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| 題名: | Corrosion Behavior of CoCrFeNiTax Alloys in 1 M Sodium Chloride Aqueous Solution |
| 作者: | Tsau, CH (Tsau, Chun-Huei)
Hsiao, RW (Hsiao, Rong-Wei)
Chien, TY (Chien, Tien-Yu) |
| 貢獻者: | 化材系 |
| 關鍵詞: | CoCrFeNiTax alloys
corrosion
microstructures
hardness
polarization test
electrochemical impedance spectroscopy
critical pitting temperature |
| 日期: | 2020-11 |
| 上傳時間: | 2021-01-19 10:15:13 (UTC+8) |
| 摘要: | This paper investigates the effects of Ta content on the microstructures, hardness and corrosion behavior of as-cast CoCrFeNiTax alloys. The results indicate that the addition of Ta can change the microstructures of these alloys to dual-phased structures (FCC + HCP), as well as increasing their hardness. This study uses constant galvanostatic/potentiometric methods to measure the polarization curves of CoCrFeNiTa0.1, CoCrFeNiTa0.3 and CoCrFeNiTa0.5 alloys in deaerated 1 M sodium chloride solution at different temperatures. Electrochemical impedance spectroscopy is also used to analyze these alloys in sodium chloride solution. The results indicate that the CoCrFeNiTa0.5 alloy has a eutectic structure and the highest hardness. Furthermore, although the CoCrFeNiTa0.5 alloy has the best corrosion resistance, the CoCrFeNiTa0.3 alloy has the best pitting resistance among these alloys. |
| 關聯: | MATERIALS 卷冊: 13 期: 22 文獻號碼: 5157 |
| 顯示於類別: | [化學工程與材料工程學系暨碩士班] 期刊論文
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