Deformation Behavior and Dynamic Recrystallization of Biomedical Co-Cr-W-Ni (L-605) Alloy - Université de Lorraine Access content directly
Journal Articles Metallurgical and Materials Transactions A Year : 2013

Deformation Behavior and Dynamic Recrystallization of Biomedical Co-Cr-W-Ni (L-605) Alloy

Abstract

The mechanical behavior of Co-20Cr-15W-10Ni alloy is studied by compression tests at high temperature. Microstructures after deformation are evaluated using SEM-EBSD. Significant grain refinement occurs by dynamic recrystallization for high temperatures and low strain rates [T > 1373 K (1100 A degrees C), strain rate < 0.1 s(-1)], and at high strain rates (strain rate similar to 10 s(-1)). Dynamic recrystallization is discontinuous and occurs by nucleation of grain boundaries, leading to a necklace-like structure. The nucleation mechanism is most likely bulging of grain boundaries. However, recrystallization occurs also by rotation of annealing twins, which can bulge as well. Modeling of the observed mechanical behavior gives a fair quantification of flow softening due to dynamic recrystallization, indicating the progress of dynamic recrystallization with deformation.

Dates and versions

hal-01500813 , version 1 (03-04-2017)

Identifiers

Cite

Julien Favre, Yuichiro Koizumi, Akihiko Chiba, D. Fabregue, Eric Maire. Deformation Behavior and Dynamic Recrystallization of Biomedical Co-Cr-W-Ni (L-605) Alloy. Metallurgical and Materials Transactions A, 2013, 44A (6), pp.2819-2830. ⟨10.1007/s11661-012-1602-x⟩. ⟨hal-01500813⟩
157 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More