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Wetting Characteristics of Liquid Fe-19%Cr-10%Ni Alloys on Dense Alumina Substrates

Authors
Shin, MinsooLee, JoonhoPark, Joo-Hyun
Issue Date
2008
Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
Keywords
alumina; Fe-19%Cr-10%Ni alloy; oxide formation; sessile drop method; skull; wetting
Citation
ISIJ INTERNATIONAL, v.48, no.12, pp 1665 - 1669
Pages
5
Indexed
SCIE
SCOPUS
Journal Title
ISIJ INTERNATIONAL
Volume
48
Number
12
Start Page
1665
End Page
1669
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/125563
DOI
10.2355/isijinternational.48.1665
ISSN
0915-1559
1347-5460
Abstract
Using the sessile drop technique, the contact angle between a liquid Fe-19%Cr-10%Ni drop and a dense alumina substrate was measured under H-2 as well as CO2-H-2 atmospheres in the temperature range of 1 753 to 1 823 K. The measurements were carried out both in the static mode and the dynamic mode. The static measurements in hydrogen showed that the contact angle decreased from 135 to 107 degrees by increasing temperature from 1 753 to 1 823 K. In the dynamic mode, gas mixtures of different oxygen partial pressures were imposed on the system. At 1 753 K, the contact angle was decreased under the condition of oxide formation, whereas the contact angle was not changed under the condition of no oxide formation. At 1 823 K, the contact angle did not change regardless of the oxide formation. The time required for the surface oxide layer to fully cover the liquid metal drop was decreased by increasing the temperature.
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