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Influence of Isothermal Deformation Conditions on The Mechanical Properties of 22MnB5 HPF Steel
- Source :
- steel research international. 81:292-298
- Publication Year :
- 2010
- Publisher :
- Wiley, 2010.
-
Abstract
- In the present study, the aluminized 22MnB5 Hot Press Forming (HPF) steel was deformed isothermally in the temperature range of 600–800 °C. The specimens were deformed with 0%, 10% and 30% engineering strain at a strain rate of 0.5/s. Mechanical stabilization of austenite during phase transformation was observed. The influence of strain rate was also studied. It was found that the martensite transformation was affected by the combined effect of mechanical stabilization and dynamic recovery. The influence of high temperature deformation on the final microstructure, microhardness and mechanical properties were studied. Deformation applied below 750 °C resulted in a significant decrease of the strength and the hardness. The ferrite fraction and morphology had a clear effect on the room temperature tensile fracture morphology.
- Subjects :
- Austenite
Materials science
Deformation (mechanics)
Metallurgy
technology, industry, and agriculture
Metals and Alloys
Strain rate
Condensed Matter Physics
Microstructure
Indentation hardness
Isothermal process
Ferrite (iron)
Martensite
Materials Chemistry
Physical and Theoretical Chemistry
Composite material
Subjects
Details
- ISSN :
- 1869344X and 16113683
- Volume :
- 81
- Database :
- OpenAIRE
- Journal :
- steel research international
- Accession number :
- edsair.doi...........a3d4d69a1a77cf4ec458a7d61dab6073