氩弧熔敷Ti-Si-C系陶瓷涂层中物相的热力学预测

闫文青; 张建强; 刘升

doi:10.12073/j.hjxb.20170524

氩弧熔敷Ti-Si-C系陶瓷涂层中物相的热力学预测

1.
武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室, 武汉 430081
2.
武汉大学动力与机械学院, 武汉 430072

基金项目: 湖北省教育厅青年基金资助项目（010403）

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- 收稿日期: 2015-04-26

Thermodynamic prediction for phases of ceramic coatings in Ti-Si-C system by argon arc depositing

1.
Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China
2.
School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China

摘要

摘要: 利用热力学原理推导出反应焓和反应吉布斯（Gibbs）自由能与温度的关系式.根据Ti-Si-C系相图，对用钨极氩弧（TIG）热在钛合金表面熔敷形成涂层过程中可能的12个化学反应进行热力学分析.热力学计算得出，Ti元素能与SiC，Si及C元素反应生成TiC，Ti₃SiC₂相和Ti₅Si₃，TiSi₂金属间化合物.理论分析结果表明，在TIG熔敷条件下，通过改变不同的原材料初始组成，可以采用热力学分析方法预测熔覆层的物相组成.试验结果表明，预测结果与试验结果符合得很好.
- 钨极氩弧熔敷 /
- 陶瓷熔覆层 /
- 物相 /
- 热力学预测
Abstract: Based on the thermodynamic principle, the relation between reaction enthalpy, Gibbs energy and temperature were deduced. Using phase graphs of Ti-Si-C, 12 reactions occurring possibly during TIG arc deposition on the titanium alloys were analyzed by thermodynamics. The thermodynamic calculation results showed that titanium can react with SiC, Si and C to forming ceramic phases of TiC and Ti₃SiC₂ and intermetallic compound of Ti₅Si₃ and TiSi₂. The theoretical analysis results showed that the phases of deposition layers can be predicted using thermodynamic analysis by changing the compositions of different raw materials on the TIG arc conditions. The experiment results showed that the prediction results were corresponding well with experiments results.
- tungsten argon arc deposition /
- ceramic deposition layers /
- phase /
- thermodynamic prediction

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参考文献(10)

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文章访问数: 447
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PDF下载量: 410
被引次数: 5

氩弧熔敷Ti-Si-C系陶瓷涂层中物相的热力学预测

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出版历程

Thermodynamic prediction for phases of ceramic coatings in Ti-Si-C system by argon arc depositing

期刊类型引用(4)

其他类型引用(1)

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出版历程

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