| About this Abstract |
| Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Presentation Title |
Effect of Process-specific Defects on the Tensile and Constant-amplitude Tatigue Behavior of As-built Ti-6Al-4V Alloy Produced by Laser Powder Bed Fusion Process |
| Author(s) |
Saikumar Reddy Yeratapally, Erik L Frankforter, George R Weber, Peter W Spaeth, Christapher G Lang, Albert R Cerrone, Edward H Glaessgen |
| On-Site Speaker (Planned) |
Saikumar Reddy Yeratapally |
| Abstract Scope |
The influence of various process parameters on the mechanical behavior (including tensile strength, strain-to-failure and constant-amplitude fatigue performance) of as-built Ti-6Al-4V alloy, produced via laser powder bed fusion (L-PBF) process, is demonstrated using complementary information obtained from mechanical tests, fractography analysis, metallographic analysis and micromechanical simulations. Four different build conditions were considered such that the laser power and velocity were varied for each build while holding the build orientation, hatch spacing, layer thickness, laser spot size and hatch rotation constant. Two coupons per build were subjected to constant-amplitude fatigue loading while one coupon per build was subject to uniaxial tensile loading at room temperature. The effect of process-specific defects will be contextualized by using complementary information obtained from X-ray computer tomography (CT), fractography imaging and micromechanical simulations. The resultant mechanical performance will be correlated to pore distribution, crack profiles from fractography imaging and the estimated strain fields from micromechanical simulations. |
| Proceedings Inclusion? |
Undecided |