杨勇,赵靖宇,李静,杨景凤,赵彬,孙玉福.氩气保护下碳化钨对镍基合金熔覆层组织及耐磨性的影响[J].表面技术,2015,44(2):55-59,82.
YANG Yong,ZHAO Jing-yu,LI Jing,YANG Jing-feng,ZHAO Bin,SUN Yu-fu.Effect of Tungsten Carbide on the Microstructure and Wear Resistance of the Nickel-based Alloy Cladding Layer under the Protection of Argon[J].Surface Technology,2015,44(2):55-59,82 |
| 氩气保护下碳化钨对镍基合金熔覆层组织及耐磨性的影响 |
| Effect of Tungsten Carbide on the Microstructure and Wear Resistance of the Nickel-based Alloy Cladding Layer under the Protection of Argon |
| 投稿时间：2014-08-30 修订日期：2015-02-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2015.02.011 |
| 中文关键词: 氩气保护 碳化钨 熔覆层 耐磨性 |
| 英文关键词:argon gas protection tungsten carbide cladding layer wear resistance |
| 基金项目: |
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| Author | Institution |
| YANG Yong | 1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China;2. Xuchang Tobacco Machinery Company Limited, Xuchang 461000, China |
| ZHAO Jing-yu | School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China |
| LI Jing | School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China |
| YANG Jing-feng | School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China |
| ZHAO Bin | School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China |
| SUN Yu-fu | School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China |
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| 中文摘要: |
| 目的 改善 Q235 钢板的耐磨性,以取代 65Mn 在振动筛筛板中的应用。 方法 采用电阻丝加热非真空熔覆技术,在氩气保护条件下于 Q235 钢表面制备碳化钨/ 镍基合金复合熔覆层。 通过 SEM 和XRD 观察分析熔覆层与基体的结合方式、碳化钨分布、熔覆层组织及相组成,通过硬度测试及磨损试验, 分析碳化钨对熔覆层耐磨性的影响。 结果 熔覆层与钢基体达到冶金结合。 熔覆层主要由奥氏体、碳化钨、碳化物及硼碳复合化合物等相组成,碳化钨弥散分布其中。 当碳化钨用量为熔覆粉末总质量的 35%时,熔覆层硬度为 47. 3HRC,磨损率为 0. 08 mg/ m,约是钢基体耐磨性的 5 倍,65Mn 耐磨性的 4 倍。 结论采用氩气保护制备的碳化钨熔覆层与基体结合良好,提高了钢基体的耐磨性。 |
| 英文摘要: |
| Objective To improve the wear resistance of Q235 steel sheet, and to replace the application of 65Mn in the sieve plate of shaker screen. Methods Tungsten carbide/ Nickle-based alloy composite cladding layer was prepared on the surface of Q235 steel plate under the protection of argon gas by resistance wire heating non-vacuum cladding technique. SEM and XRD were used to observe and analyze the combination mode of the cladding layer and the substrate, tungsten carbide distribution, the organization of cladding layer and the phase composition, meanwhile, the Rockwell hardness tester and wear tester were used to test the rock hardness and the wear rate of cladding layer, and analyze the effect of tungsten carbide on the wear resistance of the cladding layer. Results The steel substrate and the cladding layer achieved metallurgical bonding, and the microstructure of the cladding layer mainly consisted of binding phase, tungsten carbide, carbide and boron carbon composite compounds, where the distribution of tungsten carbide was well-proportioned in the cladding layer. With 35% WC content in the cladding layer alloy powder, its rock hardness reached 47. 3HRC and the wear rate was 0. 08 mg / m, which was 5 folds higher than the wear resistance of the steel substrate and 4 folds higher than that of 65Mn. Conclusion The tungsten carbide composite cladding layer prepared with argon gas protection was well bonded with the steel substrate and improved the wear resistance of the steel substrate. |
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