Microstructure and tribocorrosion properties of TiZrNbTaFe, TiZrNbTaFeC, and TiZrNbTaFeCN high entropy alloy coatings
TiZrNbTaFe、TiZrNbTaFeC 與 TiZrNbTaFeCN 高熵合金鍍層之顯微組織與磨損腐蝕性質
📄 英文摘要
High entropy alloy (HEA) coatings have emerged as a promising solution for various industrial applications due to their exceptional mechanical properties and corrosion resistance. Three TiZrNbTaFe (HEA), TiZrNbTaFeC (HEAC with 2.5 at% C), and TiZrNbTaFeCN (HEACN with 7.3 at% C and 40.3 at% N) coatings were prepared using high power impulse magnetron sputtering and medium-frequency sputtering. HEA and HEAC exhibited amorphous structures, while HEACN had an FCC crystal structure. In pure corrosion tests in 3.5% NaCl, HEAC showed superior corrosion resistance 25.6 times greater than 304SS substrate. HEAC exhibited lower coefficient of friction (0.33 dry, 0.24 tribocorrosion) due to carbon-induced lubricating effect. HEACN showed the best tribocorrosion resistance with lowest total loss of 17.1 mm/yr, owing to its high hardness of 21.4 GPa.
📄 中文摘要
高熵合金（HEA）鍍層因其卓越的機械性質與耐腐蝕性能而成為各種工業應用的理想解決方案。本研究採用高功率脈衝磁控濺鍍與中頻濺鍍系統，製備了三種 TiZrNbTaFe（HEA）、TiZrNbTaFeC（含 2.5 at% C）與 TiZrNbTaFeCN（含 7.3 at% C 與 40.3 at% N）鍍層。HEA 與 HEAC 展現非晶結構，而 HEACN 具有 FCC 晶體結構。在 3.5% NaCl 純腐蝕測試中，HEAC 的耐腐蝕性為 304SS 基材的 25.6 倍。HEAC 因碳誘導潤滑效應，展現較低摩擦係數（乾摩擦 0.33、磨損腐蝕 0.24）。HEACN 因其高硬度（21.4 GPa）而展現最佳磨損腐蝕抗性，總損失最低僅 17.1 mm/yr。
🔬 五項核心重要發現
📊 關鍵圖表
