Effect of Processing Schedule on the Microstructure and Texture of 0.78wt% Cr Extra-low-carbon Steel

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概要

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• An extra-low-carbon steel was alloyed with 0.78 wt% Cr and subjected to three different processing schedules involving: (i) warm rolling to 65% reduction at 640°C, (ii) warm rolling to 80% reduction at 580°C and (iii) warm rolling to 65% reduction at 640°C followed by cold rolling to 40% reduction. Increasing the severity of the deformation resulted in an increase in the number of grains containing in-grain shear bands. X-ray bulk texture analysis indicates that the γ-fibre intensity was slightly higher in the steel warm rolled at 580°C than at 640°C and after cold rolling. Transmission electron microscopy and atom probe tomography revealed that Cr carbides were formed after all processing schedules. Carbon segregation to dislocations was also observed. Although the addition of 0.78 wt% Cr produced a volume fraction of carbides that was three orders of magnitude higher than those previously observed in 0.48 wt% Cr steels, a significant amount of solute Cr remained confined in the matrix and did not lead to any further depletion of the solute carbon.

• 2008-10-15

著者

• Jonas John

  Department of Metals and Materials Engineering, McGill University

• Pereloma Elena

  School Of Physics And Materials Engineering Monash University

• Jonas John

  Department Of Materials Engineering Mcgill University

• Miller Michael

  Materials Science And Technology Division Oak Ridge National Laboratory

• Pereloma Elena

  Fac. Of Engineering Univ. Of Wollongong

• GAZDER Azdiar

  School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong

• DAVIES Christopher

  Department of Materials Engineering, Monash University

• Gazder Azdiar

  School Of Mechanical Materials And Mechatronics Engineering University Of Wollongong

• Davies Christopher

  Department Of Materials Engineering Monash University

• PERELOMA Elena

  School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong

関連論文

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• Correlation between the Deformation and Post-deformation Softening Behaviours in Hot Worked Austenite
• Effect of Processing Schedule on the Microstructure and Texture of 0.78wt% Cr Extra-low-carbon Steel
• The Formation of Deformatio Induced Ferrite during Mechanical Testing
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• The Ferrite Transformation in Hot Deformed 0.036% Nb Austenite at Temperatures Above the Ae_3
• AIN Precipitation in Dual-phase 3% Si Electrical Steels
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• Dynamic Transformation of a Low Carbon Steel at Temperatures above the Ae_3
• The Critical Strain for Dynamic Transformation in Hot Deformed Austenite
• Dynamic Transformation Behavior of a Deformed High Carbon Steel at Temperatures Above the Ae3
• The Critical Strain for Dynamic Transformation in Hot Deformed Austenite

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