NDLI: Influences of carbon and silicon on blister formation in scale surface during high temperature oxidation of carbon steels

Content Provider	Springer Nature Link
Author	Kim, Deuk Jung Lee, Jae Sang Koo, Yang Mo
Copyright Year	2017
Abstract	The in-situ blistering phenomena of the scale ‘surface’ was investigated on three carbon steels with respect to carbon and silicon concentrations, such as 0.05 wt%C, 0.2 wt%C, and 0.2 wt%C-0.2 wt%Si. The oxidation and blistering kinetics and blister area fraction during high temperature oxidation were analyzed. The average thickness of the surface scale by oxidation during isothermal holding from 800 to 1200 °C in dry air was observed to decrease when the amount of carbon increased and/or when Si was inserted additionally. Thus, the blistering behavior depended primarily on a change in oxidation temperature (T $_{ ox }$) as well as amounts of carbon and silicon in the matrix. It is also revealed that such blister formation would be triggered by growth of internal stress and active generations of CO and/or CO$_{2}$ gases at the interface between the scale and matrix since carbon would result in an increase in the blister formation by generating CO and/or CO$_{2}$ gas. In addition, silicon might play an important role in preventing the blister formation at T $_{ ox }$ below 900 °C by reducing the thickness of the surface scale whilst silicon might enhance the blister formation by means of the appreciable micro-void formation in the scale layer at T $_{ ox }$ higher 900 °C.
Starting Page	715
Ending Page	719
Page Count	5
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	23
Issue Number	4
e-ISSN	20054149
Language	English
Publisher	The Korean Institute of Metals and Materials
Publisher Date	2017-07-12
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	steel oxidation blistering defects surface Metallic Materials Operating Procedures, Materials Treatment Magnetism, Magnetic Materials Engineering Thermodynamics, Heat and Mass Transfer Characterization and Evaluation of Materials Continuum Mechanics and Mechanics of Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Condensed Matter Physics

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