| 钼含量对铁基激光熔覆层组织和性能的影响 |
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| 引用本文： | 皮自强,杜开平,郑兆然,陈星. 钼含量对铁基激光熔覆层组织和性能的影响[J]. 热喷涂技术, 2021, 13(1): 85-90 |
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| 作者姓名： | 皮自强 杜开平 郑兆然 陈星 |
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| 作者单位： | 矿冶科技集团有限公司,北京 100160;特种涂层材料与技术北京市重点实验室,北京 102206;北京市工业部件表面强化与修复工程技术研究中心,北京 102206 |
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| 摘 要： | 采用激光熔覆在45#钢基体上制备了不同Mo含量的FeCrNi熔覆层,探讨Mo元素含量对熔覆层组织和性能的影响.试验结果表明,五种熔覆层均主要由马氏体和M7C3碳化物组成,当Mo添加量大于等于1wt.％时,熔覆层中出现了少量Mo2C和Laves相.Mo元素能够改善熔覆层中的碳化物分布和形态,使鱼骨状共晶碳化物增多,提高熔...
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| 关 键 词： | 激光熔覆 铁基合金 显微组织 耐磨性能 |
Effect of Mo Content on the Structure and Properties of Fe-Based LaserCladding Layers |
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| Pi Ziqiang,Du Kaiping,Zheng Zhaoran,Chen Xing. Effect of Mo Content on the Structure and Properties of Fe-Based LaserCladding Layers[J]. Thermal Spray Technology, 2021, 13(1): 85-90 |
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| Authors: | Pi Ziqiang Du Kaiping Zheng Zhaoran Chen Xing |
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| Affiliation: | BGRIMM Technology Group, Beijing Key Laboratory of Special Coating Materials and Technology, Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts |
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| Abstract: | The FeCrNi layers with different Mo content was fabricated on the 45# steel substrate with lasercladding, and the influence of Mo content on the structure and properties of the cladding layer was discussed.The results showed that the five cladding layers are mainly composed of martensite and M7C3 carbides. When theamount of Mo is greater than or equal to 1wt.%, a small amount of Mo2C and Laves phases appear in the claddinglayer. Mo can optimize the distribution and morphology of carbides in the cladding layer, increase the fishboneeutectic carbides, and improve the hardness and wear resistance of the cladding layer. However, When the Mocontent is too high, the carbides will aggregate and grow into a coarse network, leading to the reduction of thewear resistance of the cladding layer. |
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| Keywords: | Laser cladding Fe- based alloy Microstructure Wear resistance performance |
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