1. Ablation and wear problems in aerospace and military industries
Many key components in aerospace and military industries work under high-temperature conditions and are subject to the interaction of thermal, mechanical, and chemical processes, resulting in severe ablation and wear. At present, the solution to the problem of wear resistance and ablation resistance is mainly to prepare protective coatings. High-performance coatings need to meet the following requirements: high melting point, good high-temperature strength, resistance to burning by reactive gases, good bonding with the substrate, and a certain thickness to protect the workpiece from wear caused by heat.
2. Tantalum coating can provide a good solution
Characteristics
Tantalum's good high-temperature mechanical properties meet the requirements of wear and ablation conditions. The rational development and utilization of tantalum coatings can improve the life of workpiece underwear and ablation conditions, save resources, and also achieve good economic benefits and safety guarantees.
The melting point of tantalum is about 2996℃, second only to carbon, europium, rhenium, and osmium. Its elastic modulus is similar to that of steel, with good conductivity and plasticity. In addition, tantalum has low metal activity and extremely high corrosion resistance. It cannot be corroded by various strong acids at room temperature. At the same time, tantalum also has good biocompatibility and good wear resistance. At present, tantalum metal has been used in many fields such as the medical, aerospace, and military industries.
Specific applications
Tantalum is a key additive for high-temperature alloys, especially nickel-based high-temperature alloys. Tantalum is added to various alloys such as nickel-based, cobalt-based, and iron-based alloys to manufacture high-performance alloys such as superalloys, corrosion-resistant alloys, and wear-resistant alloys. The addition of tantalum mainly plays a role in solid solution strengthening, improving the ultimate strength of the alloy, especially the high-temperature creep strength, oxidation resistance, and corrosion resistance. Nickel-based high-temperature alloys have become key materials for high-temperature components such as aircraft engine turbine blades, guide vanes, and turbine disks.
3. Advantages of tantalum materials worth developing
Tantalum is a very good candidate material in the aerospace and military industries, which need to be in a high-temperature state for a long time and have strict requirements on components. Its good high-temperature mechanical properties meet the requirements of wear and ablation conditions. The reasonable development and utilization of tantalum coatings can increase the life of workpiece underwear and ablation conditions, save resources, avoid waste of resources, and at the same time obtain good economic benefits and safety guarantees.
4. Tantalum and its alloy products of our company
