不同Y2O3含量对激光熔覆Ni 基WC 陶瓷复合涂层组织的影响

金丽君, 刘振振

doi:10.16577/j.issn.1001-1560.2025.0084

材料保护 >

2025 , Vol. 58 >Issue 5: 123 - 128

DOI: https://doi.org/10.16577/j.issn.1001-1560.2025.0084

激光表面改性技术专栏

不同Y₂O₃含量对激光熔覆Ni 基WC 陶瓷复合涂层组织的影响

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青岛征和工业股份有限公司

金丽君(1975－)，正高级工程师，主要研究方向为链传动技术及其新材料研究与应用，E-mail:CHOHOJLJ＠163.com；

刘振振(1991－)，工程师，主要研究方向为链传动技术及金属材料表面防护技术，E-mail:Liu8658＠hotmail.com

收稿日期: 2024-10-22

修回日期: 2024-11-09

录用日期: 2024-11-11

网络出版日期: 2025-06-10

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Effects of Different Y₂O₃ Contents on the Microstructure of Ni-Based WC Ceramic Composite Coating by Laser Cladding

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(Qingdao Choho Industrial Co.， Ltd.， Qingdao 266700， China)

JIN Lijun(1975－)， Senior Engineer， Research Focus: Chain Drive Technology and Its New Material Research and Application， E-mail: CHOHOJLJ＠163.com；

LIU Zhenzhen(1991－)， Engineer， Research Focus: Chain Drive Technology and Surface Protection Technology of Metal Materials， E-mail: Liu8658＠hotmail.com

Received date: 2024-10-22

Revised date: 2024-11-09

Accepted date: 2024-11-11

Online published: 2025-06-10

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摘要

为研究不同Y2O3含量对激光熔覆Ni 基WC 陶瓷复合涂层组织的影响，利用900W YAG 固体激光器在9SiCr 基体表面熔覆Ni 基WC 陶瓷复合材料涂层，利用扫描电镜(SEM)、X 射线衍射仪(XRD)研究了Y2O3对涂层组织的影响及Y2O3的作用原理。结果表明:添加Y2O3会引起涂层相组成的相对比例发生变化。 Y 元素主要集中于晶界边缘处，加入适量Y2O3可以有效地减少熔覆过程中涂层的缺陷，提高涂层的致密性，使涂层组织更加均匀，有效细化晶粒。当Y2O3添加量为1.5%时，所制备涂层组织的均匀性最高。

关键词： 激光熔覆; Y₂O₃; Ni 基WC; 组织

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金丽君, 刘振振 . 不同Y₂O₃含量对激光熔覆Ni 基WC 陶瓷复合涂层组织的影响[J]. 材料保护, 2025 , 58(5) : 123 -128 . DOI: 10.16577/j.issn.1001-1560.2025.0084

Abstract

To study the effect of different rare earth Y2O3 contents on the microstructure of laser-cladded Ni-based WC ceramic composite coatings， the Ni-based WC ceramic composite coatings were melted on the surface of 9SiCr using 900W YAG solid laser.The effects of Y2O3 on the structure of the composite coatings were systematically investigated by means of scanning electron microscope (SEM) and X-ray diffraction(XRD).Results showed that the addition of Y2O3 could cause alterations in the relative phase composition ratios within the coating，and Y elements were mainly concentrated at the grain boundary edges.Adding a suitable amount of Y2O3 effectively reduced the coating defects during the cladding process， improved coating densification， promoted more homogeneous microstructural distribution， and significantly refined grain size.When the amount of Y2O3 was 1.5%， the microstructure uniformity of the as-prepared coating was the highest.

Key words： laser cladding; Y₂O₃; Ni-based WC; microstructure

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