

TY - JOUR

T1 - Undercooling solidification behavior and bulk amorphous formation of la 55Al 25Cu 10Ni 5Co 5 alloys with SiC whisker addition

AU - Azumo, Shuji

AU - Nagayama, Katsuhisa

PY - 2005/4

Y1 - 2005/4

N2 - It is reported that La-Al-Transition Metal alloys have high undercooled melt formation and high bulk amorphous formation ability by using rapid solidification process. We have examined the undercooling solidification and remarkable nucleation control behavior with adding SiC whisker by using containerless process. In this study, we investigated the undercooling, nucleation behavior and bulk amorphous formation for La 55Al 23Cu 10Ni 5Co 5 samples and samples with SiC whisker addition which are levitated and solidified by using the new gas jet flow and high cooling type electromagnetic levitation system. Therefore, the nucleation was controlled and the high undercooling degree, ΔT(= 0.22-0.28T m), was obtained with increasing SiC whisker addition. In addition, the bulk amorphous sample, φ7 mm sphere, was obtained at the cooling rate of levitating melt and solidification, about 100 K/s, for sample with 0.2% or more SiC whisker addition.

AB - It is reported that La-Al-Transition Metal alloys have high undercooled melt formation and high bulk amorphous formation ability by using rapid solidification process. We have examined the undercooling solidification and remarkable nucleation control behavior with adding SiC whisker by using containerless process. In this study, we investigated the undercooling, nucleation behavior and bulk amorphous formation for La 55Al 23Cu 10Ni 5Co 5 samples and samples with SiC whisker addition which are levitated and solidified by using the new gas jet flow and high cooling type electromagnetic levitation system. Therefore, the nucleation was controlled and the high undercooling degree, ΔT(= 0.22-0.28T m), was obtained with increasing SiC whisker addition. In addition, the bulk amorphous sample, φ7 mm sphere, was obtained at the cooling rate of levitating melt and solidification, about 100 K/s, for sample with 0.2% or more SiC whisker addition.

KW - Bulk amorphous

KW - Containerless process

KW - Gas jet flow type levitation apparatus

KW - High undercooling degree

KW - La Al Cu Ni Co alloy

UR - http://www.scopus.com/inward/record.url?scp=20844438161&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=20844438161&partnerID=8YFLogxK

U2 - 10.2320/jinstmet.69.399

DO - 10.2320/jinstmet.69.399

M3 - Article

AN - SCOPUS:20844438161

VL - 69

SP - 399

EP - 401

JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

SN - 0021-4876

IS - 4

ER -