Metallographic diagram of 18Cr2Ni4WA (laser surface quenching after quenching and tempering)

18Cr2Ni4WA (Surface Laser Tempered) Microstructure

The 18Cr2Ni4WA steel is a chromium-molybdenum-nickel alloy which is used for a variety of applications including aircraft and motor vehicle parts. The alloy is well known for its impressive toughness, ductility and strength, allowing it to be used in a variety of engineering and manufacturing applications.

The 18Cr2Ni4WA alloy is commonly heat treated to obtain the desired physical properties. The process involved involves a combination of annealing, normalizing and quenching, which is followed by a laser tempering procedure. The laser tempering procedure involves the use of high temperature beams used to heat specifically targeted areas of the metal.

This heat treatment process improves the hardness and wear resistance of the metal without significantly changing the mechanical properties. The microstructure of the 18Cr2Ni4WA steel following the laser tempering procedure consists primarily of martensite. This martensite has an acicular shape and contains iron-rich carbide particles.

The martensite has a high degree of hardness and strength which make it is ideal for use in many applications. The martensitic microstructure of the 18Cr2Ni4WA steel is further strengthened by the presence of iron-rich carbide particles. These carbide particles also improve the wear resistance of the steel making it suitable for use in engineering and manufacturing components that will be exposed to high levels of stress and wear.

Analysis of the 18Cr2Ni4WA steel cannot be completed without considering the microstructure. The laser tempered microstructure provides a unique combination of strength and durability, making it ideal for engineering and manufacturing components. Its strength and wear resistance make it suitable for parts which require regular maintenance or will experience high levels of force or wear. The presence of the carbide particles further strengthens the metal and increases its wear resistance, making it an excellent choice for engineering and manufacturing parts.

Alloy 20Cr2Ni4WA (after tempering of laser surface hardening) is an alloy with superior strength, wear resistance and corrosion resistance. It belongs to medium carbon, high chromium and high nickel martensitic stainless steel.

The microstructure of 20Cr2Ni4WA (after tempering of laser surface hardening) consists of martensite, bainite, fine white pearlite and injected carbides. After tempering of laser surface hardening, the martensite in the steel is about 30%, the bainiteis about 30%, the pearlite is about 10%, and the injected carbides are about 30%.

In terms of performance, 20Cr2Ni4WA (after tempering of laser surface hardening) has a high strength, good wear resistance and corrosion resistance, abrasion resistance and fatigue resistance, and a good air cooling hardening performance. The limits of the quench hardening and tempering parameters of 20Cr2Ni4WA (after tempering of laser surface hardening) are 900-1000℃ quenching temperature and 610-700℃ tempering temperature.

The application range of 20Cr2Ni4WA (after tempering of laser surface hardening) includes: wear-resistant and corrosion-resistant components of petrochemical, coal mine and metallurgical equipment, components of valves and mobile drilling rigs, bearing components, rotary cutter bits and other power tools.