Low-magnification structure of ZG1Cr18Ni12M03Ti steel (precision casting)

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Low-magnification microstructure of Ti-18Ni-12Mo-3 steel (Precision Casting)

Ti-18Ni-12Mo-3 steel (precision casting) is a type of martensitic stainless steel with good corrosion resistance and high strength. It is often used in the manufacturing of valves, pumps, marine equipment and other components that are exposed to harsh environments. The microstructure of low-magnification Ti-18Ni-12Mo-3 steel (precision casting) consists of a matrix of ferritic and martensitic lath structures with some small amounts of carbides.

The ferritic lath in the microstructure of low-magnification Ti-18Ni-12Mo-3 steel (precision casting) is formed by an interconnecting network of ferrite and carbide particles. The carbides form a continuous line of grains that run in the direction of the metallic bonds. The ferrite has a high amount of ductility, making the steel very tough and wear resistant. The hardness of the ferrite can also be adjusted to suit different applications.

The metal matrix, besides the ferrite and carbides, is composed of precipitation zone pores, as well as oxides, nitrides and sulfides. The metal matrix constitutes most of the material and thus provides major mechanical strength to the structure. The precipitation zone pores contain a lot of carbon and other elements, which helps to increase the metallurgical properties of the material.

At the same time, the martensitic laths in the microstructure of the low magnification Ti-18Ni-12Mo-3 steel (precision casting) provide additional strength to the matrix and help to maintain the shape and tolerances of the product. These martensitic laths are much finer in size, making them less prone to cracking or breakage.

In addition to the ferritic and martensitic laths, the microstructure of low-magnification Ti-18Ni-12Mo-3 steel (precision casting) contains small amounts of carbides and oxides dispersed throughout the matrix. These particles are often very small in size, making them difficult to observe, but they are still essential to the integrity of the microstructure. Carbides enhance wear resistance, while oxides help to increase strength and toughness of the material.

The low-magnification microstructure of Ti-18Ni-12Mo-3 steel (precision casting) is complex and features an intricate network of ferrite, martensitic lath and carbide structures. Together, these features provide it with exceptional strength, wear resistance, and corrosion resistance. This type of steel is widely used in industries that demand high-precision components and parts, such as the manufacture of valves, pumps, and equipment for the marine industry.

XG18Ni12M0Ti Steel is a low-temperature precision cast steel with a higher value of 18% nickel and the addition of 0.12% molybdenum and titanium. This steel has excellent mechanical properties, superior corrosion resistance and excellent weldability. It is widely used in various manufacturing processes such as automotive, aerospace, medical, and industrial components.

XG18Ni12M0Ti Steel has a carbon content of 0.14%, a silicon content of 0.20% and a manganese content of 0.90%. The chromium content is 0.50%, a medium amount of aluminum, and a medium amount of phosphorus and sulfur. The addition of titanium and molybdenum make the steel very hard and strong.

In terms of mechanical properties, XG18Ni12M0Ti Steel has a yield strength of 200 MPa, an ultimate tensile strength of 400 MPa, and an elastic modulus of 200 GPa. The hardness ranges between 178-204 HBW, and the elongation ranges between 15-25%.

Regarding corrosion resistance, XG18Ni12M0Ti Steel has excellent general corrosion resistance and excellent resistance to pitting and crevice corrosion. It is also resistant to chloride-ion stress corrosion cracking.

XG18Ni12M0Ti Steel is used for various components with demanding fabrication and joining processes, such as turbine parts, heat exchangers, bolters, machine tool parts, and so on. It is also used in various industries such as chemical engineering, nuclear power and food processing.

Thanks to its excellent mechanical properties and superior corrosion resistance, XG18Ni12M0Ti Steel has become a popular choice for precision casting and high-temperature service. It is also used in a variety of premium applications as it offers good fabricability, weldability and cost-effectiveness.