Effect of austenite grain size on the transformation kinetics of upper and lower bainite in a low-alloy steel

Seok Jae Lee; June Soo Park; Young Kook Lee

doi:10.1016/j.scriptamat.2008.02.036

Effect of austenite grain size on the transformation kinetics of upper and lower bainite in a low-alloy steel

Seok Jae Lee, June Soo Park, Young Kook Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

99 Citations (Scopus)

Abstract

The effect of austenite grain size on the continuous cooling transformation kinetics of upper and lower bainite in a low-alloy steel has been investigated using a dilatometer. The transition temperature between upper and lower bainite is almost constant (430 °C) irrespective of the grain size. The transformation rate of upper bainite increased with a decrease in grain size. The instantaneous transformation rate of lower bainite at each volume fraction is not related to the austenite grain size.

Original language	English
Pages (from-to)	87-90
Number of pages	4
Journal	Scripta Materialia
Volume	59
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2008.02.036
Publication status	Published - 2008 Jul

Bibliographical note

Funding Information:
This research was supported by the National Core Research Center (NCRC) program from MOST and KOSEF (No. R15-2006-022-01002-0) and by Components and Materials Technology Development program from MOCIE.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2008.02.036

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abstract = "The effect of austenite grain size on the continuous cooling transformation kinetics of upper and lower bainite in a low-alloy steel has been investigated using a dilatometer. The transition temperature between upper and lower bainite is almost constant (430 °C) irrespective of the grain size. The transformation rate of upper bainite increased with a decrease in grain size. The instantaneous transformation rate of lower bainite at each volume fraction is not related to the austenite grain size.",

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note = "Funding Information: This research was supported by the National Core Research Center (NCRC) program from MOST and KOSEF (No. R15-2006-022-01002-0) and by Components and Materials Technology Development program from MOCIE. ",

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AU - Park, June Soo

AU - Lee, Young Kook

N1 - Funding Information: This research was supported by the National Core Research Center (NCRC) program from MOST and KOSEF (No. R15-2006-022-01002-0) and by Components and Materials Technology Development program from MOCIE.

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AB - The effect of austenite grain size on the continuous cooling transformation kinetics of upper and lower bainite in a low-alloy steel has been investigated using a dilatometer. The transition temperature between upper and lower bainite is almost constant (430 °C) irrespective of the grain size. The transformation rate of upper bainite increased with a decrease in grain size. The instantaneous transformation rate of lower bainite at each volume fraction is not related to the austenite grain size.

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Effect of austenite grain size on the transformation kinetics of upper and lower bainite in a low-alloy steel

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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