| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Eliminating Micro-cracking in Inconel 713ELC Fabricated by a Powder-bed-fusion Additive Manufacturing with Electron Beam |
| Author(s) |
Yuchao Lei, Kenta Aoyagi, Dong-Soo Kang, Kosuke Kuwabara, Kinya Aota, Akihiko Chiba |
| On-Site Speaker (Planned) |
Yuchao Lei |
| Abstract Scope |
Inconel 713ELC (IN713-ELC) is one of γ’ precipitate strengthened superalloy, which exhibits excellent resistance to mechanical degradation at a temperature range of 650 ~ 980 °C. IN713-ELC is usually manufactured by casting due to its poor hot workability. Recently, producing IN713-ELC parts by electron beam melting (EBM), one of the additive manufacturing technologies, has been of attractiveness in the industry because EBM can provide near-net shape metal parts. In this study, through an efficient method for optimizing process parameters based on support vector machine (SVM) [1], samples with superior mechanical properties have been manufactured. Moreover, parameters leading to crack-free samples were successfully extracted from SVM predicted process map. Finally, the cracking mechanism was discussed based on the comprehensive study by comparing the cracked sample, crack-free sample, and Inconel 718 with small cracking susceptibility. [1] K. Aoyagi, et al., Additive Manufacturing, 27 (2019) 353-362. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |