Mechanical and Magnetic Properties of Chromium–Nickel Maraging Stainless Steel 04Kh13N8MTYu–VI

Abstract

Currently, the development of new high performance magnetoelectric engines and generators that require high strength materials with specific magnetic characteristics is a relevant problem. The possibility of using maraging steels—in particular, the steel developed under brand 04Kh13N8MTYu–VI by Lasmet Co.—as rotor poles for high speed electric machines with permanent magnets due to the favorable combination of their mechanical properties, improved corrosion resistance, and impact toughness has been considered. The mechanical and magnetic properties of steel 04Kh13N8MTYu–VI have been investigated. Despite the fact that the maximum value of magnetic permeability in steel 04Kh13N8MTYu–VI is substantially lower than that in steels 3 and 30KhGSA, it is shown that the difference in the magnitude of the electromagnetic torque between engines in which different steels 30KhGSA and 04Kh13N8MTYu–VI are used is less than 0.2%. Considering the higher strength characteristics of steel 04Kh13N8MTYu–VI compared to 30KhGSA, there is a potential opportunity to increase the rotor rotation frequency by 25% with the use of a rotor made of steel 04Kh13N8MTYu–VI.