Effect of Crystallization Temperature on the Microstructures and Mechanical Properties of Enamel Substrate RT330

The experimental crystallization simulates the manufacturing process of the heat sink in a heat exchanger used in nuclear power stations. The effect of the temperature of crystallization on the microstructures and mechanical properties of enamel substrate RT330 was investigated using an optical microscope, scanning electron microscope, transmission electron microscope and others. The experiment demonstrates that second‐phase particles generated at the bottom of dimples enhance the RT330 mechanical properties. Due to the interaction between the precipitation and the solid solution, the density of precipitations (TiN and TiC) reaches the maximum when crystallization treatment is at 850 °C. This study investigates the effect of crystallization temperature on the microstructures and mechanical properties of enamel substrate RT330 and explores methodologies to obtain a good mechanical property. Precipitation strengthening exerts a substantial impact on the strengthening mechanism.