Effect of Heat Treatment on the Corrosion Behaviour of Rapidly Solidified Al-8Ni-2Co Alloy in NaCl Solution. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 9, Volume 20, Issue 1, March 1995, Page 23-32 PDF (408.39 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2021.160683 | ||||
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| Authors | ||||
| Fawzy El-Sabbahy1; M. Kassem* 1; R. M. Ramadan2 | ||||
| 1Assistant Professor of Metallurgy Department, Faculty of Petroleum and Mining Engineering, Suez Canal University, Suez, Egypt. | ||||
| 2Associate Professor of Metallurgy Department, Faculty of Petroleum and Mining Engineering, Suez Canal University, Suez, Egypt. | ||||
| Abstract | ||||
| The corrosion behaviour of as-rapidly solidified and heat treated AI 8Ni-2Co alloy ribbons produced using melt spinning technique was investigated. The decomposition behaviour of the rapidly solidified ribbons was followed up using x-ray diffraction, differentialscanningcalometry. microhardness, and metallography. The stable phases which are generally formed in conventional solidified alloy in the as cast condition, were not detected in the as-rapidly solidified specimens. Instead, super-saturated solid solution α-AI was present in addition to fine dispersoids of A19(CoNi)2. The corrosion behaviour was investigated through potentiostatic technique in 3.5% NaCL aqueons solution. The corrosion rate was the lowest in the as-rapidly solidified condition and increased with increasing the annealing temperature as a result of the formation and coarsening of the intermetallic Al3Ni. | ||||
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