The effects of non-metallic inclusions on properties relevant to the performance of steel in structural and mechanical applications

摘要: Abstract Non-metallic inclusions (NMIs) occur typically in low or very volume fractions (from 10−2 a high oxygen weld deposit to 10−5 clean bearing steels) but play an important role many properties of steel. NMIs decisive processes involving ductile fracture, fatigue and corrosion, for instance. These are some the more relevant performance steel structural mechanical applications. Furthermore, may influence nucleation during phase transformations In this work, relation these is reviewed, highlighting progress difficulties each area. Perhaps because their fraction, sometimes overlooked basic physical metallurgy education study left realm those interested steelmaking. last decades dramatic evolution understanding relationship properties, however, has led significant improvements products: outstanding increase life automotive springs bearings one such examples. It concluded that improvement cases requires “inclusion engineering” can only be achieved through close collaboration between metallurgy, process Those who realized have made development recent as highlighted short review.