Continuous cooling transformation temperatures and microstructures of niobium bearing microalloyed steels

Young Kook Lee; Jin Myung Hong; Chong Sool Choi; Jae Kon Lee

doi:10.4028/0-87849-960-1.65

Continuous cooling transformation temperatures and microstructures of niobium bearing microalloyed steels

Young Kook Lee, Jin Myung Hong, Chong Sool Choi, Jae Kon Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

10 Citations (Scopus)

Abstract

Effects of niobium content and cooling rate on ferrite and bainite start temperatures (Ar₃, Bs) and microstructural features have been studied in niobium bearing ultralow carbon microalloyed steels. The Ar₃ and Bs temperatures decrease as niobium content or cooling rate is increased. The dependence of Ar₃ on cooling rate is greater than that of Bs in all niobium contents. The bainitic ferrite laths become longer and narrower with increasing niobium content and cooling rate, and niobium also shows a tendency to decrease polygonal ferrite grain size.

Original language	English
Pages (from-to)	65-68
Number of pages	4
Journal	Materials Science Forum
Volume	475-479
Issue number	I
DOIs	https://doi.org/10.4028/0-87849-960-1.65
Publication status	Published - 2005
Event	PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: 2004 Nov 2 → 2004 Nov 5

All Science Journal Classification (ASJC) codes

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

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10.4028/0-87849-960-1.65

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title = "Continuous cooling transformation temperatures and microstructures of niobium bearing microalloyed steels",

abstract = "Effects of niobium content and cooling rate on ferrite and bainite start temperatures (Ar3, Bs) and microstructural features have been studied in niobium bearing ultralow carbon microalloyed steels. The Ar3 and Bs temperatures decrease as niobium content or cooling rate is increased. The dependence of Ar3 on cooling rate is greater than that of Bs in all niobium contents. The bainitic ferrite laths become longer and narrower with increasing niobium content and cooling rate, and niobium also shows a tendency to decrease polygonal ferrite grain size.",

author = "Lee, {Young Kook} and Hong, {Jin Myung} and Choi, {Chong Sool} and Lee, {Jae Kon}",

year = "2005",

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volume = "475-479",

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journal = "Materials Science Forum",

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TY - JOUR

T1 - Continuous cooling transformation temperatures and microstructures of niobium bearing microalloyed steels

AU - Lee, Young Kook

AU - Hong, Jin Myung

AU - Choi, Chong Sool

AU - Lee, Jae Kon

PY - 2005

Y1 - 2005

N2 - Effects of niobium content and cooling rate on ferrite and bainite start temperatures (Ar3, Bs) and microstructural features have been studied in niobium bearing ultralow carbon microalloyed steels. The Ar3 and Bs temperatures decrease as niobium content or cooling rate is increased. The dependence of Ar3 on cooling rate is greater than that of Bs in all niobium contents. The bainitic ferrite laths become longer and narrower with increasing niobium content and cooling rate, and niobium also shows a tendency to decrease polygonal ferrite grain size.

AB - Effects of niobium content and cooling rate on ferrite and bainite start temperatures (Ar3, Bs) and microstructural features have been studied in niobium bearing ultralow carbon microalloyed steels. The Ar3 and Bs temperatures decrease as niobium content or cooling rate is increased. The dependence of Ar3 on cooling rate is greater than that of Bs in all niobium contents. The bainitic ferrite laths become longer and narrower with increasing niobium content and cooling rate, and niobium also shows a tendency to decrease polygonal ferrite grain size.

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DO - 10.4028/0-87849-960-1.65

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AN - SCOPUS:14644409435

SN - 0255-5476

VL - 475-479

SP - 65

EP - 68

JO - Materials Science Forum

JF - Materials Science Forum

IS - I

T2 - PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing

Y2 - 2 November 2004 through 5 November 2004

ER -

Continuous cooling transformation temperatures and microstructures of niobium bearing microalloyed steels

Abstract

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