The mechanical properties of high purity chromium

This paper presents a study of the mechanical properties of high purity chromium. The results show that if interstitial content is sufficiently high in the material, brittle fracture is observed at temperatures above room temperature. In particular, our results show that carbon has a very damaging effect. However, it was found that a single crystal of ultra-high purity chromium showed notch ductility at room temperature. When this material was rolled and recrystallized to put grain boundaries into the sample, it maintained notch ductility at room temperature. Thus we conclude that high purity chromium can have ductility at room temperature.