77 0

A Thermodynamic Study on the Inclusion Formation in Ferritic Stainless Steel Melt

Title
A Thermodynamic Study on the Inclusion Formation in Ferritic Stainless Steel Melt
Author
박종진
Keywords
AOD slag; Inclusion; MgO·Al2O3 spinelO3 spinel; Secondary deoxidation; Stainless steel
Issue Date
2004-07
Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
Citation
ISIJ INTERNATIONAL, v.44, No.7, Page. 1134-1139
Abstract
A type 430 stainless steel melt containing different Al levels was equilibrated with an ACID type slag saturated with Al2O3 or MgO to clarify the formation mechanism of slag-type inclusions containing MgO (.) Al2O3 spinel. The Al-O deoxidation equilibrium in the stainless steel melt was examined as a function of melt temperature to check the validity of available thermodynamic data, and to estimate the secondary deoxidation by Al picked up from the ladle slag. During the temperature drop from AOD to tundish, a small amount of entrapped AOD slag particles in molten steel can easily change their composition to a level where the (MgOAl2O3)-Al-. spinel can crystallize. The refractory material, MgO or Al2O3 for a ladle, is one of critical factors to affect the Al level in the melt, and hence the formation of (MgOAl2O3)-Al-. spinel inclusions in the final products.
URI
https://www.jstage.jst.go.jp/article/isijinternational1989/44/7/44_7_1134/_articlehttps://repository.hanyang.ac.kr/handle/20.500.11754/151350
ISSN
0915-1559
DOI
10.2355/isijinternational.44.1134
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE