| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
High and Very High Cycle Fatigue Characteristics of Wire Arc Additive Manufactured and Cast Nickel Aluminum Bronze |
| Author(s) |
Meysam Haghshenas |
| On-Site Speaker (Planned) |
Meysam Haghshenas |
| Abstract Scope |
Nickel-aluminum bronze (NAB) is utilized in critical applications like marine propellers, pump components, and offshore structures due to its superior mechanical properties and corrosion resistance. This study explores the fatigue performance, including high and very high cycle fatigue (up to 10^9 cycles), of wire arc additive manufactured (WAAM) NAB in the annealed condition (675 °C for 6 h followed by furnace cooling). The research involves static mechanical properties assessment through uniaxial tensile testing and fatigue properties evaluation via fully reversed tests (servo-hydraulic fatigue and ultrasonic fatigue) at ambient temperature. Electron backscatter diffraction (EBSD) was used to analyze texture and grain size distribution, while scanning electron microscopy examined fatigue-fractured specimens. EBSD analysis further investigated deformation behavior beneath the crack initiation zone. The findings reveal insights into fatigue life, crack initiation, and propagation of WAAM NAB compared to cast materials, providing essential information for designing fatigue-resistant components for marine and naval applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, Other |