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WC和Al2O3对氩弧熔覆FeAlCoCrCuTi0.4高熵合金涂层组织和耐冲蚀性能影响

董世知, 孟旭, 马壮, 赵越超

董世知, 孟旭, 马壮, 赵越超. WC和Al2O3对氩弧熔覆FeAlCoCrCuTi0.4高熵合金涂层组织和耐冲蚀性能影响[J]. 焊接学报, 2019, 40(7): 127-132. DOI: 10.12073/j.hjxb.2019400194
引用本文: 董世知, 孟旭, 马壮, 赵越超. WC和Al2O3对氩弧熔覆FeAlCoCrCuTi0.4高熵合金涂层组织和耐冲蚀性能影响[J]. 焊接学报, 2019, 40(7): 127-132. DOI: 10.12073/j.hjxb.2019400194
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DONG Shizhi, MENG Xu, MA Zhuang, ZHAO Yuechao. Effects of WC and Al2O3 on the microstructure and erosion wear resistance of FeAlCoCrCuTi0.4 high-entropy alloy coating by argon arc cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 127-132. DOI: 10.12073/j.hjxb.2019400194
Citation: DONG Shizhi, MENG Xu, MA Zhuang, ZHAO Yuechao. Effects of WC and Al2O3 on the microstructure and erosion wear resistance of FeAlCoCrCuTi0.4 high-entropy alloy coating by argon arc cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 127-132. DOI: 10.12073/j.hjxb.2019400194
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WC和Al2O3对氩弧熔覆FeAlCoCrCuTi0.4高熵合金涂层组织和耐冲蚀性能影响

  • 1.

    辽宁工程技术大学, 阜新 123000

  • 2.

    辽宁工程技术大学, 阜新 123000;辽宁科技学院, 本溪 117300

  • 3.

    烟台南山学院, 龙口 265713

基金项目: 辽宁省教育厅科学技术研究一般项目（551501108）

Effects of WC and Al2O3 on the microstructure and erosion wear resistance of FeAlCoCrCuTi0.4 high-entropy alloy coating by argon arc cladding

  • 1.

    Liaoning Technical University, Fuxin 123000, China

  • 2.

    Liaoning Technical University, Fuxin 123000, China;Liaoning Institute of Science and Technology, Benxi 117300, China

  • 3.

    Yantai Nanshan University, Longkou 265713, China

摘要

    摘要
  • 摘要: 利用氩弧熔覆技术制备了FeAlCoCrCuTi0.4，WC/Al2O3-FeAlCoCrCuTi0.4高熵合金涂层，并通过XRD，SEM，EDS，硬度测试和冲蚀磨损测试等方法，探究了WC和Al2O3的添加对FeAlCoCrCuTi0.4高熵合金涂层显微组织和性能的影响.结果表明，通过氩弧熔覆技术所制备的合金涂层表面成形性良好，无孔洞、裂纹等缺陷产生，与基体呈高强度冶金结合.WC和Al2O3的添加对涂层稀释率的降低有显著作用.三种涂层都是主要由Bcc相（Fe-Cr固溶体）构成，晶粒以胞状树枝晶形式存在.添加WC后，晶粒细化明显，在各种强化作用下涂层硬度为685.8 HV.且WC和Al2O3的添加显著提高了涂层耐冲蚀磨损性能，耐磨性几乎可以达到FeAlCoCrCuTi0.4高熵合金涂层的2倍.
    Abstract: FeAlCoCrCuTi0.4, WC/Al2O3-FeAlCoCrCuTi0.4 high-entropy alloy (HEA) coating had been cladded by means of argon arc cladding. The effects of WC and Al2O3 on microstructure and properties of FeAlCoCrCuTi0.4 high entropy alloy coatings were investigated by means of XRD, SEM, EDS, hardness testing and erosion wear testing. The results show that the alloy coating prepared by argon arc cladding has good formability, no holes, cracks and other defects, and high strength metallurgical bonding with the matrix. The addition of WC and Al2O3 has a significant effect on reducing the dilution rate of the coating. The three kinds of coatings are mainly composed of BCC phase (Fe-Cr solid solution), and the grains exist in the form of cellular dendrites. After adding WC, the grain size is obviously refined, and the hardness of the coating is 685.8 HV under various strengthening effects. The addition of WC and Al2O3 significantly improved the erosion wear resistance of the coating, and the wear resistance could almost reach 2 times of that of FeAlCoCrCuTi0.4 high entropy alloy coating.
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    • 参考文献(12)
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  • 收稿日期:  2018-06-30

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