About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
|
| Presentation Title |
Fatigue and Microstructural Characterization of Laser Powder Bed Fused CuNi30 Alloy |
| Author(s) |
Mojtaba Roshan, MohammadBagher Mahtabi, Zaynab Mahbooba , Ankit Saharan , Meysam Haghshenas |
| On-Site Speaker (Planned) |
Mojtaba Roshan |
| Abstract Scope |
CuNi30, a copper-nickel alloy composed of 70% copper and 30% nickel, is widely recognized for its high strength and excellent corrosion resistance in saltwater environments, making it ideal for marine applications. Despite its widespread use in cast and forged forms, limited research has addressed its performance when processed via laser powder bed fusion (LPBF). This study investigates the mechanical behavior, fatigue performance, and microstructural characteristics of LPBF-processed CuNi30 in both as-built and heat-treated states. Uniaxial tensile and fully reversed fatigue tests were conducted on vertically and horizontally printed specimens to evaluate the influence of build direction on the static and cyclic mechanical properties. Microstructural analysis revealed coarse columnar grains containing a combination of fine cellular substructures. Horizontally built specimens showed higher strength and fatigue resistance, but reduced ductility compared to vertical builds. This study provides valuable insights into the potential of LPBF CuNi30 for marine applications. |