Effect of Asymmetric Rolling on Plastic Anisotropy of Low Carbon Steels during Simple Shear Tests

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3457548· OSTI ID:21366772

Gracio, J J; Vincze, G; Panigrahi, B B ^[1]; Kim, H J ^[2]; Barlat, F ^[2]; Rauch, E F ^[3]; Yoon, J W ^[4]

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1. Centro de Tecnologia Mecanica e Automacao, Departamento de Engenharia Mecanica, Universidade de Aveiro, 3810-193 Aveiro (Portugal)
2. Materials Mechanics Laboratory(MML), Graduate Institute of Ferrous Technology(GIFT), Pohang University of Science and Technology, San 31 Hyoja-Dong, Nam-Gu, Pohang, Gyeongbuk, 790-784 (Korea, Republic of)
3. Science Ingenierie des Materiaux and Procede s, GPM2 (CNRS UMR 5266) INPG-UJF, BP 46, 38402 Saint Martin d'Heres Cedex (France)
4. Alloy Technology and Material Research Division, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA 15069-0001 (United States)

Simple shear tests are performed on low carbon steel pre-deformed in conventional, asymmetric and orthogonal-asymmetric rolling. The simple-shear tests were carried out at 0 deg. , 45 deg. and 135 deg. with respect to the previous rolling direction. For a reduction ratio of 15%, a transient stagnation in the hardening rate is observed at reloading for all changes in strain path. The shear stress level, the hardening rate and extent of the plateau appear to be insensitive to the preliminary applied rolling conditions. After a reduction ratio of 50%, plastic instability was detected at reloading for all the changes of strain path and rolling conditions studied. A specific heat treatment was then designed allowing the material to become ductile after rolling while retaining the fine microstructure and therefore the high strength. Promising results were obtained essentially for 45 deg. shear tests.

• OSTI ID: 21366772
• Journal Information: AIP Conference Proceedings, Vol. 1252, Issue 1; Conference: NUMIFORM 2010: 10. international conference on numerical methods in industrial forming processes dedicated to Professor O. C. Zienkiewicz (1921-2009), Pohang (Korea, Republic of), 13-17 Jun 2010; Other Information: DOI: 10.1063/1.3457548; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ANISOTROPY
ASYMMETRY
CARBON STEELS
HARDENING
MICROSTRUCTURE
PLASTICITY
PLASTICS
ROLLING
SHEAR
SHEAR PROPERTIES
SPECIFIC HEAT
ALLOYS
CARBON ADDITIONS
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POLYMERS
STEELS
SYNTHETIC MATERIALS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT ALLOYS