Thermal power forging plays an important role in thermal power generation equipment, and its performance and quality directly affect the operation safety and efficiency of equipment. In the high temperature environment, thermal power forging materials will occur oxidation behavior, resulting in material performance decline, and even lead to equipment failure. Therefore, the study of high temperature oxidation behavior of thermal power forging materials is of great significance for improving the oxidation resistance of materials and prolonging the service life of equipment.
Research status of high temperature oxidation behavior of thermal power forging materials
At present, scholars at home and abroad have done a lot of research on high temperature oxidation behavior of thermal power forging materials. The research contents include oxidation kinetics, oxidation mechanism, oxidation film formation and evolution. The research methods mainly include experimental research and computer simulation.
In terms of experimental research, scholars mainly through thermogravimetric analysis, X-ray diffraction, scanning electron microscopy and other means to study the oxidation behavior of thermal power forging materials at high temperatures. The oxidation resistance of different materials was evaluated by comparing the oxidation rate, oxidation products, oxidation film structure and other parameters. At the same time, scholars also studied the influence of different factors on oxidation behavior by changing experimental conditions, such as temperature, atmosphere, pressure, etc.
In terms of computer simulation, scholars mainly use first-principle calculation, molecular dynamics simulation and other methods to reveal the oxidation mechanism of thermal power forging materials from the atomic scale. By simulating the interaction between atoms and the change of electronic structure during oxidation, the formation and evolution mechanism of oxide film was revealed, which provided theoretical support for material design and optimization.
Although some progress has been made in the study of high temperature oxidation behavior of thermal power forging materials, there are still some problems. For example, experimental research is limited by experimental conditions and equipment, and it is difficult to fully reveal the complexity of oxidation behavior. Due to the limitation of calculation methods and model accuracy, it is difficult for computer simulation to accurately predict the oxidation behavior of real materials. Therefore, it is necessary to further improve the research methods and improve the research level.
In this study, the high temperature oxidation behavior of thermal power forging materials was studied by combining experimental research and computer simulation. Firstly, a typical thermal power forging material is selected as the research object to carry out high temperature oxidation experiment. The oxidation rate, oxidation products and structure of oxide film were studied by thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. At the same time, the influence of different factors on oxidation behavior was studied by changing the experimental conditions, such as temperature, atmosphere, pressure, etc.
On the basis of experimental research, the oxidation mechanism of thermal power forgings was revealed from atomic scale by means of first-principle calculation and molecular dynamics simulation. The formation and evolution mechanism of oxide film was revealed by simulating the interaction between atoms and the change of electronic structure during oxidation. According to the experimental data and simulation results, the oxidation resistance of the material was evaluated and optimized.
Research results and analysis of high temperature oxidation behavior of thermal power forging materials
Through experimental research and computer simulation, a series of important results of high temperature oxidation behavior of thermal power forging materials have been obtained. Firstly, the experimental results show that the oxidation resistance of different thermal forging materials is obviously different. Some materials have high oxidation resistance at high temperature, which can inhibit the occurrence and development of oxidation behavior to a certain extent. At the same time, the experimental results also show that the temperature, atmosphere and other factors have significant effects on the oxidation behavior of the material. With the increase of temperature and oxygen content in the atmosphere, the oxidation rate of the material is gradually accelerated.
In the aspect of computer simulation, this study reveals the microscopic mechanism of high temperature oxidation behavior of thermal power forging materials. By simulating the interaction between atoms and the change of electronic structure during oxidation, it is found that the formation and evolution mechanism of oxide film are affected by many factors such as material composition and crystal structure. At the same time, the simulation results also show that the oxidation resistance of the material can be effectively improved by adjusting the composition and microstructure of the material.
In this study, the high temperature oxidation behavior of thermal power forging materials was systematically studied by experiment and computer simulation. The results show that the oxidation resistance of different thermal forging materials is obviously different, and the temperature, atmosphere and other factors have significant effects on the oxidation behavior of materials. At the same time, this study reveals the microscopic mechanism of high temperature oxidation behavior of thermal power forging materials, which provides theoretical support for material design and optimization.
Future research can further focus on the following aspects: First, in-depth study of different thermal power forging materials oxidation resistance differences and influencing factors; The second is to explore the application of new antioxidant materials and coating technology in thermal power forgings; The third is to develop more accurate and efficient computer simulation methods to accurately predict the oxidation behavior of real materials. Through the development of these research work, it is expected to provide strong support for improving the oxidation resistance of thermal power forgings and extending the service life of equipment.
