王新帅,静丰羽,张喜冬,赵靖宇,孙玉福.等离子熔覆-注射B4C铁基熔覆层组织耐磨性研究[J].表面技术,2014,43(5):42-46.
WANG Xin-shuai,JING Feng-yu,ZHANG Xi-dong,ZHAO Jing-yu,SUN Yu-fu.Study on Wear Resistance of Fe-based Clad Coating Prepared by Plasma Cladding-B4C Injection[J].Surface Technology,2014,43(5):42-46 |
| 等离子熔覆-注射B4C铁基熔覆层组织耐磨性研究 |
| Study on Wear Resistance of Fe-based Clad Coating Prepared by Plasma Cladding-B4C Injection |
| 投稿时间：2014-05-08 修订日期：2014-08-18 |
| DOI： |
| 中文关键词: 等离 子熔覆-注射 B4C 铁基熔覆层 耐磨性 |
| 英文关键词:plasma cladding-injection B4C Fe-based cladding layer wear resistance |
| 基金项目: |
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| Author | Institution |
| WANG Xin-shuai | Material Science and Engineering College, Zhengzhou University, Zhengzhou 450002, China |
| JING Feng-yu | Material Science and Engineering College, Zhengzhou University, Zhengzhou 450002, China |
| ZHANG Xi-dong | Material Science and Engineering College, Zhengzhou University, Zhengzhou 450002, China |
| ZHAO Jing-yu | Material Science and Engineering College, Zhengzhou University, Zhengzhou 450002, China |
| SUN Yu-fu | Material Science and Engineering College, Zhengzhou University, Zhengzhou 450002, China |
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| 中文摘要: |
| 目 的 采用 等离 子熔覆-注射工艺 在 Q235 基体上制 备 B4C 铁基熔覆层并研究其耐磨性。 方法通过 OM, SEM, EDS 等分析熔覆层及界面的组织特征, 并进行耐磨性测试。 结果 当 B4C 质量占 主体熔覆材料质量的 18% 时, 注射熔覆层表面比较平整, 无裂纹。 注射熔覆层组织致密, 界面呈现平直的 亮白色过渡层, 稀释率小, 与 基体形成了 良好的 冶 金结合。 B4C 陶瓷颗粒表面溶解会形成 Fe, Cr 等元素的 硼化物。 等离 子熔覆-注射 B4C 熔覆层的耐磨性是 42CrMo 的 22 倍, 是 16Mn 钢的 41 倍。 结论 等离 子熔覆-注射 B4C 工艺能够增强 B4C 与 熔覆层之间 的结合力, 提高熔覆层的硬度和耐磨性。 |
| 英文摘要: |
| Objective Fe-based B4C composite clad coating was prepared on the surface of Q235 steel by plasma cladding-injection process, and its wear resistance was studied. Methods The microstructure and dry-sliding wear behavior of the clad layer were investigated by means of optical microscopy( OM) , scanning electron microscopy( SEM) , energy dispersive spectrometry ( EDS) and ball-on-disc wear experiments. Results The experimental results showed that when the B4C accounted for 18% of the quality of the main body cladding material, the surface of the clad coating was smooth, without cracks. In addition, the plasma cladding-injecting coating had a compact texture, a low dilution rate and a good metallurgical bonding with carbon steel substrate, and there was a bright white transition layer in the interface. During the dissolving of the surface of the B4C ceramic particles, borides of Fe and Cr were formed. The wear resistance test showed that the plasma cladding-injecting coating had high wear resistance, which was twenty-two times that of the 42CrMo steel, and forty-one times that of the 16Mn steel. Conclusion The plasma cladding-injection B4C process was beneficial to enhance the bonding force between the B4C and the cladding layer, and improve the hardness and wear resistance of the plasma cladding-injecting coating. |
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