Abstract
Pure chromium produced via a powder metallurgical route exhibits brittleness at room temperature (RT) in the recrystallized condition. The ductile to brittle transition temperature (DBTT) lies between 220 °C (bending and tensile tests) and 300 °C (fracture toughness experiments). To increase the ductility at RT the effect of plastic pre-deformation has been investigated. Small pre-deformations above the DBTT result in ductility in bending and in tension at RT. Severe plastic deformation (SPD) by equal channel angular extrusion and by a special developed procedure leads to a significant increase in both in strength and in ductility. However it is important to avoid the nucleation of small cracks during SPD in order to achieve a very good ductility.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
