等离子喷涂ZrO2热障涂层的热冲击性能
Thermal Shock Resistance of Plasma-sprayed ZrO2 Thermal Barrier Coatings
摘 要
利用ANSYS软件对铝、镍基体等离子喷涂ZrO2热障涂层在热冲击过程中的应力分布进行了数值模拟,并比较了不同金属基体对涂层热冲击行为的影响.结果表明：热冲击过程中产生的径向热应力最终导致涂层中垂直裂纹的出现,镍基体涂层的热冲击性能优于铝基体,有限元计算结果与试验结果吻合良好.
有限元
热冲击
plasma spraying
finite element
thermal shock
Abstract
The thermal shock behavior of plasma-sprayed ZrO2 coatings was numerically simulated by ANSYAS software.The effect of different metal substrates on the thermal shock behavior of coatings are examined.The stress σr produced by thermal shock resulted in the vertical cracks in the end .The thermal resistance of the coating with Ni-substrate is better than that of the coating with Al-substrate.The finite element computation agree well with the result of experiment.
中图分类号 TG174.444
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收稿日期 2006/1/9
修改稿日期 2006/4/10
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备注张红松(1977-),男,河南睢县人,博士研究生.
引用该论文: ZHANG Hong-song,WANG Fu-chi,MA Zhuang,WANG Quan-sheng,XIAN Wen-feng,CHENG Zhi-fang. Thermal Shock Resistance of Plasma-sprayed ZrO2 Thermal Barrier Coatings[J]. Materials for mechancial engineering, 2007, 31(1): 86～88
张红松,王富耻,马壮,王全胜,冼文锋,成志芳. 等离子喷涂ZrO2热障涂层的热冲击性能[J]. 机械工程材料, 2007, 31(1): 86～88
被引情况:
【1】郑允宅,朱建峰,曹萍丽,李强, "等离子喷涂热障涂层中应力分布的有限元模拟",机械工程材料 39, 84-88(2015)
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参考文献
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【2】粟庆田.氧化锆陶瓷水口材料的微观结构与力学性能研究[J].材料科学与工艺,1998,6(3):48-51.
【3】Tekmen C,Ozdemir I,Celik E.Failure behavior of functionally gradient materials under cycling conditions[J].Surface and Coatings Technology,2003:174:1101-1105.
【4】Kawasaki A,Watanabe R.Thermal fracture behavior of metal/ceramic functionally graded material[J].Engineering Fracture Mechanics,2002,69:1713-1728.
【5】Nusair Khan A,Lu J.Behavior of air plasma sprayed thermal barrier coatings,subject to intense thermal cycling[J].Surface and Coatings Technology,2003,166:37-43.
【6】胡望宇,管恒荣,孙晓峰,等.ZrO2/Ni阶梯热障涂层的热冲击行为[J].金属学报,1998,34(10):1104-1114.
【7】贺鹏飞,李京剑,Yuan C,等.从微孔洞起始的热冲击裂纹的数值研究——Ⅰ：热应力分析[J].复合材料学报,2002,19(5):75-78.
【8】肖金生,刘杰,潘春旭,等.陶瓷/金属梯度热障涂层的热冲击性能研究[J].武汉理工大学学报,2002,24(9):11-14.
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