🤝 共同合作論文

Mechanical properties and corrosion resistance evaluation of nanocomposite AlCrNbSiTiBCN high entropy alloy coatings fabricated using superimposed HiPIMS-MF system: Effect of B contents

摻雜硼含量對奈米複合 AlCrNbSiTiBCN 高熵合金鍍層之機械性質與耐腐蝕性能影響

Surfaces and Interfaces, 64 (2025) 106435 (Elsevier) | DOI: 10.1016/j.surfin.2025.106435

作者：Igamcha Moirangthem, Chaur-Jeng Wang, Bih-Show Lou, Ismail Rahmadtulloh, Krishnakant Tiwari, Chen-Hao Wang, and Jyh-Wei Lee*

📄 英文摘要

In this study, a superimposed HiPIMS-MF system was used to fabricate five nanocomposite AlCrNbSiTiBCN high entropy alloy nitride coatings with varying B contents. The coatings exhibited a nanocomposite microstructure consisting of nano-sized FCC metal nitride phases with small amounts of carbide and carbonitrides embedded in the amorphous matrix. The hardness decreased from 19.9 to 15.9 GPa with increasing B content due to the formation of an amorphous BN matrix. All coatings showed excellent corrosion resistance in 3.5 wt.% NaCl solution, with polarization resistance values 16 to 37 times higher than the bare AISI304 stainless steel substrate. This study successfully developed promising hard and anticorrosion AlCrNbSiTiBCN HEA nitride coatings.

📄 中文摘要

本研究採用疊加式 HiPIMS-MF 系統，製備了五種不同硼含量的奈米複合 AlCrNbSiTiBCN 高熵合金氮化物鍍層。鍍層展現奈米複合結構，其特徵為奈米級 FCC 金屬氮化物相嵌入於非晶質基質中，並含有少量碳化物與碳氮化物。隨著硼含量增加，硬度由 19.9 GPa 下降至 15.9 GPa，此乃歸因於非晶 BN 基質之形成。所有鍍層在 3.5 wt.% NaCl 溶液中皆展現優異的耐腐蝕性能，極化電阻為裸 AISI304 不鏽鋼基材的 16 至 37 倍。本研究成功開發出兼具高硬度與優異耐腐蝕性的 AlCrNbSiTiBCN 高熵合金氮化物鍍層。

🔬 五項核心重要發現

**HiPIMS-MF 鍍層技術**：結合高功率脈衝磁控濺鍍與中頻脈衝，成功製備奈米複合 AlCrNbSiTiBCN 高熵合金氮化物鍍層。

**硬度範圍**：19.9–15.9 GPa，隨硼含量增加而下降（因非晶 BN 基質形成）。

**耐磨性**：磨損率 1.1×10⁻⁵ 至 6.1×10⁻⁵ mm³N⁻¹m⁻¹，高硼樣品磨損率急升至 1.8×10⁻⁴ mm³N⁻¹m⁻¹。

**優異耐腐蝕性**：極化電阻為裸 AISI304 基材的 16–37 倍。

**應用潛力**：本研究開發出兼具高硬度與優異耐腐蝕性的高熵合金鍍層，適用於材料表面防護與高端工程應用。

📊 關鍵圖表

Schematic diagram of the deposition system.

圖表 2：Temporal evolutions of target voltage and current waveforms of HiPIMS and MF of Al4Cr2NbSiTi2 target during deposition of TB-0 and TB-700 samples.