x高熵合金涂層。研究Mo元素含量對(duì)涂層微觀結(jié)構(gòu)、硬度及耐腐蝕性的影響。結(jié)果表明，隨著Mo含量的增加，微觀組織從富(Al, Ni)的體心立方（bcc）相和富(Mo-Cr-Fe)的σ相，轉(zhuǎn)變?yōu)楦?Fe, Ni)的bcc相、富(Mo-Cr-Fe)的σ相、富(Al-Fe-Mo)的σ相與少量AlN相。此外，涂層的顯微硬度（HV1）從6154.4 MPa增加到10652.6 MPa。隨著Mo含量的添加，涂層在3.5%（質(zhì)量分?jǐn)?shù)）氯化鈉溶液中的自腐蝕電位升高，當(dāng)Mo含量為x=1.0時(shí)，涂層的耐腐蝕性能最好。"/>

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Mo元素對(duì)激光熔覆AlCoCrFeNiMo x 高熵合金涂層組織性能的影響
作者:
作者單位:

1.遼寧科技大學(xué) 材料與冶金學(xué)院，遼寧 鞍山 114051;2.海洋裝備用金屬材料及其應(yīng)用國(guó)家重點(diǎn)實(shí)驗(yàn)室，遼寧 鞍山 114009;3.鞍鋼集團(tuán) 鋼鐵研究院，遼寧 鞍山 114009

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基金項(xiàng)目:

國(guó)家自然科學(xué)基金（51774179）；遼寧省自然基金（20180550546）


Effect of Mo on Microstructure and Properties of AlCoCrFeNiMo x High Entropy Alloy Coatings Prepared by Laser Cladding
Author:
Affiliation:

1.School of Materials and Metallurgy, University of Science and Technology LiaoNing, Anshan 114051, China;2.State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan 114009, China;3.Steel Research Institute, Angang Group, Anshan 114009, China

Fund Project:

National Natural Science Foundation of China (51774179); Natural Science Foundation of Liaoning Province (20180550546); Joint Fund of State Key Laboratory of Metal Material for Marine Equipment and Application (HGSKL-USTLN(2021)03)

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    摘要:

    采用激光熔覆的方法制備AlCoCrFeNiMox高熵合金涂層。研究Mo元素含量對(duì)涂層微觀結(jié)構(gòu)、硬度及耐腐蝕性的影響。結(jié)果表明，隨著Mo含量的增加，微觀組織從富(Al, Ni)的體心立方（bcc）相和富(Mo-Cr-Fe)的σ相，轉(zhuǎn)變?yōu)楦?Fe, Ni)的bcc相、富(Mo-Cr-Fe)的σ相、富(Al-Fe-Mo)的σ相與少量AlN相。此外，涂層的顯微硬度（HV1）從6154.4 MPa增加到10652.6 MPa。隨著Mo含量的添加，涂層在3.5%（質(zhì)量分?jǐn)?shù)）氯化鈉溶液中的自腐蝕電位升高，當(dāng)Mo含量為x=1.0時(shí)，涂層的耐腐蝕性能最好。

    Abstract:

    AlCoCrFeNiMox (x=0, 0.5, 1.0, 1.5, 2.0) high entropy alloy (HEA) coatings were prepared by laser cladding method. The effect of Mo content on the microstructure, hardness, and corrosion resistance of the coatings was studied. Results show that with increasing the Mo content, the microstructure is changed from (Al, Ni)-rich body-centered cubic (bcc) phase+(Mo-Cr-Fe)-rich σ phase into (Fe, Ni)-rich bcc phase+(Mo-Cr-Fe)-rich σ phase+(Al-Fe-Mo)-rich σ phase+a little AlN (aluminum nitride). Additionally, the coating hardness (HV1) is increased from 6514.4 MPa to 10652.6 MPa. With increasing the Mo addition, the self-corrosion potential of the coating in 3.5wt% NaCl solution is also increased. The coating presents the optimal corrosion resistance at x=1.0.

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沙明紅,王爽,李勝利,賈春堂,黃天蕩,朱曉雷,艾新港,廖湘巍.Mo元素對(duì)激光熔覆AlCoCrFeNiMo x 高熵合金涂層組織性能的影響[J].稀有金屬材料與工程,2023,52(11):3685~3690.[Sha Minghong, Wang Shuang, Li Shengli, Jia Chuntang, Huang Tiandang, Zhu Xiaolei, Ai Xingang, Liao Xiangwei. Effect of Mo on Microstructure and Properties of AlCoCrFeNiMo x High Entropy Alloy Coatings Prepared by Laser Cladding[J]. Rare Metal Materials and Engineering,2023,52(11):3685~3690.]
DOI：10.12442/j. issn.1002-185X. E20230007

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  • 收稿日期:2023-03-24
  • 最后修改日期:2023-07-03
  • 錄用日期:2023-07-06
  • 在線發(fā)布日期: 2023-11-23
  • 出版日期: 2023-11-22