Abstract
For the first time, additive manufacturing was used to obtain a strong joint (bonding strength >200 MPa) between stainless steel and Ti-6Al-4V using a V interlayer. The V interlayer applied via solid-state joining prevented the formation of brittle intermetallic phases more effectively than a V interlayer deposited by a liquid-state process. The microstructure and strength of the joint interface depended on the laser power and scan speed. The joint strength decreased with increasing annealing time, especially after 4 and 24 h, demonstrating the presence of the Fe-V-Cr σ-phase.
| Original language | English |
|---|---|
| Pages (from-to) | 259-266 |
| Number of pages | 8 |
| Journal | Materials Research Letters |
| Volume | 7 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 3 2019 |
| Externally published | Yes |
Funding
This work wassupported by agrant from the NationalResearch Foundation of Korea (NRF) funded by the Korean government (MSIT) (No. 2018R1A2B6004490) and partly by the Fundamental Research Program (PNK5570) of the Korea Institute of Materials Science. This work was supported by a grant from the National Research Foundation of Korea (NRF) funded by the Korean government (MSIT) (No. 2018R1A2B6004490) and partly by the Fundamental Research Program (PNK5570) of the Korea Institute of Materials Science.
Keywords
- Additive manufacturing
- Ti-6Al-4V
- bonding strength
- stainless steel
- σ-phase