NDLI: Solidification Atmosphere and Glass-Forming Ability of Engineering Important Fe- and Zr-Based Bulk Glassy Alloys

Content Provider	Springer Nature Link
Author	Inoue, A. Kong, F. L. Al Marzouki, F.
Copyright Year	2015
Abstract	It is important to clarify the best solidification condition for the formation of bulk glassy alloys in Fe- and Zr-based alloy systems with engineering values. The effectiveness of atmosphere during injection casting changes in the order of O$_{2}$ > Air > N$_{2}$ > Ar > He for Fe$_{76}$Si$_{9}$B$_{10}$P$_{5}$ bulk glassy alloy and 10$^{5}$ Pa He > 10$^{5}$ Pa Ar > 10$^{3}$ Pa Ar > vacuum for Zr$_{65}$Al$_{7.5}$Ni$_{10}$Cu$_{17.5−x}$Pd$_{x}$ (x = 0–17.5 %) bulk glassy alloys. The effectiveness of oxygen atmosphere is due to the suppression of crystal nucleation rate caused by the increase in surface tension of liquid by the dissolution of oxygen in case of Fe-based alloy. In case of Zr-based bulk glassy alloys, the He atmosphere is effective due to the maintenance of cleanness of alloy liquid as well as the increase in the cooling rate. The opposite tendency of the effectiveness for helium atmosphere in the same injection casting is important for further development of the production techniques for large-scale Fe- and Zr-based bulk glassy alloys.
Starting Page	1131
Ending Page	1136
Page Count	6
File Format	PDF
ISSN	09722815
Journal	Transactions of the Indian Institute of Metals
Volume Number	68
Issue Number	6
e-ISSN	09751645
Language	English
Publisher	Springer India
Publisher Date	2015-09-19
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Solidification condition Copper mold casting Glass-forming ability Engineering bulk glass Helium Oxygen Metallic Materials Materials Science Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys

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