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High interstitial austenitic stainless steels have been shown to exhibit superior mechanical properties, which include a unique combination of high strength and high toughness, due to the positive effects of the combination of carbon and nitrogen in solid solution. By the addition of molybdenum, a significant improvement of their localized corrosion resistance has been achieved. Further strengthening...
High interstitial CrMnCN austenitic stainless steels combine superior mechanical properties with high resistance to corrosion. The first is caused by the strengthening effect of C and N and the low stacking fault energy leading to intense cold work hardening and e.g. increased resistance to fatigue, which implies a high resistance to cavitation erosion. Corrosion resistance is provided by the elements...
The excellent resistance of high interstitial CrMnCN austenitic stainless steels to cavitation erosion was ascribed to strengthening by C+N and the low stacking fault energy causing improved resistance to fatigue and superior mechanical properties. Previous investigations revealed correlation of crystallographic orientation and cavitation erosion damage. In this study, different CrMnCN steels were...
Carbide-rich cold work tool steels produced by powder metallurgy are designed for applications that are exposed to heavy abrasive wear. Alloying with higher amounts of chromium and molybdenum additionally leads to corrosion resistance. This makes them excellent candidates for use in fluid flow systems with a high abrasive load, e.g. due to liquids containing sand particles. In this study, two different...
It is known that the cavitation resistance of austenitic stainless steels can be increased by the addition of nitrogen. This is attributed to the strengthening effect of N and the lower stacking fault energy (SFE) leading to an increased resistance to fatigue. A new development utilizes the joint addition of carbon and nitrogen. This results in even better mechanical properties, combining a tensile...
High mechanical loads and abrasive wear are boundary conditions for many tooling materials used in modern economy. One of the standard materials used in high abrasive environments is tool steel, or more specifically cold work tool steel. Wear resistance can be increased by adding hard phases like titanium carbides (TiC) to obtain a particle-reinforced metal–matrix composite (MMC) that can be produced...
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