Kinetic analysis of the austenitic grain growth in HSLA steel with a low carbon content

被引：58

作者：

Illescas, S. ^{[1
]}

Fernandez, J. ^{[1
]}

Guilemany, J. M. ^{[1
]}

机构：

[1] Univ Barcelona, Dept Ciencia Mat & Engn Met, E-08028 Barcelona, Spain

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 20期

关键词：

microalloyed steel; HSLA; austenite growth; kinetics;

D O I：

10.1016/j.matlet.2008.03.001

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The austenitic normal grain growth of the 16MnNi4 HSLA steel has been investigated by means of the simplified kinetic model developed by Burke and Turhbull. The equation involved in the model allows the setting of a correlation between the kinetic parameters and the microstructure features of the materials. The grain growth exponent (n) has been studied to interpret the mechanism of grain growth in the samples with different heat treatments. It was noted that the kinetic n exponent value increases when the temperature decreases. The variation in the n values (from 2 until 8) has been associated with the solubility or precipitation of the different microalloyed elements presented in the HSLA steel. Also, the activation energies have been calculated obtaining different values depending on the heat treatment. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3478 / 3480

页数：3

共 10 条

[1]

ANALYTICAL MODELING OF GRAIN-GROWTH IN METALS AND ALLOYS IN THE PRESENCE OF GROWING AND DISSOLVING PRECIPITATES .1. NORMAL GRAIN-GROWTH [J].

ANDERSEN, I ;

GRONG, O .

ACTA METALLURGICA ET MATERIALIA, 1995, 43 (07) :2673-2688

[2]

THEORIES OF NORMAL GRAIN-GROWTH IN PURE SINGLE-PHASE SYSTEMS [J].

ATKINSON, HV .

ACTA METALLURGICA, 1988, 36 (03) :469-491

[3]

Effect of titanium on the kinetics of the σ-phase formation in a small grain Fe-Cr alloy [J].

Blachowski, A ;

Cieslak, J ;

Dubiel, SM ;

Zukrowski, J .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 308 :189-192

[4]

Box GEP, 1978, STAT EXPT

[5]

RECRYSTALLIZATION AND GRAIN GROWTH [J].

BURKE, JE ;

TURNBULL, D .

PROGRESS IN METAL PHYSICS, 1952, 3 :220-292

[6]

Heterogeneous austenite grain growth in 9Cr martensitic steels: influence of the heating rate and the austenitization temperature [J].

Danon, A ;

Servant, C ;

Alamo, A ;

Brachet, JC .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 348 (1-2) :122-132

[7]

Effect of microalloying elements on the austenitic grain growth in a low carbon HSLA steel [J].

Fernandez, J. ;

Illescas, S. ;

Guilemany, J. M. .

MATERIALS LETTERS, 2007, 61 (11-12) :2389-2392

[8]

GLADMAN T, 1990, P 2 INT C HSLA STEEL

[9]

Grain growth in nanocrystalline iron prepared by mechanical attrition [J].

Malow, TR ;

Koch, CC .

ACTA MATERIALIA, 1997, 45 (05) :2177-2186

[10]

4 STAGES OF GRAIN GROWTH [J].

SIMPSON, CJ ;

AUST, KT ;

WINEGARD, WC .

METALLURGICAL TRANSACTIONS, 1971, 2 (04) :987-&

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