Investigation of the Mechanical Properties and Corrosion Resistance of Pure Titanium Sheets Through Climb and Conventional Milling: A Novel Approach for Military and Petrochemical Applications

This study investigates the influence of milling direction—climb milling and conventional milling—on the surface properties of ۴ mm-thick pure titanium sheets, machined at a depth of ۰.۵ mm. The primary objective is to analyze and compare the effects of these milling methods on hardness, wear resistance, and corrosion behavior of titanium. A detailed experimental approach was employed, including hardness testing, wear analysis, and corrosion evaluation.The results revealed that the milling method plays a crucial role in determining the final properties of titanium. Climb milling produced superior mechanical properties, achieving a maximum hardness of ۳۳۴ HV, compared to ۳۱۵ HV in conventional-milled samples, attributed to work hardening and a refined microstructure. Additionally, wear resistance improved with material loss reduced to ۱۰.۸۷ mg in climb-milled samples, compared to ۹.۹۹ mg in conventional-milled samples and ۱۸ mg in pure titanium. Meanwhile, corrosion resistance was significantly enhanced in climb-milled samples, with the corrosion rate decreasing to ۰.۰۰۰۳ mm/year, compared to ۰.۰۲ mm/year in conventional-milled samples. These findings underline the potential of climb milling to enhance the mechanical and corrosion properties of titanium, making it more suitable for critical applications in military, petrochemical, and medical industries. By optimizing milling strategies, the lifespan and performance of titanium components in sensitive engineering and biomedical fields can be substantially improved.

کلیدواژه ها:

Titanium ، Machining ، milling ، Wear ، Corrosion