Effect of Initial Austenite Microstructure on the Softening – Precipitation Interaction in a Low Nb Microalloyed Steel

C. Iparraguirre; Ana Isabel Fernández-Calvo; Beatriz López

doi:10.4028/www.scientific.net/MSF.550.429

Paper Titles

Pinning Forces Exerted by TiN Particles in Austenite of Structural Steels and Comparison with Driving Forces for Grain Growth and for Static Recrystallisation
p.405

Structural Dependence of Grain Boundary Energy in Fe-Based Polycrystals Identified by OIM Measurements
p.411

Static Recrystallization of Austenite in a Medium-Carbon Vanadium Microalloyed Steel and Inhibition by Strain-Induced Precipitates
p.417

Microstructural Refinement during Annealing of Plastically Deformed Austenitic Stainless Steels
p.423

Effect of Initial Austenite Microstructure on the Softening – Precipitation Interaction in a Low Nb Microalloyed Steel
p.429

The Role of Austenite Grain Misorientation on Ferrite Nucleation in an Fe-Cr-Ni Alloy
p.435

In-Situ EBSD Observation of the Recrystallization of an IF Steel at High Temperature
p.441

Temperature and Deformation Effects on the Recrystallization Microstructure and Texture of Wire Draw Steel
p.447

Role of Recovery in the Recrystallization Simulation Application to a Cold Rolled IF-Ti Steel and a Cold Drawn Copper Wire
p.453

HomeMaterials Science ForumMaterials Science Forum Vol. 550Effect of Initial Austenite Microstructure on the...

Effect of Initial Austenite Microstructure on the Softening – Precipitation Interaction in a Low Nb Microalloyed Steel

Abstract:

The influence of initial grain size on the softening-precipitation interaction in a low niobium microalloyed steel has been investigated. The study has revealed that for the largest initial grain size (1000 μm), the recrystallised fraction remains lower than the softening fraction until relatively long times are reached. In contrast, for the smallest initial grain size (166 μm) both magnitudes are similar. As a result, precipitation interacts with recrystallisation in the case of the finest austenite grain size, whereas for the coarsest one, since recrystallisation is significantly retarded, interaction with recovery process is observed. Apparently, the initial austenite grain size does not affect precipitation kinetics.

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Periodical:

Materials Science Forum (Volume 550)

Pages:

429-434

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.550.429

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Online since:

July 2007

Authors:

C. Iparraguirre, Ana Isabel Fernández-Calvo, Beatriz López

Keywords:

Austenite Grain Size, Nb Microalloyed Steel, Softening Precipitation Interaction, Strain-Induced Precipitation

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