Abstract The impact of plasma nitriding on the microstructure and hardness a recently developed 4 wt.-% medium manganese steel are presented. In contrast to standard quench tempering steels, investigated material achieves its martensitic by air-cooling from forging heat, which enables reduction carbon footprint forged components. influence this grade has not been so far, but fundamental differe...

Maraging steels are among the highest strength commercially available. Despite being relatively rare and expensive, they may present a yield around 3 GPa indispensable for various applications. In paper, several aspects will be reviewed related to maraging including brief history of its development, microstructure acting hardening mechanisms, loss toughness with tensile increase, resistance oxi...

Boron nitride nanotubes (BNNTs) have many fascinating properties and a wide range of applications. An improved ball milling method has been developed for high-yield BNNT synthesis, in which metal nitrate, such as Fe(NO3)3, and amorphous boron powder are milled together to prepare a more effective precursor. The heating of the precursor in nitrogen-containing gas produces a high density of BNNTs...

The pure elements Ti, Zr, Cr, Nb were selected to produce an TiCrZrNb alloy target and deposited thin films thereof by a reactive high vacuum DC sputtering process. Nitrogen was used as the reactive gas to deposit the nitride thin films. The effect of nitriding on the properties of the TiCrZrNbNx film was tested by changing the nitrogen ratio of the atmosphere. All of the as-deposited TiCrZrNbN...