Cavitation Erosion Characteristics of Powder Metallurgy Aluminum Alloys
| Autor: | Koichi Yuri, Tohru Kohno, Masato Otsuki |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Materials science
Mechanical Engineering Erosion corrosion Metallurgy Metals and Alloys chemistry.chemical_element Dispersion (geology) Microstructure Industrial and Manufacturing Engineering Matrix (geology) chemistry Transition metal Aluminium Powder metallurgy Materials Chemistry Cavitation erosion |
| Zdroj: | Journal of the Japan Society of Powder and Powder Metallurgy. 41:922-926 |
| ISSN: | 1880-9014 0532-8799 |
| DOI: | 10.2497/jjspm.41.922 |
| Popis: | Cavitation erosion resistance is an important mechanical property required to high-speed hydrodynamic machine parts materials such as oil pump rotor. In this study, vibratory cavitation erosion test was conducted on rapidly solidified powder Al-Si base alloys to investigate relations between cavitation erosion resistance and their composition or microstructure. It is confirmed that powder forged Al-Si alloys containing large amount of transition metals such as Fe or Cr has as good resistance to cavitation erosion as that of Fe base sintered alloy especially when the powder has fine microstructure owing to high cooling rate of the powder production. The cause of the high resistance to cavitation erosion can be attributed to that the matrix was dispersion strengthened by large amount of fine dispersoids of aluminides of Fe, Cr and Si. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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