With the development of science and technology, the industrial production requirements of aerospace, automobile and other industries continue to increase. In order to adapt to the overall industrial production requirements for high-temperature components in gas turbines, turbine blade casings and other fields, the performance requirements for raw materials have also increased. The nickel-based casting method of preparing high-temperature alloy material parts can meet the raw material requirements of industrial production in various fields in terms of performance and processing methods. In addition, heat treatment is an indispensable process in the production process of high-temperature alloys. It can improve the heat resistance, corrosion resistance and other properties of the alloy by changing the microstructure of the alloy. In the process of preparing parts from nickel-based casting high-temperature alloys Among them, the heat treatment process plays an important role. This article will introduce the development history and heat treatment technology of nickel-based cast superalloys and their impact on structure and properties, and explain the development status and trends of heat treatment technology for nickel-based cast superalloys.
Ⅰ. Development history of nickel-based casting superalloys
Nickel-based casting superalloys originated in the 1940s. With the development of aerospace, automobile and other industries, the demand for superalloys has gradually increased. Nickel-based cast superalloys have excellent heat resistance, corrosion resistance, high-temperature strength and other properties, and therefore are widely used in aerospace, automobiles, gas turbines and other fields. With the advancement of science and technology, the research and application of nickel-based casting superalloys have also continued to develop. Currently, many different types of nickel-based casting superalloys have been developed to meet the needs of different fields.
Ⅱ. Heat treatment technology and its impact on structure and performance
Heat treatment is an indispensable process in the production process of high-temperature alloys. It can improve the heat resistance, corrosion resistance and other properties of the alloy by changing the microstructure of the alloy. The heat treatment process mainly includes solid solution treatment, aging treatment, quenching and tempering, etc. During the heat treatment process, the structure and properties of the alloy will change significantly, so choosing an appropriate heat treatment process is crucial to improving the performance of nickel-based casting superalloys.
1. Solid solution treatment: By heating the alloy to a high temperature and maintaining it for a certain period of time, various elements in the alloy are fully dissolved, and then rapidly cooled to fix the solute atoms in the alloy in the matrix, thereby improving the strength and toughness of the alloy.
2. Aging treatment: The alloy is heated to an appropriate temperature and maintained for a certain period of time to gradually precipitate the solute atoms in the alloy to form a strengthening phase, thus improving the strength and hardness of the alloy.
3. Quenching and tempering: By heating the alloy to a high temperature and cooling it rapidly, the structure in the alloy undergoes phase transformation, and then tempering at an appropriate temperature makes the structure and performance of the alloy reach its optimal state.
3. Development status and trends of heat treatment technology for nickel-based casting high-temperature alloys
With the development of science and technology, the heat treatment technology of nickel-based casting high-temperature alloys is also constantly improving. At present, researchers have developed a variety of new heat treatment processes, such as isothermal quenching, double aging treatment, etc. These new heat treatment processes can further improve the performance of nickel-based cast superalloys. In addition, with the application of computer technology, the simulation and optimization of heat treatment processes have also become a research hotspot, which helps to better understand the changes in alloy structure and properties during heat treatment and provides guidance for actual production.
4. Conclusion and outlook
This article introduces the development history and heat treatment technology of nickel-based cast superalloys and their impact on structure and properties, and explains the development status and trends of heat treatment technology for nickel-based cast superalloys. With the development of science and technology, nickel-based casting superalloys and their heat treatment technology will continue to make breakthroughs, providing better material support for the development of the industrial field.
Tianjin Anton Metal Manufacture Co., Ltd. is a company specializing in the production of various nickel-based alloys, Hastelloy alloys and high-temperature alloy materials. The company was established in 1989 with a registered capital of 10.0 million, specializing in the production and sales of alloy materials. Anton Metal’s products are widely used in aerospace, chemical industry, electric power, automobile, nuclear energy and other fields, and can also provide customized alloy material solutions according to customer needs. If you need to know the price consultation of alloy materials or provide customized alloy material solutions, please feel free to contact the sales staff.
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Post time: Oct-21-2023
