Nickel-based alloy INCONEL718 is an alloy composed of nickel, chromium, iron, molybdenum and other elements, which is widely used in aviation, aerospace, petroleum, chemical industry and other fields because of its good high-temperature strength, corrosion resistance and oxidation resistance. In this paper, the characteristics, application and preparation process of nickel-based alloy INCONEL718 will be introduced in detail.
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1. Characteristics of nickel-based alloy INCONEL718.
1.High temperature strength: Nickel-based alloy INCONEL718 can still maintain high strength at high temperatures, so it is suitable for working in high temperature environments.
2.Corrosion resistance: Inconel718 alloy has good corrosion resistance and can resist the attack of a variety of chemicals, such as acids, alkalis, salts, etc.
3.Oxidation resistance: In a high-temperature environment, Inconel 718 alloy can effectively resist oxidation and maintain its stable properties.
4.Good welding performance: Inconel718 alloy has good welding performance, which is convenient for processing and manufacturing.
5.Wide temperature range: Inconel 718 alloy can be used in a temperature range of -253 to 650 to meet the needs of different fields.
Second, the application of nickel-based alloy INCONEL718.
Due to its excellent properties, INCONEL718 alloy is widely used in aviation, aerospace, petroleum, chemical industry and other fields. In the aerospace sector, Inconel 718 alloy is used in the manufacture of aircraft engines and gas turbine components, such as blades, discs, etc. In the aerospace sector, Inconel 718 alloy is used in the manufacture of parts for rocket engines and missiles. In the petroleum and chemical industry, Inconel 718 alloy is used in the manufacture of reactors, heat exchangers, pipelines and other equipment, which can withstand high temperatures and corrosive environments.
3. Preparation process of nickel-based alloy INCONEL718.
The preparation process of Inconel718 alloy mainly includes smelting, casting, heat treatment and processing. First, various raw materials are melted and mixed through smelting to form a homogeneous alloy melt. Secondly, the casting process is used to cast the melt into the ingot blank or casting of the desired shape. Heat treatment is the key link to achieve the desired structure and properties of the alloy through processes such as heating, holding and cooling. Finally, machining is carried out as needed, such as turning, milling, drilling, etc., to get the final part or product.
Fourth, summary. As a high-performance metal material, nickel-based alloy INCONEL718 has excellent high-temperature strength, corrosion resistance and oxidation resistance, and is widely used in aviation, aerospace, petroleum, chemical industry and other fields. Understanding and mastering the characteristics and applications of Inconel 718 alloy is of great significance to improve the performance and service life of equipment. At the same time, the continuous research and development of new nickel-based alloy materials also plays a positive role in promoting the development and technological progress of related industries.