Finite Element Analysis on Cooling Process of SHS Reactive Flame Spray Surface Coating
Numerical simulation the temperature and stress of the SHS reactive flame spray coatings which were cooled in air and sand from a high temperature to room temperature (25°C). The distribution of temperature and stress of the coatings were discussed. The results show that the cooling velocity of air-cooled product is fast than that of sand-cooled product; temperature distribution of sand-cooled product is more uniform than that of air-cooled product in the process of cooling; the stress state of air-cooled coating is tensile stress state, while the stress state of sand-cooled coating is compressive stress state; the stress distribution and strain situation are close relative to temperature distribution, heat emission speed and geometric shape of products in process of cooling; the smooth geometric shape of the product, uniform temperature distribution and heat emission speed are beneficial to improve the state of residual thermal stress; the stress and strain state of sand-cooled coating is better than that of air-cooled coating.
Wei Pan and Jianghong Gong
W. B. Hu et al., "Finite Element Analysis on Cooling Process of SHS Reactive Flame Spray Surface Coating", Advanced Materials Research, Vols. 105-106, pp. 390-393, 2010