Open Access System for Information Sharing

Login Library

 

Article
Cited 19 time in webofscience Cited 28 time in scopus
Metadata Downloads

Analysis and prevention of microcracking phenomenon occurring during strip casting of an AISI 304 stainless steel SCIE SCOPUS

Title
Analysis and prevention of microcracking phenomenon occurring during strip casting of an AISI 304 stainless steel
Authors
Ha, MJChoi, JJeong, SMoon, HLee, SKang, T
Date Issued
2002-05
Publisher
MINERALS METALS MATERIALS SOC
Abstract
This study was concerned with the effects of microstructural parameters on the microcracking phenomenon occurring during strip casting of an AISI 304 stainless steel. Detailed microstructural analyses of the microcracked regions showed that microcracks were formed mainly along tortoise-shell-shaped depressions and that their number and size were considerably reduced when strip casting was done right after a shot-blasting or pickling treatment of the casting roll surface. This microcracking phenomenon was closely related to the formation of a black oxide layer, which was mainly composed of manganese-rich oxides, on the roll surface. The black oxide layer acted as a barrier of thermal transfer between the rolls and melt, led to an increased gas gap and inhomogeneous solidification of cast strips, and, thus, played a role in forming both tortoise-shell-shaped depressions and microcracks on the strip surface. The installation of brush rolls behind the casting rolls was suggested as a method to prevent microcracks, because the brush rolls could continuously scrape off the black oxide layer affixed on the roll surface during strip casting.
URI
https://oasis.postech.ac.kr/handle/2014.oak/11468
DOI
10.1007/s11661-002-0071-z
ISSN
1073-5623
Article Type
Article
Citation
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, vol. 33, no. 5, page. 1487 - 1497, 2002-05
Files in This Item:

qr_code

  • mendeley

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

Related Researcher

Researcher

이성학LEE, SUNG HAK
Dept of Materials Science & Enginrg
Read more

Views & Downloads

Browse