Journal
POWDER METALLURGY
Volume 52, Issue 2, Pages 124-134Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1179/174329008X293723
Keywords
Conform; Cu-Cr-Zr; High temperature; Inverse extrusion; Rapid solidification
Categories
Funding
- Mexican Government through the National Council of Science and Technology (CONACYT)
- CIATEQ
Ask authors/readers for more resources
Water atomised Cu-Cr-Zr alloy powders were consolidated by inverse warm extrusion and by the commercial continuous rotary extrusion method, Conform. Those alloys consolidated by inverse warm extrusion exhibited enhanced mechanical properties compared with their respective Conform extruded counterparts, when tested at both room and elevated temperatures. The processing parameters adopted in the inverse extrusion experiments resulted in products which retained enough amounts of solutes in solid solution, which in turn, led to improved mechanical properties after aging. Conversely, the excessive adiabatic heat generated in the Conform machine eliminated the saturation effect produced by rapid solidification, negating any possible further improvement on the mechanical properties by aging. The mechanical properties of an inverse extruded Cu-2.8Cr-0.39Zr (at.-%) alloy at temperatures above 450 degrees C were higher than those strengths reported for Cu-Be alloys and comparable to that of Cu-Ta and Cu-Nb composites. Therefore, rapidly solidified Cu-Cr-Zr alloys can be possible candidates for replacing such alloy systems for high temperature applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available