The widespread application of aluminum silicon coatings in hot-stamping steel can be attributed to their exceptional heat resistance and oxidation resilience.However,alterations in the diffusion behavior of aluminum s...The widespread application of aluminum silicon coatings in hot-stamping steel can be attributed to their exceptional heat resistance and oxidation resilience.However,alterations in the diffusion behavior of aluminum silicon coatings during the heating process,such as coating corrosion and welding,considerably affect the ultimate performance of components post hot stamping.This study scrutinized the distinctive behaviors exhibited by two typical coatings,namely 30/30 and 75/75 coatings,throughout the heat treatment process and their consequential effects on welding and other inherent properties of typical components.Our investigation unveiled the heightened susceptibility of the 30/30 coating to the development of pinhole leakage defects on the surface compared with the 75/75 coating.Moreover,the diffusion rate of the 30/30 coating surpassed that of the 75/75 coating.This discrepancy holds significance as it influences welding processes,coating corrosion resistance,and attainable heat treatment windows.展开更多
基金supported by Research Institute(R&D Center)of Baosteel.The flat model test received support from Shanghai University and Baosteel High-tech Parts Company.
文摘The widespread application of aluminum silicon coatings in hot-stamping steel can be attributed to their exceptional heat resistance and oxidation resilience.However,alterations in the diffusion behavior of aluminum silicon coatings during the heating process,such as coating corrosion and welding,considerably affect the ultimate performance of components post hot stamping.This study scrutinized the distinctive behaviors exhibited by two typical coatings,namely 30/30 and 75/75 coatings,throughout the heat treatment process and their consequential effects on welding and other inherent properties of typical components.Our investigation unveiled the heightened susceptibility of the 30/30 coating to the development of pinhole leakage defects on the surface compared with the 75/75 coating.Moreover,the diffusion rate of the 30/30 coating surpassed that of the 75/75 coating.This discrepancy holds significance as it influences welding processes,coating corrosion resistance,and attainable heat treatment windows.
