Abstract
Titanium alloys are widely used due to their high performance and low density in comparison with iron-based alloys. Their applications extend to aerospace and military in order to utilize their high resistance for corrosion. Understanding the mechanical properties and microstructure of titanium alloys is critical for performance optimization, as well as their implications on strength, plasticity, and fatigue. Ti-6Al-4V is an α+β two-phase alloy and is considered one of the most commonly used titanium alloys for weight reduction and high-performance. To avoid manufacturing defects, such as porosity and composition segregation, Hot Isostatic Pressing (HIP) is used to consolidate alloy powder. The HIP method is also used to facilitate the manufacturing of complex structures that cannot be made with forging and casting. In the current research, Ti-6Al-4V alloys were manufactured with HIP and the impact on heat treatment under different temperatures and sintering durations on the performance and microstructure of the alloy was studied. The results show changes in mechanical properties and microstructure with the increase of temperature and duration.
Highlights
The utilization of titanium for industrial purposes became popular during the last fifty years due to its competitive properties in comparison with traditionally used metals, such as iron, steel, etc. [1]
Ti-6-4 alloys were manufactured under Hot Isostatic Pressing (HIP) and the samples were put under very high temperatures with different exposure timings
Ti-6Al-4V alloys were manufactured with the HIP method and the impact of heat treatment, under different temperatures and sintering durations on the performance and microstructure of the alloy, was studied
Summary
The utilization of titanium for industrial purposes became popular during the last fifty years due to its competitive properties in comparison with traditionally used metals, such as iron, steel, etc. [1]. Titanium alloys are commonly used in aerospace and military applications due to their low density and high resistance to corrosion, high performance, and strength. The applications of titanium alloys are correlated to their mechanical properties. Authors in [12] investigated the heat and pressure conditions of the HIP and the cooling rate of the Ti-64 samples on their microstructure and mechanical properties. They found that temperatures ranging between 900 and 940oC and a pressure of 100MPa yield the most optimized tensile strength, with sample holding for 3 hours in room temperature. The impacts on wear resistance, microstructure, and mechanical properties were investigated and compared to the results of previous research for verification and possible enhancements on the properties of the alloy
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
