🔬 Iron Stress-Strain Curve Analysis: Crystal Structure Transitions During Mechanical Deformation
Iron Stress-Strain Curve with Crystal Structures 🔬 Iron Stress-Strain Curve Analysis Crystal Structure Transitions During Mechanical Deformation BCC (α-Fe) - Body-Centered Cubic FCC (γ-Fe) - Face-Centered Cubic HCP (ε-Fe) - Hexagonal Close-Packed Key Points: • Elastic Region (0-0.2%): BCC iron deforms reversibly. Atomic bonds stretch but return to original positions. • Yield Point (~250 MPa): Dislocations begin to move through the BCC structure. • Plastic Region: Permanent deformation occurs via slip systems in BCC iron. • High Pressure/Strain: Phase transitions to FCC (γ-Fe) and HCP (ε-Fe) can occur under extreme conditions. ...