| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
| Presentation Title |
Stress Relaxation Testing to Assess the Creep Performance of Inoculated Alloy 230 Processed with Laser Powder Bed Fusion |
| Author(s) |
Daniel McConville, Ben Rafferty, Kevin Eckes, Jeremy Iten, Amy Clarke, Jonah Klemm-Toole |
| On-Site Speaker (Planned) |
Daniel McConville |
| Abstract Scope |
Alloy 230 is a solid solution strengthened Ni-based alloy known to be weldable with arc processes but susceptible to solidification cracking in laser beam powder bed fusion (PBF-LB). The use of inoculation, however, results in grain refinement and the elimination of solidification cracking. The addition of reactive inoculant particles also leads to greater carbide precipitation, which when combined with grain refinement and crack elimination results in creep behavior comparable to that of wrought plate. In this presentation, we describe the use of stress relaxation and constant load testing to evaluate the creep performance of Alloy 230. We demonstrate the potential for this combination of testing to assess additively manufactured Ni-based superalloys, allowing for rapid material qualification for high temperature structural applications. |