GH4099 alloy usually has some of the following mechanical property characteristics:1The tensile strength at high temperature is high, and it can still maintain good strength performance above 600 degrees Celsius. 2.Yield strength: The alloy has a good yield strength and is able to withstand large stresses without plastic deformation. 3.Elongation: It has a certain extensibility at high temperature, and can be plastically deformed to a certain extent. 4.Hardness: Alloys typically have a high hardness and are resistant to scratches and abrasion. 5.Fatigue strength: Under high temperature and high stress conditions, it has a certain fatigue strength and good durability. 6.Toughness: The alloy has a certain toughness and is able to maintain stable properties when exposed to shock or vibration.
The chemical composition is as follows:- Nickel (Ni): contains about 50-55% nickel, - Chromium (Cr): contains about 15-21% chromium, - Molybdenum (Mo): contains about 6-10% molybdenum, - Tungsten (W): contains about 1-4% tungsten, - Iron (Fe): one of the basic elements in the alloy, - Carbon (C): contains about 008-0.15% carbon,- manganese (mn): contains about 05-2% manganese,- silicon (Si): contains about 02-0.6% silicon,-niobium (nb): contains about 05-1.5% niobium,- aluminium (al): contains about 08-1.5% aluminum,
It has good high temperature resistance, which is embodied in the following aspects: 1It can maintain high strength and hardness in a high-temperature environment, can withstand large stress and load, and is not easy to deform and break. 2.Elements such as chromium, aluminum, and silicon in the alloy can form a dense oxide protective layer, which can effectively prevent the erosion and oxidation of oxygen, and improve the high temperature resistance of the alloy. 3.It has good creep resistance, that is, under the action of high temperature and continuous stress, it can maintain good stability and shape retention, and prolong the service life of the material. 4.Thermal expansion coefficient matching: The thermal expansion coefficient of the alloy matches some common metal matrices (such as steel and aluminum) to reduce stress and deformation caused by thermal expansion mismatch in high temperature environments. 5.Thermal fatigue resistance: The alloy has good thermal fatigue resistance, that is, it can maintain good performance and life when subjected to cyclic thermal stress at high temperatures.
It is mainly used in the aerospace and energy fields, especially for structural parts and components in high temperature and corrosive environments. Here are some of the main areas of application:1Aerospace is used in the manufacture of high-temperature structural components in aerospace engines, such as turbine blades, combustion chamber bushings, etc. 2.Alloys are used in the manufacture of high-temperature parts of gas turbines, such as combustion chambers, turbines, etc. 3.It can be used in some equipment in the petrochemical field that requires corrosion resistance and high temperature performance, such as chemical fertilizer, petroleum refining equipment, etc. 4.Alloys can also be used in key components of wind power generation, such as blades and bearings in wind turbines. 5.It is also used in the manufacture of parts for some nuclear reactors and related equipment in the nuclear industry, such as nuclear reactor pressure vessels, nuclear fuel devices, etc.