Multi-scale study of subsurface fatigue cracking behavior of laser-powder bed fused Inconel 718 at stress ratios and temperatures

Engineering

• Backscattered Electron 33%
• Crack Tip 33%
• Cracking Behavior 100%
• Defects 33%
• Dislocation Structure 33%
• Elevated Temperature 33%
• Experimental Result 33%
• Failure Behavior 33%
• Failure Mode 66%
• Fatigue Failure 33%
• Focused Ion Beam 33%
• Good Agreement 33%
• Life Prediction 33%
• Main Result 33%
• Mechanical Fatigue Test 33%
• Multiscale 100%
• Phase Boundary 66%
• Plastic Deformation 33%
• Powder Bed 100%
• Powder Bed Fusion 33%
• Predicted Result 33%
• Stress Ratio 100%
• Subsurface 100%
• Transmissions 33%

Material Science

• Crack Tip 50%
• Dislocation Structure 50%
• Focused Ion Beam 50%
• Inconel 718 100%
• Laser Powder Bed Fusion 50%
• Nucleation 50%
• Plastic Deformation 50%
• Powder 100%
• Stacking Fault 50%
• Superalloys 100%