Study of corrosion mechanism and material removal behavior of oxidizers and environment on electrochemically assisted friction wear of single-crystal GaN

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-07-01 DOI:10.1016/j.wear.2025.206231

Jisheng Pan , Yangting Ou , Juze Xie , Jiawen Yao , Jingkuang Wen , Qiusheng Yan

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Abstract

To systematically investigate the corrosion mechanism and material removal behavior of single-crystal GaN under electrochemically assisted conditions with various oxidants and environmental factors, an electrochemically assisted friction and wear experimental setup was developed in this study. The oxidation behaviors of single-crystal GaN with different oxidants (Na₂S₂O₈ and H₂O₂) and its friction and wear characteristics under diverse environmental conditions were comprehensively analyzed. A comparative analysis was conducted on the corrosion effects and material removal mechanisms of single-crystal GaN under varying oxidation conditions. The results indicate that the corrosion capability of Na₂S₂O₈ on single-crystal GaN is significantly stronger than that of H₂O₂. Under Fe-C+40 mA/cm² conditions, the enhanced oxidation effect is most pronounced, leading to the maximum wear removal area of single-crystal GaN during the frictional wear process. Finally, the corrosion mechanism and material removal process of single-crystal GaN under sodium persulfate conditions were elucidated in detail.

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电化学辅助摩擦磨损中氧化剂和环境的腐蚀机理及材料去除行为研究

为了系统地研究电化学辅助条件下不同氧化剂和环境因素下单晶GaN的腐蚀机理和材料去除行为，本研究建立了电化学辅助摩擦磨损实验装置。综合分析了不同氧化剂（Na2S2O8和H2O2）对单晶GaN的氧化行为及其在不同环境条件下的摩擦磨损特性。对比分析了不同氧化条件下单晶GaN的腐蚀效果和材料去除机理。结果表明：Na2S2O8对单晶GaN的腐蚀能力明显强于H2O2；在Fe-C+40 mA/cm2条件下，氧化增强效果最为明显，导致单晶GaN在摩擦磨损过程中磨损去除面积最大。最后，详细阐述了过硫酸钠条件下单晶GaN的腐蚀机理和材料去除过程。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.