In the present work, the influence of surface roughness on oxidation kinetics of AISI 316Ti stainless steel and its consequences in term of oxidation resistance were investigated. Namely, the effect of surface roughness on oxidation resistance was evaluated during different types of cyclic oxidation tests at 900 and 1000 °C. The obtained results revealed that alloy possessing higher surface roughness showed longer lifetime compared to that with lower surface roughness. It was also found that more severe cyclic conditions suppressed the positive effect of surface roughness on sample’s lifetime. The better oxidation resistance of rougher alloy was correlated with suppressed formation of Fe-rich nodules on ground surfaces and explained by the combined effect of introduced defects in the near-surface region and possible increase in residual stresses caused by mechanical surface preparation.

在本工作中，研究了表面粗糙度对AISI 316Ti不锈钢氧化动力学的影响及其在抗氧化性方面的后果。即，在900和1000℃的不同类型的循环氧化试验期间，评价了表面粗糙度对抗氧化性的影响。所得结果表明，与具有较低表面粗糙度的合金相比，具有较高表面粗糙度的合金具有更长的寿命。还发现更严重的循环条件抑制了表面粗糙度对样品寿命的积极影响。