A generalised hot cracking criterion for nickel-based superalloys additively manufactured by electron beam melting

• Main Authors: Chandra, Shubham, Tan, Xipeng, Narayan, R. Lakshmi, Wang, Chengcheng, Tor, Shu Beng, Seet, Gerald
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering; Additive Manufacturing; Electron Beam Melting
• Online Access: https://hdl.handle.net/10356/148258
• Institution: Nanyang Technological University

The influences of microstructure and solidification parameters on the hot cracking behaviour of an additively manufactured Ni-based superalloy via selective electron beam melting (SEBM) have been investigated. Severe intergranular hot cracking is found to occur at grain boundaries (GBs) in the SEBM-...