Research on the Structural-Phase and Physical-Mechanical Characteristics of the Cr3C2-NiCr Composite Coating Deposited by the HVOF Method on E110 Zirconium Alloy

被引：2

作者：

Kurbanbekov, Sherzod ^{[1
,2
]}

Rakhadilov, Bauyrzhan ^{[3
]}

Kakimzhanov, Dauir ^{[4
]}

Seitov, Bekbolat ^{[1
]}

Katpaeva, Karakoz ^{[1
]}

Kurmantayev, Abil ^{[1
,5
]}

Dautbekov, Merkhat ^{[4
]}

Kengesbekov, Aidar ^{[6
]}

机构：

[1] Int Kazakh Turkish Univ, Turkestan 161200, Kazakhstan

[2] LLP Inst Innovat Technol & New Mat, Turkestan 161200, Kazakhstan

[3] S Amanzholov East Kazakhstan Univ, Ust Kamenogorsk 070000, Kazakhstan

[4] Plasma Sci LLP, Ust Kamenogorsk 070000, Kazakhstan

[5] Engn Ctr Innotechmash, Ust Kamenogorsk 070000, Kazakhstan

[6] Inst Composite Mat, Ust Kamenogorsk 070000, Kazakhstan

来源：

COATINGS | 2024年 / 14卷 / 08期

关键词：

HVOF; deposition efficiency; Cr3C2-NiCr coating; E110 zirconium substrate; HARD COATINGS; PERFORMANCE; SHAPE;

D O I：

10.3390/coatings14081030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composite coatings based on chromium carbide (Cr3C2) and nickel-chromium alloys (NiCr) are widely used due to their unique properties, including high heat resistance, wear resistance and corrosion resistance. This article studies the structural-phase and physical-mechanical characteristics of Cr3C2-NiCr composite coatings applied by high-velocity oxygen fuel to E110 zirconium alloy. The HVOF method was chosen to create coatings with high adhesion to the substrate and excellent performance properties. Analysis of the microstructure of the cross-section showed the thickness of the modified surface layer from 75 to 110 mu m, depending on the processing modes. Energy dispersive X-ray spectral analysis revealed the presence of elements Cr, Ni, C and O in the coating composition. Structural-phase analysis confirmed the formation of coatings with a high concentration of Cr3C2 carbide particles and NiCr (nickel-chromium) phases. The resulting composite coatings based on Cr3C2-NiCr had a significantly high microhardness, ranging from HV 1190 to HV 1280, and the friction coefficient varied in a significant range from 0.679 to 0.502 depending on the processing conditions. The maximum adhesion strength was 9.19 MPa per square centimeter.

引用

页数：12

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