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

被引：2

作者：

Garcia-Junceda, A.

Caballero, F. G.

Iung, T.

Capdevila, C.

de Andres, C. Garcia

机构：

[1] CSIC, Ctr Nacl Invest Met, Dept Met Phys, Solid Solid Transformat Grp MATERALIA, E-28040 Madrid, Spain

[2] Arcelor Res, F-57214 Maizerez Les Metz, France

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2007年 / 23卷 / 06期

关键词：

dual phase steel; continuous annealing; austenite grain size; overaging;

D O I：

10.1179/174328407X179557

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：671 / 676

页数：6