Recrystallisation at intercritical annealing in low carbon steels

被引：13

作者：

Maruyama, N. ^{[1
]}

Ogawa, T. ^{[1
]}

Takahashi, M. ^{[1
]}

机构：

[1] Nippon Steel Corp Ltd, Steel Res Labs, 20-1 Shintomi, Futtsu 2938511, Japan

来源：

RECRYSTALLIZATION AND GRAIN GROWTH III, PTS 1 AND 2 | 2007年 / 558-559卷

关键词：

low carbon steels; dual phase steels; incomplete recrystallisation; subgrain growth; recovery; intercritical annealing;

D O I：

10.4028/www.scientific.net/MSF.558-559.247

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Subgrain growth in deformed ferrite and incomplete recrystallisation during intercritical annealing in low carbon (LC) steels was investigated by EBSD and FEGTEM/EDS. It was confirmed that fine dual phase (alpha+gamma) microstructures could be obtained even without the addition of microalloying elements such as Nb and Ti, if the steels were heated above Ac-1 temperature before the completion of primary recrystallisation and then intercritically annealed. The fine microstructure was found to be mainly due to the inhibition of primary recrystallisation, and also due to the inhibition of subgrain growth in deformed matrix by finely dispersed gamma phase formed during heating. Mn segregation at alpha/gamma interfaces seems to indicate that the kinetics of boundary migration in the existence of gamma is controlled by the volume diffusion of substitutional alloying elements across the alpha/gamma interfaces.

引用

页码：247 / +

页数：2

共 17 条

[1]

[Anonymous], 2013, Smithells Met. Ref. B, DOI DOI 10.1016/C2009-0-25363-3

[2] EFFECT OF ALLOYING ELEMENTS ON RATE OF OSTWALD RIPENING OF CEMENTITE IN STEEL [J].

BJORKLUND, S ;

DONAGHEY, LF ;

HILLERT, M .

ACTA METALLURGICA, 1972, 20 (07) :867-+

[3]

Bleck W., 2002, P INT C NIOB 2001 NI, P727

[4]

BURKE JE, 1949, ASM, P1

[5]

DAVENPORT AT, 1977, P TMS AIME

[6]

GARCIA CI, 2005, DEV SHEET PRODUCTS A, P77

[7]

Goodman S. R., 1984, C P INT C TECHN APPL, P239

[8]

Hayami S., 1979, FORMABLE HSLA DUAL P, P167

[9] INFLUENCE OF PHOSPHORUS IN DILUTE SOLID SOLUTION ON ABSOLUTE SURFACE AND GRAIN BOUNDARY ENERGIES OF IRON [J].

HONDROS, ED .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1965, 286 (1407) :479-&

[10]

Hornbogen E, 1978, RECRYSTALLIZATION ME, P159

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