TA9 Titanium Alloy: Comprehensive Evaluation of High Temperature Performance and Material Hardness

1、 High temperature performance evaluation
TA9 titanium alloy exhibits extraordinary stability in high-temperature environments and is particularly suitable for long-term service in the temperature range of 300 ° C to 600 ° C.
• Antioxidant performance: After long-term exposure to high temperatures of 500 ° C, the oxide film formed on the surface of TA9 titanium alloy remains dense and uniform, effectively blocking the diffusion of oxygen and demonstrating its excellent antioxidant ability.
• Creep resistance: Experimental data shows that under the conditions of 400 ° C and 80MPa continuous stress, the creep rate of TA9 titanium alloy is only 0.02%/1000 hours, far lower than that of ordinary industrial pure titanium, demonstrating its excellent creep resistance.
• Strength variation: From room temperature (25 ° C) to 500 ° C, the tensile strength of TA9 titanium alloy decreased from 415MPa to 300MPa, but the yield strength remained above 200MPa, indicating its excellent high-temperature mechanical properties. 2、 Material hardness analysis
The hardness of TA9 titanium alloy is influenced by both the alloy element content and the heat treatment process.
• Hardness range: The Brinell hardness (HB) of TA9 titanium alloy is usually between 160 and 190, and the addition of palladium significantly improves its hardness and wear resistance.
• Heat treatment effect: After annealing treatment, the hardness of TA9 titanium alloy tends to be around 160HB; After cold processing, the hardness can be increased to over 180HB, demonstrating the effective control of hardness by the heat treatment process.
• Balance between hardness and corrosion resistance: TA9 titanium alloy achieves a good balance between hardness and toughness, ensuring sufficient hardness to enhance wear resistance and avoiding surface brittleness caused by high hardness, thus performing well in acidic environments.

3、 Exploration of Application Fields
Based on its excellent high-temperature stability and moderate hardness, TA9 titanium alloy has broad application prospects in multiple fields:
Chemical industry: Suitable for equipment such as heat exchangers and evaporators in high-temperature corrosive environments.
In the aerospace field, it can be used to manufacture high-temperature components such as engine heat shields.
Ocean engineering: Due to its excellent resistance to seawater corrosion, it is suitable for the manufacturing of deep-sea equipment.
4、 Conclusion
In summary, TA9 titanium alloy achieves a perfect balance between high-temperature performance and material hardness through the strengthening effect of palladium element. Its excellent high-temperature stability, moderate hardness, and outstanding corrosion resistance make it capable of long-term service under harsh conditions. Therefore, TA9 titanium alloy is undoubtedly an ideal material choice for many industrial fields.

Baoji Dingding Titanium Products Co., Ltd. is committed to producing high-quality titanium alloy products. Welcome to consult: 3412107@bjddt.com