Determination of Grinding Process Effect on the Through Thickness Residual Stress in HVOF-deposited WC– 10Co– 4Cr coating

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ZOEI MAEDEH SADAT; SADEGHI MOHAMMAD HOSEIN; SALEHI MEHDI

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Journal: IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING Year:2019 | Volume:- | Issue:39 Page(s): 69-77

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Title

Determination of Grinding Process Effect on the Through Thickness Residual Stress in HVOF-deposited WC– 10Co– 4Cr coating

Author(s)

ZOEI MAEDEH SADAT | SADEGHI MOHAMMAD HOSEIN | SALEHI MEHDI | Issue Writer Certificate

Keywords

HVOFQ2

WC-10Co-4Cr coatingQ1

GrindingQ1

Residual stressQ2

Finite element methodQ1

Abstract

Application of WC-10Co-4Cr coating deposited by High Velocity Oxygen Fuel (HVOF) has been significantly developed in key parts of various industries, nowadays. These coatings are ground to achieve the desired surface roughness. In this study, the Residual stress of as-sprayed and ground coating was determined by the X-ray diffraction (XRD) technique using sin2 method and Finite element method(FEM). In the experimental evaluation, the chemical layer removal process was used to measure the through thickness Residual stress. In the finite element analysis of the Grinding process, the temperature distribution of workpiece is initially obtained by applying the thermal flux from the Grinding process. Then the workpiece cools until it reaches the ambient temperature. The temperature history of thermal analysis is applied to the stress analysis and the final distribution of Residual stress is determined by applying Grinding forces and Residual stress caused by the HVOF process. The results showed that there was a good agreement between the experimental and simulation results and after the Grinding process, the value of compressive Residual stress of coating surface increases was increased. Also, in the experimental and simulation investigation, the increase in compressive Residual stress compared with the pre-Grinding was up to 100 μ m and 120 μ m, respectively. There is no increase in compressive Residual stress in the higher depth of coating and also in the interface of the coating and substrate.

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APA: Copy

ZOEI, MAEDEH SADAT, SADEGHI, MOHAMMAD HOSEIN, & SALEHI, MEHDI. (2019). Determination of Grinding Process Effect on the Through Thickness Residual Stress in HVOF-deposited WC– 10Co– 4Cr coating. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, -(39 ), 69-77. SID. https://sid.ir/paper/389020/en

Vancouver: Copy

ZOEI MAEDEH SADAT, SADEGHI MOHAMMAD HOSEIN, SALEHI MEHDI. Determination of Grinding Process Effect on the Through Thickness Residual Stress in HVOF-deposited WC– 10Co– 4Cr coating. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING[Internet]. 2019;-(39 ):69-77. Available from: https://sid.ir/paper/389020/en

IEEE: Copy

MAEDEH SADAT ZOEI, MOHAMMAD HOSEIN SADEGHI, and MEHDI SALEHI, “Determination of Grinding Process Effect on the Through Thickness Residual Stress in HVOF-deposited WC– 10Co– 4Cr coating,” IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, vol. -, no. 39 , pp. 69–77, 2019, [Online]. Available: https://sid.ir/paper/389020/en

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