電漿熔射法噴覆之鋯基高熵合金塗層具有相當快速的凝固速率，實驗結果顯示熔射塗層無法獲得完全非晶質化組織，其非晶率約達80%左右。由於熔射鋯基高熵合金塗層特性，例如微觀組織、凝固缺陷以及沖蝕磨耗阻抗方面的研究數據非常不足，因此本研究針對塗層非晶度進行定量性分析，此外鍵結強度、熔射組織缺陷與沖蝕磨耗特性之間關係也進行有系統的調查。
上述本實驗之電漿熔射噴塗之非晶化率達80%左右，根據解析可知晶質化相主要為ZrO2及Zr(Cr0.25Fe0.75)2結晶相。此外由SEM/BEI證據顯示熔射塗層有相當含量的凝固缺陷，而且隨塗層厚度增加有增加的趨勢。從沖蝕磨耗實驗結果中可知塗層厚度增加將導致磨耗率增大，此現象與熔射缺陷率增加關係密切，特別是在高角度沖蝕時因熔射凝固缺陷效應明顯，材料磨耗行為主要為熔射裂紋主導之脆性破壞磨耗機制。但低角度時熔射凝固缺陷之效應減小，因此沖蝕磨耗阻抗明顯優於高角度試料。

　　We applied plasma-sprayed technique of high cooling rate to obtain the coating with the property of the quite quick coagulation speed. Experimental results showed that we can’t get fully amorphous coating, the coating layer contains around 80% fraction of amorphous. Because of insufficient data for the microstructure, coagulation defects and particle erosion resistance of the Zr-based high entropy alloy coating, this study was to quantitate the non-crystallinity rate of the coating layer. Moreover, the correlation between bonding strength, microstructural defects and particle erosion characteristic of the coating was also investigated.
Although the coating layer contains around 80% fraction of amorphous, there still exists two crystalline phases, ZrO2 and Zr(Cr0.25Fe0.75)2, according to the XRD. In addition, SEM/BEI result the coating with quite amount of the coagulation defects arising with increasing coating thickness. The result of particle erosion experiment indicated that the increase in the coating thickness. This phenomenon is closely related to the increasing in spraying defects content of the coating, especially at high angle erosion. The material erosion behavior is the mainly wear mechanism of brittle cracks. At the low angle erosion, the coagulation defect effect reduced, therefore the particle erosion resistance obviously surpasses the high angle erosion sample.

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