Microstructural effects of electromagnetic stirring strength and casting speed in continuous casting of al alloy

Dock Young Lee, Ki Bae Kim, Ho In Lee, Do Hyang Kim

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Semi-solid forming usually requires feed stock material in form of cylindrical billets with a uniform, globular and fine grain microstructure. These billets are commonly being produced by continuous casting involving agitation of the solidifying melt. The paper will present the development of a horizontal continuous casting machine using circumferential electromagnetic stirring to generate melt flow and shear rate in the continuous casting mould. The machine has been used to study the influence of various process parameters such as electromagnetic stirring strength and casting speed in the production of Al billet with a diameter of 76mm. In order to establish the quantitative relationship between microstructure and the process parameters, the morphology and primary crystal size of billet were observed according to the casting speed and electromagnetic stirring strength. A depth and distance of surface defect on the billet was decreased with increasing a casting speed and a very good smooth surface without any surface defect appeared on the billet produced at a casting speed of 600mm/min. A thickness of the solidifying shell was decreased with increasing the casting speed and the maximum casting speed without a break-out was 600mm/min in horizontal continuous caster designed in this study. Both the size and the aspect ratio of primary crystal were decreased with increasing the casting speed and electromagnetic stirring strength in the range of this study.

Original languageEnglish
Pages (from-to)321-324
Number of pages4
JournalMaterials Science Forum
Volume449-452
Issue numberI
Publication statusPublished - 2004 Jul 27
EventDesigning, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials - Jeju Island, Korea, Republic of
Duration: 2003 Nov 52003 Nov 8

Fingerprint

Continuous casting
stirring
Casting
billets
electromagnetism
Surface defects
surface defects
Crystals
Microstructure
Shear deformation
Aspect ratio
microstructure
agitation
Flow rate
crystals
aspect ratio
flow velocity
shear

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{8c2d8b2e66cf4773aced25381c8af276,
title = "Microstructural effects of electromagnetic stirring strength and casting speed in continuous casting of al alloy",
abstract = "Semi-solid forming usually requires feed stock material in form of cylindrical billets with a uniform, globular and fine grain microstructure. These billets are commonly being produced by continuous casting involving agitation of the solidifying melt. The paper will present the development of a horizontal continuous casting machine using circumferential electromagnetic stirring to generate melt flow and shear rate in the continuous casting mould. The machine has been used to study the influence of various process parameters such as electromagnetic stirring strength and casting speed in the production of Al billet with a diameter of 76mm. In order to establish the quantitative relationship between microstructure and the process parameters, the morphology and primary crystal size of billet were observed according to the casting speed and electromagnetic stirring strength. A depth and distance of surface defect on the billet was decreased with increasing a casting speed and a very good smooth surface without any surface defect appeared on the billet produced at a casting speed of 600mm/min. A thickness of the solidifying shell was decreased with increasing the casting speed and the maximum casting speed without a break-out was 600mm/min in horizontal continuous caster designed in this study. Both the size and the aspect ratio of primary crystal were decreased with increasing the casting speed and electromagnetic stirring strength in the range of this study.",
author = "Lee, {Dock Young} and Kim, {Ki Bae} and Lee, {Ho In} and Kim, {Do Hyang}",
year = "2004",
month = "7",
day = "27",
language = "English",
volume = "449-452",
pages = "321--324",
journal = "Materials Science Forum",
issn = "0255-5476",
publisher = "Trans Tech Publications",
number = "I",

}

Microstructural effects of electromagnetic stirring strength and casting speed in continuous casting of al alloy. / Lee, Dock Young; Kim, Ki Bae; Lee, Ho In; Kim, Do Hyang.

In: Materials Science Forum, Vol. 449-452, No. I, 27.07.2004, p. 321-324.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Microstructural effects of electromagnetic stirring strength and casting speed in continuous casting of al alloy

AU - Lee, Dock Young

AU - Kim, Ki Bae

AU - Lee, Ho In

AU - Kim, Do Hyang

PY - 2004/7/27

Y1 - 2004/7/27

N2 - Semi-solid forming usually requires feed stock material in form of cylindrical billets with a uniform, globular and fine grain microstructure. These billets are commonly being produced by continuous casting involving agitation of the solidifying melt. The paper will present the development of a horizontal continuous casting machine using circumferential electromagnetic stirring to generate melt flow and shear rate in the continuous casting mould. The machine has been used to study the influence of various process parameters such as electromagnetic stirring strength and casting speed in the production of Al billet with a diameter of 76mm. In order to establish the quantitative relationship between microstructure and the process parameters, the morphology and primary crystal size of billet were observed according to the casting speed and electromagnetic stirring strength. A depth and distance of surface defect on the billet was decreased with increasing a casting speed and a very good smooth surface without any surface defect appeared on the billet produced at a casting speed of 600mm/min. A thickness of the solidifying shell was decreased with increasing the casting speed and the maximum casting speed without a break-out was 600mm/min in horizontal continuous caster designed in this study. Both the size and the aspect ratio of primary crystal were decreased with increasing the casting speed and electromagnetic stirring strength in the range of this study.

AB - Semi-solid forming usually requires feed stock material in form of cylindrical billets with a uniform, globular and fine grain microstructure. These billets are commonly being produced by continuous casting involving agitation of the solidifying melt. The paper will present the development of a horizontal continuous casting machine using circumferential electromagnetic stirring to generate melt flow and shear rate in the continuous casting mould. The machine has been used to study the influence of various process parameters such as electromagnetic stirring strength and casting speed in the production of Al billet with a diameter of 76mm. In order to establish the quantitative relationship between microstructure and the process parameters, the morphology and primary crystal size of billet were observed according to the casting speed and electromagnetic stirring strength. A depth and distance of surface defect on the billet was decreased with increasing a casting speed and a very good smooth surface without any surface defect appeared on the billet produced at a casting speed of 600mm/min. A thickness of the solidifying shell was decreased with increasing the casting speed and the maximum casting speed without a break-out was 600mm/min in horizontal continuous caster designed in this study. Both the size and the aspect ratio of primary crystal were decreased with increasing the casting speed and electromagnetic stirring strength in the range of this study.

UR - http://www.scopus.com/inward/record.url?scp=3142731517&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3142731517&partnerID=8YFLogxK

M3 - Conference article

VL - 449-452

SP - 321

EP - 324

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

IS - I

ER -