Material Selection of Turbine Wheel for Turbocharger

24-11-2021

The type of turbochargers turbine wheel belongs to centrifugal series that its rotating speed is usually higher. The materials of this kinds of turbine wheels are recommended for choosing low density and light-weight ones. Except for that, the rigidity of the material is supposed be better and reliable. The more commonly used materials for centrifugal turbine wheels are cast aluminum, stainless steel and titanium alloy nowadays.

There are many decisive factors for the selections of centrifugal turbine wheels' materials. The diameter, speed and direction of the blades surface for the wheels are all the basis for material selections. At the same time, a lot of calculation are needed to determine the appropriate range of material strength.

Turbocharger

Because of the wide range of engine speed and large scale changes of air flow, the shape of the turbocharger's turbine wheel is a complex ternary curved ultra-thin-walled. Generally there are 12 to 30 blades arranged in radial curve. The blade thickness is usually under 0.5 millimeters which is made of aluminum with the special casting method. The shape of the blade affects the performance of the turbocharged engine directly. The wheel starts rotating more sensitive with the light-weight and reasonable shape blade that makes the possible of turbo lag will be much smaller. As a reliable seller in the turbocharger industry, we should purchase high quality and standard for materials.

Turbine Wheel for Turbocharger


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