Influence of cold rolling and strain rate on plastic response of powder metallurgy and chemical vapor deposition rhenium
Document Type
Article
Publication Date
10-1999
Department
Department of Mechanical Engineering-Engineering Mechanics
Abstract
The plastic response of two kinds of rhenium processed via powder metallurgy (PM) and chemical vapor deposition (CVD) were investigated under uniaxial compression over a range of strain rates. The PM rhenium, further cold rolled to 50 and 80 pet of the original thickness, was also investigated to assess the influence of cold work on the plastic behavior. A strong basal texture was detected in all the preceding materials as a result of processing and cold work. Both CVD and PM rhenium exhibited an increase in yield strength and flow stress with increasing strain rate. In PM rhenium, cold work resulted in an increase in hardness and yield strength and a decrease in the work hardening rate. The deformed microstructures revealed extensive twinning in CVD rhenium. At large strains, inhomogeneous deformation mode in the form of classical cup and cone fracture was noticed.
Publication Title
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Recommended Citation
Koeppel, B.,
&
Subhash, G.
(1999).
Influence of cold rolling and strain rate on plastic response of powder metallurgy and chemical vapor deposition rhenium.
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science,
30(10), 2641-2648.
http://doi.org/10.1007/s11661-999-0304-5
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/5071