Structure and Corrosion Behavior of Multiphase Intermetallic ZrCu-Based Alloys.
Rafał Babilas1, Katarzyna Młynarek-Żak2, Aneta Kania1
1Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland.
Materials (Basel, Switzerland)
|September 14, 2024
Summary
Newly developed zirconium-based alloys exhibit promising properties. Ribbons showed superior corrosion resistance, while a copper-rich ingot demonstrated better corrosion resistance but lower hardness and higher wear.
Area of Science:
- Materials Science
- Metallurgy
- Corrosion Engineering
Background:
- Zirconium-based alloys are recognized for excellent corrosion resistance, thermal stability, and mechanical properties.
- New alloy compositions are continuously explored to enhance material performance for various applications.
Purpose of the Study:
- To investigate the structural, thermal, and corrosion properties of two novel zirconium-based alloys.
- To evaluate the mechanical performance, including microhardness and abrasive wear resistance.
- To compare the properties of these alloys in ingot and ribbon forms.
Main Methods:
- Comprehensive structural and thermal analysis.
- Electrochemical studies and corrosion mechanism analysis.
- Microhardness testing and pin-on-disc abrasive wear tests.
Main Results:
- Both alloys presented a multiphase, crystalline structure with intermetallic phases.
- Ribbon samples exhibited enhanced corrosion resistance compared to ingots.
- The Zr42.42Cu41.18Al9.35Ag7.05 alloy (higher copper content) showed better corrosion resistance but lower hardness and higher abrasive wear.
Conclusions:
- The form of the alloy (ingot vs. ribbon) significantly impacts corrosion resistance.
- Compositional variations, particularly copper content, influence the balance between corrosion resistance, hardness, and wear.
- These findings provide insights for optimizing zirconium-based alloys for specific engineering demands.
Keywords:
ZrCu-based alloyscorrosion resistancerapid solidificationstructural characterizationthermal analysisthermodynamic calculationstribological testsMore Related Videos
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