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温度场对电弧喷涂热应力的影响

官大庶, 方思妍, 周志丹, 陈富强, 陈蒙蒙

官大庶, 方思妍, 周志丹, 陈富强, 陈蒙蒙. 温度场对电弧喷涂热应力的影响[J]. 焊接学报, 2019, 40(8): 109-112. DOI: 10.12073/j.hjxb.2019400217
引用本文: 官大庶, 方思妍, 周志丹, 陈富强, 陈蒙蒙. 温度场对电弧喷涂热应力的影响[J]. 焊接学报, 2019, 40(8): 109-112. DOI: 10.12073/j.hjxb.2019400217
shu
GUAN Dashu, FANG Siyan, ZHOU Zhidan, CHEN Fuqiang, CHEN Mengmeng. Effect of temperature field on the thermal stress of arc spraying[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 109-112. DOI: 10.12073/j.hjxb.2019400217
Citation: GUAN Dashu, FANG Siyan, ZHOU Zhidan, CHEN Fuqiang, CHEN Mengmeng. Effect of temperature field on the thermal stress of arc spraying[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 109-112. DOI: 10.12073/j.hjxb.2019400217
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温度场对电弧喷涂热应力的影响

  • 1.

    中国矿业大学, 徐州 221008;广东水利电力职业技术学院, 广州 510610

  • 2.

    广东水利电力职业技术学院, 广州 510610

  • 3.

    中国矿业大学, 徐州 221008

  • 4.

    广东省水利水电科学研究院, 广州 510610

基金项目: 广东大学生科技创新培育专项资金项目（pdjh2019b0771）

Effect of temperature field on the thermal stress of arc spraying

  • 1.

    China University of Minding and Technology, Xuzhou 221008, China;Guangdong Polytechnic of Water Resources and Electric Engineering, Guangzhou 510610, China

  • 2.

    Guangdong Polytechnic of Water Resources and Electric Engineering, Guangzhou 510610, China

  • 3.

    China University of Minding and Technology, Xuzhou 221008, China

  • 4.

    Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510610, China

摘要

    摘要
  • 摘要: 基于热力学热传导原理和材料力学力和力矩的平衡原理，提出了考虑温度场的电弧快速成形涂层和基体热应力分析方法，能计算涂层成形后，由于自身温度降低以及向基体热传导产生温度场变化引起涂层和基体的热应力.借助广义热传导方程并赋予给定初始和边界条件，推导了基体厚度方向各位置温度分布函数，将推导的温度分布函数结合温度应变方程、力和力矩平衡方程推导了涂层和基体由于温度场变化产生的热应力理论计算方法.结果表明，热应力理论计算方法较好反映喷涂成形后涂层和基体间热应力分布规律，能较好控制涂层的质量，实现厚成形.
    Abstract: Basing on heat conduction principle of thermodynamics and the equilibrium principle of force and torque in mechanics of materials, one way of thermal stress analysis of an arc rapid forming coating and substrate considering temperature field was proposed to calculate the thermal stress of the coating and the substrate, which caused respectively by the decrease of temperature and the change of temperature field due to the heat conduction of substrate, resulting from the high temperature coating. Basing on generalized heat conduction equation assigned to both initial and boundary conditions, temperature distribution function at different positions in the direction of matrix thickness was derived. On the basis of the temperature distribution function, the temperature strain equation, the force and moment equation, the theoretical formula of thermal stress along with temperature field for coating and substrate was derived. The results showed that the thermal stress distribution between coating and matrix after spray forming can better reflected, also the quality of the coating to achieve thick coating can better controlled by this method.
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    • 参考文献(18)
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  • 收稿日期:  2018-01-17

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