Sage Journals: Discover world-class research

Abstract

A dual phase steel with an initial coarse microstructure was refined, by means of a thermal treatment, to study the influence of the austenite grain size reached during an intercritical annealing treatment on the martensite start temperature. Thus, the effect of the austenite grain size on a subsequent overaging treatment was also investigated. It was found that a coarser austenite grain size leads to a higher martensite start temperature and a lower amount of non-tempered martensite and/or austenite (MA constituents) volume fraction after a continuous annealing and overaging treatment. The non-tempered martensite and/or austenite volume fraction always was higher for the highest overaging temperature.

Keywords

DUAL PHASE STEEL CONTINUOUS ANNEALING AUSTENITE GRAIN SIZE OVERAGING

Get full access to this article

View all access options for this article.

References

Grushko

and Weiss

B. Z.

: Scr. Metall, 1989, 23, 865–870.

Read

H. G.

: Scr. Mater., 1997, 37, (2), 151–157.

Tavares

S. S. M.

, Pedroza

P. D.

, Teodósio

J. R.

and Gurova

: Scr. Mater., 1999, 40, (8), 887–892.

Fang

, Fan

, Ralph

, Evans

and Underhill

: J. Mater. Process. Technol., 2003, 132, 215–218.

Joarder

, Jha

J. N.

, Ojha

S. N.

and Sarma

: Mater. Charact., 1990, 25, 199–209.

Honeycombe

R. W. K.

and Bhadeshia

H. K. D. H.

: ‘Steels microstructure and properties’, 171; 1995, London, Edward Arnold.

Andrews

K. W.

: J. Iron Steel Inst., 1965, 203, 721–727.

Greninger

A. B.

and Troiano

A. R.

: Trans. Am. Soc. Met., 1944, 33, 537–574.

Payson

and Savage

C. H.

: Trans. Am. Soc. Met., 1944, 33, 261–280.

10.

Carapella

L. A.

: Met. Frog., 1944, 46, (1), 108–118.

11.

Grange

R. A.

and Stewart

H. M.

: Trans. AIME, 1946, 167,467–490.

12.

Steven

and Haynes

A. G.

: J. Iron Steel Inst., 1956, 183, 349–359.

13.

Brofman

P. J.

and Ansell

G. S.

: Metall Trans. A, 1983, 14A, 1929–1931.

14.

Capdevila

, F Caballero

. G.

and Garcia

Andrés

: Mater. Sci. Technol., 2003, 19, 581–586.

15.

Garcia de Andrés

, Caballero

F. G.

, Capdevila

and Alvarez

L. F.

: Mater. Charact., 2002, 48, 101–111.

16.

Underwood

E. E.

: ‘Quantitative stereology’, 73-75; 1970, Reading, MA, Addison-Wesley Publishing Co.

17.

Caballero

F. G.

, Garcfa-Junceda

, C. Capdevila and C. Garcia de Andrés: Mater. Trans., 2006, 47, (9), 2269–2276.

18.

Albutt

K. J.

and Garber

: J. Iron Steel Inst., 1966, 204, 1217–1222.

19.

Speich

G. R.

, Demarest

V. A.

and Miller

R. L.

: Metall Trans. A, 1981, 12A, 1419–1428.

20.

J. J.

, Kim

I. S.

and Choi

H. S.

: Metall. Trans. A, 1985, 16A, 1237–1245.

21.

Roósz

, Gazsi

and Fuchs

E. G.

: Acta Metall, 1983, 31, 509–517.

Influence of austenite grain size on overaging treatment of continuous annealed dual phase steels

Abstract

Keywords

Get full access to this article

References