What alloy is K4242?
K4242 nickel-based precipitation hardening equiaxed crystal casting superalloy is a kind of superalloy with excellent high-temperature strength and good casting performance.
of superalloy materials. It has a wide range of application prospects in aviation, aerospace, energy and other fields. This article will be written by Shanghai.
Bohu introduces K4242 nickel-based precipitation hardening equiaxed crystalline casting superalloy.
K4242 nickel-based precipitation-hardening equiaxed crystalline casting superalloy has the following characteristics:
1.High strength at high temperature: It can still maintain high strength and hardness at high temperature, and has good creep resistance and fatigue resistance.
Labor performance. 2.Excellent casting performance: it has low liquid shrinkage and solidification shrinkage, and reduces shrinkage porosity and shrinkage porosity in castings.
and so on. 3.Good corrosion resistance: It has good resistance to a variety of corrosive media, and can be used to manufacture high in harsh environments.
Warm parts. 4.The manufacturing process is simple: the equiaxed crystal casting process can be used to obtain castings with complex shapes and precise dimensions, and grains.
It is small and evenly structured, which improves the comprehensive performance of the casting.
Composition of K4242 nickel-based precipitation-hardening equiaxed crystalline casting superalloy
The main components of K4242 nickel-based precipitation hardening equiaxed crystalline casting superalloy include nickel, chromium, aluminum, titanium, niobium and other elements.
Plain. Among them, nickel is the main matrix element, which can provide good creep resistance and fatigue resistanceChromium.
elements can improve the oxidation and corrosion resistance of materials;Aluminum and titanium contribute to the formation'phase, further.
Improve the high-temperature strength of the material;Niobium can refine the grain and improve the overall properties of the material. In addition, K4242
The alloy also contains a certain amount of zirconium and cerium, which can purify the alloy liquid and reduce defects in the casting.
K4242 Nickel-based precipitation hardening equiaxed crystal casting superalloy manufacturing process
The manufacturing process of K4242 nickel-based precipitation-hardening equiaxed crystalline casting superalloy mainly includes the following steps:
1.Melting: K4242 alloy is smelted by vacuum induction furnace or non-vacuum induction furnace to ensure that the alloy composition is accurate and pure.
2.Pouring: The molten alloy is poured into the mold to control the pouring temperature and speed to ensure the quality of the casting.
3.Solidification: Solidification is carried out at a certain temperature and time to make the alloy fully solidified.
4.Heat treatment: solution treatment and aging treatment are carried out to adjust the microstructure and mechanical properties of the material.
5.Machining: Machining, welding and other treatments on castings to meet the needs of practical applications.
Application field of K4242 nickel-based precipitation hardening equiaxed crystal casting superalloy
Due to the excellent performance and wide applicability of K4242 nickel-based precipitation-hardening equiaxed crystalline casting superalloy, it is due to.
thisIt is widely used in the following fields:
1.Aerospace field: used in the manufacture of turbine blades, guide vanes and other high-temperature components in aero engines, as well as aerospace.
High-temperature structural parts in celestial vessels.
2.Energy: used in the manufacture of turbine blades, combustion chambers and other components in gas turbines, as well as junctions in nuclear reactors.
Component. 3.Automotive: It is used to manufacture high-temperature components such as turbocharger blades and exhaust system components in automobile engines.
4.Other fields: such as metallurgy, chemical industry, medical equipment and other fields of high-temperature component manufacturing.
K4242 nickel-based precipitation hardening equiaxed crystalline casting superalloy has excellent high temperature strength and good casting performance at high temperature.
Alloy materials have been widely used in aviation, aerospace, energy and other fields. With the continuous progress and application of science and technology.
With the continuous expansion of demand, the research and application of K4242 nickel-based precipitation hardening equiaxed crystal casting superalloy will continue to deepen.
into and develop. 
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