Abstract: With the rapid development of industry, the application of new materials continues to emerge, among which magnesium alloy forgings, as a kind of lightweight and high-strength materials, have shown great potential in many fields. However, whether it can completely replace traditional materials still needs in-depth comparison and analysis. Traditional materials have long played an important role in various industries, and their stability and reliability have been fully verified. The appearance of magnesium alloy forgings has brought us a new choice. This paper will compare and analyze magnesium alloy forgings with traditional materials from the aspects of material characteristics, processability and cost-effectiveness, so as to provide readers with a deeper understanding. 1. Comparison of material characteristics: Strength and lightweight: magnesium alloy forgings have higher strength and stiffness, and are lighter than traditional materials, which is conducive to improving the overall lightweight level of the product. Corrosion resistance: Magnesium alloy forgings have good corrosion resistance under many environmental conditions, especially for the Marine environment and high temperature and humidity climate conditions have strong corrosion resistance. Plasticity and machinability: Traditional materials have almost no limitations in the processing and forming process, and magnesium alloy forgings are poor in plasticity, requiring finer control and operation, and have higher requirements for molds and equipment. Manufacturing process: The manufacturing process of traditional materials is relatively mature and popular, and the cost is low, while the manufacturing process of magnesium alloy forgings is still in the exploration stage, and the cost is high. Heat treatment performance: The heat treatment performance of magnesium alloy forgings is stronger than that of traditional materials, which has certain advantages in improving the heat resistance, strength and hardness of materials. Processing difficulty: magnesium alloy forging is difficult to process, easy to produce defects, need to take a series of complex process measures to control; The processing of traditional materials is relatively simple and stable. Third, cost-benefit comparison: Material cost: traditional materials are diverse, the price is relatively low, compared with magnesium alloy forgings more competitive advantage. Additional costs: The production process of magnesium alloy forgings requires highly sophisticated equipment and professional manufacturing processes, which increases production costs and manufacturing cycles. The traditional material is relatively simple in production and the additional cost is relatively low. Conclusion: Magnesium alloy forging, as a new material, has the characteristics of light weight, high strength and corrosion resistance, and has a wide application prospect in some specific application fields. However, in practical applications, it is also necessary to consider factors such as material characteristics, processing performance and cost effectiveness according to the specific situation. Therefore, when choosing materials, we should consider the project needs, demand costs and technical limitations, weigh the pros and cons, and choose the right materials.
