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首页> 外文会议>International conference on physical and numerical simulation of material processing;ICPNS2010 >Wear Resistance of Fe-Cr-C-TiFe Fe-based Composite Coating Prepared by Precursor Carbonization-composition Process and Plasma Cladding
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Wear Resistance of Fe-Cr-C-TiFe Fe-based Composite Coating Prepared by Precursor Carbonization-composition Process and Plasma Cladding

机译：前驱体碳化复合工艺和等离子熔覆法制备的Fe-Cr-C-TiFe铁基复合涂层的耐磨性

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The sucrose was used as a carbonaceous precursor to fabricate composite alloy powder of Fe-Cr-C-TiFe by the precursor carbonization-composition process using the powder matirial of chromium, iron, tungsten, nickel and ferrotitanium. And the powder of Fe-Cr-C-TiFe was used to form a high-chromium iron-base composite coating on substrate of Q235 steel by plasma cladding process. The microstructure and hardness of the coating were investigated by scanning electron microscope (SEM), energy disperse spectroscopy (EDS), microhardness tester. Wear resistance of the coating was tested on wear tester at room temperature and high temperature 600°C compared with the base material Q235 steel and bearing steel. Results show that the coating consists of TiC, (Cr,Fe)_7C_3 and austenite and the hardness of the coating is 3.4 times as high as the base body Q235 steel. The wear resistance of the coating at room temperature is 11-15 times as high as the base body Q235 steel. The wear resistance of the coating at high temperature 600°C is 2.45 times as high as Q235 steel and is 1.5 times as high as bearing steel. The composite coating has excellent wear resistance because the reinforce phase TiC and (Cr,Fe)_7C_3 in the coating have high hardness and good wear resistance. They can play key roles in process of friction and wear.
机译：蔗糖用作碳质前驱体，通过使用铬，铁，钨，镍和铁钛合金粉末的前驱体碳化组成工艺来制备Fe-Cr-C-TiFe复合合金粉末。用Fe-Cr-C-TiFe粉末通过等离子熔覆工艺在Q235钢基体上形成高铬铁基复合涂层。用扫描电子显微镜（SEM），能谱仪（EDS），显微硬度计对涂层的显微组织和硬度进行了研究。与基体材料Q235钢和轴承钢相比，该涂层的耐磨性在室温和600°C高温下的磨损测试仪上进行了测试。结果表明，该涂层由TiC，（Cr，Fe）_7C_3和奥氏体组成，涂层的硬度是Q235钢的3.4倍。室温下涂层的耐磨性是基体Q235钢的11-15倍。涂层在600°C高温下的耐磨性是Q235钢的2.45倍，是轴承钢的1.5倍。该复合涂层具有优异的耐磨性，因为涂层中的增强相TiC和（Cr，Fe）_7C_3具有较高的硬度和良好的耐磨性。它们可以在摩擦和磨损过程中发挥关键作用。

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