Open Access System for Information Sharing

Login Library

 

ARTICLE
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Finite element and experimental analyses of closure and contact bonding of pores during hot rolling of steel

Title
Finite element and experimental analyses of closure and contact bonding of pores during hot rolling of steel
Authors
Joo, S.-H., Jung, J., Chun, M.S., Moon, C.H., Lee, S., Kim, H.S김형섭
Date Issued
Aug-2014
Publisher
Springer
Abstract
The closure and contact bonding behavior of internal pores in steel slabs during hot rolling was studied using experiments and the finite element method (FEM). Effects of pore size and shape were investigated, and three different cases of pore closure results were observed: no closure, partial closure, and full closure. The FEM results well reproduced various closure events. Bonding strengths of unsuccessfully closed pores, measured by tensile tests, showed critical effects. Also, there was a difference in bonding strengths of several fully closed pores. Fracture surfaces showed that welded regions could be divided into three (not, partially, and perfectly) welded regions. The pressure-time curves obtained from the FEM results indicate that pore surface contact time and deformed surface length are important parameters in pore welding. Pore size, pore shape, time of pressure contact, and deformed surface length should be considered to completely eliminate pores in final products.
Keywords
NODULAR CAST-IRON; VOID CLOSURE; ALLOY; EFFICIENCY; MICROSTRUCTURE; PREDICTION; DEFORMATION; DEFECTS; LARGE FORGINGS; MECHANICAL-PROPERTIES
URI
http://oasis.postech.ac.kr/handle/2014.oak/13083
DOI
10.1007/S11661-014-2319-9
ISSN
1073-5623
Article Type
ARTICLE
Files in This Item:

qr_code

  • mendeley

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

Views & Downloads

Browse