Effect of WC content on microstructure and properties of laser-cladded in-situ reactive ZrC/ZrB2 composite coatings on zirconium alloy

被引：23

作者：

Liu, Kun ^{[1
,2
]}

Wang, Hao ^{[1
]}

Shu, Chang ^{[2
]}

Zhou, Junbo ^{[2
]}

Li, Jie ^{[1
,2
]}

Wang, Chengwen ^{[2
]}

Wu, Hong ^{[2
]}

Li, Jie ^{[1
,2
]}

Wang, Lixiang ^{[1
]}

机构：

[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212100, Peoples R China

[2] China Shipbuilding Ind Corp, Emergency Warning & Rescue Equipment Co Ltd, Wuhan 430223, Peoples R China

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2024年 / 118卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Laser cladding; WC content; In-situ reaction; Corrosion resistance; Zirconium alloy; CRACKING SUSCEPTIBILITY; CORROSION PROTECTION; STAINLESS-STEELS; NI; WEAR; RESISTANCE; EVOLUTION; SUBSTRATE; DILUTION; FRACTION;

D O I：

10.1016/j.ijrmhm.2023.106486

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZrC/ZrB2 in-situ reinforced composite coatings were prepared by laser cladding on zirconium alloy. The effect of WC content on microstructure and properties of in-situ reactive ZrC/ZrB2 composite coatings were investigated experimentally. The dilution rate and the inhomogeneity of reinforcements distribution were increased by increasing WC content. The increment of WC content contributed to the refinement of the fishbone dendrites. The microhardness and corrosion resistance of the composite coatings decreased with increasing WC content. When the WC content was 15 wt%, the average microhardness of the coating was the highest as 529 HV0.5. Meanwhile, the corrosion potential was the highest and the corrosion current density was the lowest, which were 0.660 V and 1.627 x 10-8 A cm -2, respectively.

引用

页数：9

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