Chemical Composition:
Table 1 outlines the chemical composition of the Ti-10V-2Fe-3Al alloy. The primary elements include Titanium (Ti) as the balance, Vanadium (V) ranging from 9.0-11.0%, Iron (Fe) from 1.6-2.2%, and Aluminum (Al) from 2.6-3.4%. Other elements such as Oxygen (O), Carbon (C), Nitrogen (N), Hydrogen (H), and Yttrium (Y) are present in minimal amounts, with specific limits for each. Residual elements are limited to 0.1% each and a total of 0.30%.

Mechanical Properties:
Table 2 presents the mechanical properties of the alloy in different directions. In the longitudinal (L) and transverse (T) directions, the ultimate tensile strength (σb) ranges from 1100-1250 MPa, with a yield strength (σ0.2) of at least 1000 MPa. The elongation (δ5) is at least 6% in the L direction and 4% in the T direction, while the reduction of area (Ψ) is at least 15% and 10% respectively. The hardness (HB) is at least 320. In the C-R direction, the fracture toughness (K1C) is at least 50 MPa√m.

Microstructure:
Figure 1 provides a micrograph at 500X magnification of the Ti-10V-2Fe-3Al alloy, highlighting its microstructural characteristics.

Alloy Overview:
The Ti-10V-2Fe-3Al alloy, also known as Ti-1023, is a high-strength and high-toughness titanium alloy developed in the late 1970s. It was designed to meet the requirements of damage tolerance design principles.