Compressor wheel arrangement and method for the production of a compressor wheel arrangement

A compressor wheel arrangement for an electrically powered turbocharger, which can be connected to a rotor shaft of the turbocharger, the compressor wheel arrangement comprising:

• a compressor wheel made of a first metallic material and formed of one part, the compressor wheel defining a recess having a step;
• a shaft made of a second metallic material, the shaft including:
• a first shaft section including an end of the shaft engaged with the recess of the compressor wheel and abutting the step to form a shaft-hub connection to connect the shaft to the compressor wheel, and
• a second shaft section that extends behind the compressor wheel between a casing and the first shaft section;
• and
• at least one permanent magnet non-rotatably arranged on the second shaft section in a ring-shaped area around the second shaft section, wherein the at least one permanent magnet is thermally coupled with the compressor wheel.