The preparation technology of superalloy mechanical forgings is introduced in detail in this paper. First, the characteristics and application fields of superalloy are introduced, and then the main steps and key technologies of superalloy forging process are described, including raw material preparation, melting, forging, heat treatment and surface treatment. Finally, the challenges and development trends of the preparation process of superalloy mechanical forgings are discussed.
Superalloy is a kind of metal material with excellent high temperature mechanical properties and corrosion resistance, which is widely used in aerospace, energy, chemical industry and other fields. Superalloy mechanical forging is an important application form of superalloy materials, and its preparation process is of great significance to ensure product quality and performance. The preparation process of superalloy mechanical forgings will be introduced in this paper.
Superalloy has excellent high temperature strength, oxidation resistance, corrosion resistance and good process performance. They can maintain stable mechanical properties under high temperature, high pressure and strong corrosion environment, so they are widely used in key components such as turbine blades, combustion chambers and high-pressure turbine disks of aerospace engines, as well as gas turbines and nuclear power plants in the energy field.
The main steps of the preparation process of superalloy mechanical forgings
Raw material preparation: Select high-quality superalloy raw materials, and carry out strict chemical composition testing and surface treatment to ensure the purity and quality of raw materials.
Melting: Using vacuum induction melting, electroslag remelting and other advanced melting technology, the raw material is melted and the composition is regulated to obtain high quality superalloy ingot.
Forging: Heating the superalloy ingot to the appropriate temperature, using forging equipment to apply pressure, so that the metal plastic deformation, to obtain the desired shape and size of the forgings. Forging process includes free forging, die forging, etc., can choose the right forging method according to product requirements.
Heat treatment: Heat treatment processes such as solution treatment and aging treatment are carried out on the forged superalloy mechanical forgings to improve their organizational structure and mechanical properties.
Surface treatment: Using sandblasting, polishing and other surface treatment technology to improve the surface quality and corrosion resistance of forgings.
There are still some challenges in the preparation of superalloy mechanical forgings, such as precisely controlling the temperature, deformation and strain rate in the forging process to improve the forming accuracy and consistency of the forgings. At the same time, reducing costs and environmental impact are also important issues.
Future development trends include: first, further optimization of forging process parameters and heat treatment system to improve the performance and stability of superalloy mechanical forgings; The second is to strengthen the research and development of high-performance new superalloys to meet the more demanding working environment; The third is to promote the application of digital and intelligent technology in the preparation process to achieve accurate control and automation of the production process; The fourth is to develop green preparation technology to reduce energy consumption and environmental pollution in the production of superalloy mechanical forgings.
This paper introduces the preparation process of superalloy mechanical forgings in detail, including the main steps of raw material preparation, melting, forging, heat treatment and surface treatment. By continuously optimizing the preparation process, the quality and performance of superalloy mechanical forgings can be further improved to meet the growing demand in aerospace, energy and other fields. In the face of challenges, we should actively carry out the research and development of high-performance new superalloys, promote the application of digital and intelligent technology, and develop green preparation technology, so as to contribute to the sustainable development of the superalloy mechanical forging industry.
