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CHENG Jiangbo, LIANG Xiubing, CHEN Yongxiong, LIU Yan, XU Binshi, WU Yixiong. Residual stress in electric arc sprayed coatings for remanufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (6): 17-20.
Citation: CHENG Jiangbo, LIANG Xiubing, CHEN Yongxiong, LIU Yan, XU Binshi, WU Yixiong. Residual stress in electric arc sprayed coatings for remanufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (6): 17-20.
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Residual stress in electric arc sprayed coatings for remanufacturing

  • 1.

    Schools of Material Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China;National Key Laboratory for Remanufacturing, the Academy of Armored Forces Engineering, Beijing 100072, China

  • 2.

    National Key Laboratory for Remanufacturing, the Academy of Armored Forces Engineering, Beijing 100072, China

  • 3.

    Schools of Material Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China

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  • Received Date: October 21, 2007
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    • Abstract
  • The residual stresses in different thickness and different annealing temperatures of electric arc sprayed 7Cr13 coatings were investigated.The microstructure, elastic modulus and residual stress of the coatings were characterized by SEM, XRD, nano-indentation tester and XRD residual stress tester.The results show that the residual stress in the coating is increasing with increasing of the coating thickness.Annealing treatment can release the residual tensile stress of the coatings.When the annealing temperature is between 200-300℃, tensile stress can change from tenstle stress to compress stress in the coatings.The elastic modulus of the coatings is increasing with increasing of annealing temperature.Based on the results mentioned above, some advice and methods to spray forming thickness coatings can be given.
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