Chemical Composition
Table 1 outlines the chemical composition of the Ti-4.5Al-3V-2Fe-2Mo alloy. The primary element is titanium (Ti), with aluminum (Al) ranging from 4.00-5.00%, vanadium (V) from 2.50-3.50%, molybdenum (Mo) from 1.80-2.20%, and iron (Fe) from 1.70-2.30%. Other elements such as carbon (C), nitrogen (N), hydrogen (H), oxygen (O), and yttrium (Y) are present in smaller quantities, with specific maximum limits.

Mechanical Properties
Table 2 presents the mechanical properties of the alloy according to AMS 4964 standards. The properties vary with the diameter of the material and the direction of measurement (longitudinal (L), transverse (LT), and short transverse (ST)). For diameters ≤50.8 mm, the tensile strength (σb) is ≥931 MPa, and the yield strength (σ0.2) is ≥862 MPa, with elongation (A) ≥10% and reduction of area (Z) ≥25%. These values slightly decrease for larger diameters.

Material Overview
Ti-4.5Al-3V-2Fe-2Mo, also known as SP700, is an α+β titanium alloy enhanced with beta-stabilizing elements Mo and Fe. Compared to the Ti-6Al-4V alloy, SP700 offers superior cold and hot workability, strength, plasticity, fracture toughness, and fatigue strength. Optimal mechanical properties can be achieved through appropriate heat treatment and microstructure control.

Microstructure Analysis
Figures 1, 2, and 3 provide micrographs at magnifications of 100X, 200X, and 500X, respectively, illustrating the microstructural characteristics of the alloy.