高速火焰熔射鎳基合金不同鉻含量之腐蝕磨耗行為研究

A Study on Corrosion and Wear Behavior of High Velocity Oxygen Fuel Nickel-based Alloys Coating with Different Chromium Contents

洪願驩(Yuan‐Huan Hong) ； 張盛越(Sheng-Yueh Chang) ； 蕭瑞昌(Ruey-Chang Hsiao) ； 羅建明(Chien-Ming Lo) ； 李弘彬(Hung-Bin Lee)

《防蝕工程》 37卷1期 (2023/03) Pp. 11-24

https://doi.org/10.6376/JCCE.202303_37(1).0002

摘要

本研究運用銷與環（block-on-ring）腐蝕磨耗系統探討鎳基合金不同鉻含量之腐蝕磨耗為，鎳基合金鍍層以高速火焰噴塗技術製備，本研究主要在釐清鎳基合金之腐蝕與磨耗行為，在海水中研究腐蝕與磨耗交互作用，利用動態電位極化曲線與摩擦係數量測，探討不同極化電位對鍍層腐蝕磨耗的影響，並透過SEM、XRD觀察腐蝕狀況。實驗結果在純腐蝕與腐蝕磨耗方面，鉻含量低（試片A）的重量損失都比鉻含量高的來的多，鉻含量低的鍍層表面及橫截面受到腐蝕與磨耗的影響比鉻含量高（試片B）來的嚴重，說明鉻含量高的抗腐蝕性與抗磨耗性較好。透過腐蝕磨耗定量分析，隨極化電位增加腐蝕磨耗（W_(total)）總損失量呈現大幅度增加，腐蝕磨耗交互作用佔全體的損失很大份量。

關鍵字

高速火焰噴塗 ； 腐蝕 ； 腐蝕磨耗 ； 鎳基合金

並列摘要

In this study, a block-on-ring corrosion and wear system was applied to investigate the corrosion and wear behavior of nickel-based alloys with different chromium content. The effect of different polarization potentials on the corrosion and wear of the plated layer was investigated by using dynamic potential polarization curves and friction coefficient measurements. The results of the experiment showed that the weight loss of low chromium content (Specimen A) was more than that of high chromium content in terms of pure corrosion and corrosion wear, and the surface and cross section of the plating with low chromium content were more seriously affected by corrosion and wear than that of high chromium content (Specimen B). By the quantitative analysis of corrosion and wear, the total loss of corrosion and wear (W_(total)) increased significantly with the increase of polarization potential, and the interaction of corrosion and wear accounted for a large portion of the total loss.

並列關鍵字

HVOF ； Corrosion ； Corrosion wear ； Nickel-based alloys

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