| 两种钴碳化钨涂层的组织性能研究 |
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| 引用本文： | 侯玉柏,韩兆新,于月光.两种钴碳化钨涂层的组织性能研究[J].热喷涂技术,2018,10(2):22-25. |
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| 作者姓名： | 侯玉柏 韩兆新 于月光 |
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| 作者单位： | 北京矿冶科技集团有限公司;北京市工业部件表面强化与修复工程技术研究中心;特种涂层材料与技术北京市重点实验室 |
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| 摘 要： | 选用核壳包覆WC-Co粉末与团聚烧结钴碳化钨粉末进行物理性能对比,采用等离子喷涂系统制备涂层。通过SEM、显微硬度和化学成分等分析手段,检测两种涂层的性能。结果表明核壳包覆WC-Co粉末有效减少喷涂过程中碳的烧损,同比减少失碳量21.8%,涂层相对致密均匀,孔隙率小于5%;粉末沉积率高于团聚烧结WC-Co,达到52.2%,显微硬度873.6HV0.2,明显高于团聚烧结WC-Co 637.3HV_(0.2)。
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Study on the Microstructure and Properties of Two Kinds ofCobalt Tungsten Carbide Coatings |
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| HOU Yu-bai,HAN Zhao-xin and YU Yue-guang.Study on the Microstructure and Properties of Two Kinds ofCobalt Tungsten Carbide Coatings[J].Thermal Spray Technology,2018,10(2):22-25. |
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| Authors: | HOU Yu-bai HAN Zhao-xin and YU Yue-guang |
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| Affiliation: | BGRIMM Technology Group,Beijing Engineering Research Center on Surface Strengthen and
Restoration of Industrial Parts, Beijing Key Laboratory of Special Coating Materials and Technology and BGRIMM technology group, Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts, Key Laboratory of Beijing for Special Coating Material and Technology |
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| Abstract: | The plasma coating effects were compared using cobalt coated spherical tungsten carbideand aggregation sintering cobalt-tungsten carbide composite. Scanning electron microscope, microhardness, and chemical component analysis were employed to characterize the coating properties. The results show that the
burnt loss decreases 21.8% when the cobalt coated tungsten carbide using as precursor. The coat is uniform and
compact with porosity less than 5%. Powder deposition rate is as high as 52.2%, which is much higher than that of aggregation sintering cobalt-tungsten carbide composite. Microhardness is 873.6HV0.2, which is higher than that ofaggregation sintering cobalt-tungsten carbide composite,637.3HV0.2. |
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