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Improving tensile property and thermal stability of the Cu-Ta alloy by alloying with Cr.
- Source :
-
Journal of Alloys & Compounds . Jun2022, Vol. 905, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- The wide applications of Cu-10Ta (at%) composite are limited due to the high cost of Ta element (24 wt%). In the present research, Cu-0.6Ta-0.6Cr and Cu-0.6Ta alloys with low Ta content were fabricated by mechanical alloying and spark plasma sintering. The results indicate that the thermal stability and tensile strength of Cu-0.6Ta-0.6Cr alloy are significantly increased by the addition of Cr. The microstructure characterizations reveal that the performance enhancement of Cu-0.6Ta-0.6Cr alloy is ascribed to the transformation of nanoparticles in the matrix from Ta to more stable Cr 2 Ta Laves and the refinement effects of these nanoparticles from 19.4 nm to 14.1 nm. This work provides a potential for the wide applications of Cu-Ta alloy with low Ta by alloying with Cr at elevated temperatures. • The addition of Cr transforms the nanoparticles from Ta to Cr 2 Ta Laves. • The grains and nanoparticles in Cu-Ta-Cr alloy have extremely high growth resistance. • The thermal stability of the Cu-Ta-Cr alloy is highly improved by adding Cr. • The tensile strength of Cu-Ta-Cr alloy is greatly increased by adding Cr. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 905
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 155692521
- Full Text :
- https://doi.org/10.1016/j.jallcom.2022.164181