Being the heart of fluid machinery, the performance of an impeller directly affects the operating efficiency, stability, and service life of equipment. Material selection is a key link to ensure the structural strength, corrosion resistance, wear resistance, and economic efficiency of the impeller.

With the fast-paced development of additive manufacturing technology, 3D printed composite impellers gradually but surely have become an important research field in fluid machinery.

With industrial equipment developing towards high-performance states in severe environments, the reliability of the impeller materials running under special working conditions such as high temperature, high pressure, high speed, serious corrosion, and multi-load cycles has acquired particular importance.

This paper begins with the consideration of the cost of manufacturing and performance of common materials, addresses the cost influence of material selection, and suggests optimization techniques for balancing economy and performance.

In most fluid machinery, the impeller is the key component for energy conversion and transfer. Not only are material properties related to strength and life but also have a direct bearing on hydrodynamic behavior.

As the impeller is the fundamental component of fluid machinery, the operation of an impeller not only depends on physical and chemical characteristics of the material itself but also significantly depends on manufacturing processes.

Since they are the key components of turbomachinery, compressors, and pumps, impellers work in the long term in complex conditions with corrosive and solid-laden media and are thus highly susceptible to erosion and corrosion combined

As one of the central moving parts of fluid machinery, the reliability of an impeller’s operation is crucial to the operating efficiency and service life of machinery.

As the core components of rotary machinery equipment such as pumps, compressors, fans, and turbines, the quality of impeller production can have a significant impact on the operational performance and reliability of the entire device.

As the key core component of fluid machinery, machining precision and surface integrity of high-efficient impellers are critical issues to equipment operational efficiency and reliability.

With the increasing performance requirements of core components in aerospace, power energy, and high-tech manufacturing, structures of impellers have become more complex,

As the most important component of various fluid conveying equipment, the impeller material decides the system’s efficiency, stability, and service life.

Being a component of utmost significance in fluid machinery, the impeller material selection decides the performance of operation, life of service, and reliability of the equipment.

Titanium alloys increasingly are an essential component material choice for manufacturing impellers in high-end equipment manufacturing due to their excellent comprehensive properties.

Stainless steel as a material for impellers has wide application potential in corrosive environments. Its excellent corrosion resistance, mechanical properties,

With growing needs for lightweight and high-efficiency mechanical equipment, the selection of impeller materials—critical to rotating machines—is faced with new technological needs and challenges.

In modern aero-engines, impellers, being the critical rotary components, operate in severe high-temperature and high-stress environments for longer periods, necessitating high levels of material thermal strength,

While the global energy framework speeds up to change, wind energy, as one of the major novel energy sources, is evolving towards greater efficiency and larger capacity at an unparalleled rate.