GH4751 is a high-temperature nickel-based alloy with the main components including nickel, chromium, titanium and other elements. The addition of these elements makes GH4751 alloy have excellent oxidation resistance, corrosion resistance and wear resistance, so that it can maintain stable working performance in various high-temperature environments. At the same time, GH4751 alloy also has high strength and toughness, which enables it to maintain good working performance in various stress environments.
Chemical composition of GH4751 alloy.
Carbon (C) content: 003-0.10%
Silicon (Si) content: 050%
Manganese (Mn) content: 050%
Phosphorus (P) content: 0015%
Sulphur(s) content: 0015%
Nickel (Ni) content: 2950-33.50%
Chromium (Cr) content: 1350-15.50%
Molybdenum (Mo) content: 040-1.00
Niobium (NB) content: 040-0.90%
Boron(b) content: 0010%
Aluminium (Al) content: 160-2.20%
Titanium (Ti) content: 230-2.90%
High-temperature short-time mechanical properties of GH4751.
Tensile strength: 510 MPa(800), 770 MPa(700), 930 MPa(600).
Yield strength: 425 MPa (800 ), 650 MPa (700 ), 690 MPa (600).
GH4751 alloy characteristics;
1.High temperature strength: GH4751 has excellent high temperature strength, which can maintain the stability of its mechanical properties and resist the challenges of high temperature environment. It has high yield and tensile strength and can withstand heavy loads at high temperatures.
2.Creep resistance: GH4751 has excellent creep resistance, and can maintain the stability of its shape and strength under high temperature and high stress conditions. Creep resistance is one of the important indicators to measure the quality of superalloy materials, and GH4751 performs well in this regard.
3.Oxidation resistance: GH4751 has excellent oxidation resistance, which can resist oxidation and corrosion at high temperatures. The oxide layer formed can effectively protect the matrix and prolong the service life of the material.
GH4751 has a wide range of applications, including but not limited to the following:
1.Aerospace: GH4751 is widely used in high-temperature engine parts, turbine blades, combustion chambers, etc. Due to its high-temperature strength and oxidation resistance, it can withstand high-temperature and high-pressure environments to ensure the safe and reliable operation of aerospace equipment.
2.Petrochemical industry: GH4751 can be used to manufacture high-temperature components of petrochemical equipment, such as oil refining units and chemical reactors. Its creep resistance and oxidation resistance enable it to cope with high temperature and high pressure environments and ensure the safe and stable operation of the equipment.
3.Nuclear engineering field: GH4751 can be used in the manufacture of nuclear engineering equipment, such as structural materials and fuel elements for nuclear reactors. Its high-temperature strength and oxidation resistance enable it to withstand the high-temperature and high-pressure environment of nuclear reactors and ensure the safe operation of nuclear energy.
4.Power field: GH4751 can be used to manufacture high-temperature components of power equipment, such as turbine blades, boiler tubes, etc. Its high-temperature strength and oxidation resistance enable it to withstand high-temperature and high-pressure power working environment, ensuring the efficient and stable operation of power equipment.
In short, with the development of science and technology and industrial progress, superalloys are also constantly developing and upgrading, at present, researchers are developing a series of new superalloys to improve their mechanical properties and processing properties, and explore their applications in a wider range of fields, in the future, superalloys will continue to play their unique advantages, become one of the important representatives in the field of high-performance materials.