x高熵合金涂層。研究Mo元素含量對涂層微觀結(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)量分數(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,涂層的耐腐蝕性能最好。;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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