D. Sajedipour

Publications

1 Impact Temperature in Splat and Splat-Substrate Interface in HVOF Thermal Spraying

Authors: M. Jalali Azizpour, H. Mohammadi majd, D. Sajedipour, M.R. Tahmasbi Birgani, M.Rabiae

Abstract:

An explicit axisymmetrical FE methodology is developed here to study the particle temperature arising in WC-Co particle on an AISI 1045 steel substrate. Parameters of constitutive Johnson-cook model were used for simulation. The results show that particle velocity and kinetic energy have important role in temperature arising of particles.

Keywords: FEM, HVOF, Interfacial Temperature, Splat

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Abstracts

1 Simulation the Effect of Temperature on the Residual Stress in Shot Peening Process Using FEM Method

Authors: M. Jalali Azizpour, H. Mohammadi majd, D. Sajedipour, A.R. Aboudi Asl, V. Tawaf

Abstract:

Sandblasting is a generally used surface treatment technique to improve the residual stress and adhesion of coatings to substrate. The goal of this work is to study the effect of temperature on the residual stress in sandblasting AISI1045 substrate. For this purpose a two dimensional axisymmetric model of shot impacting on an AISI 1045 disc was generated using ABAQUS version 6.10. The result shows for sandblasting temperature there is an optimum condition. In addition there are other effective factors that influence the fatigue life of parts.

Keywords: Modeling, temperature, Residual Stress, shot peen

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