Abstract
The interfacial structure and pore formation mechanism of V, which was laser cladded under various conditions with 17-4PH alloys on a Ti-6Al-4V plate, were studied using optical and scanning electron microscopy and an electron probe microanalyzer. Pores were formed in the interfacial regions of the cladded V. Moreover, upon high energy input, more prominent pores were observed, which was confirmed by the effect of V oxide generated during laser cladding. Cracks and delamination occurred when the 17-4PH alloy was additionally cladded due to pore generation owing to the high energy input used for V cladding.
| Original language | English |
|---|---|
| Article number | 105671 |
| Journal | International Journal of Refractory Metals and Hard Materials |
| Volume | 101 |
| DOIs | |
| State | Published - Dec 2021 |
| Externally published | Yes |
Funding
This work was supported by the Industrial Technology Innovation Program ( 20013122 , Development of manufacturing technology for casting mold for 3D cooling channels to improve the quality and productivity of automobile parts) funded by the Ministry of Trade, Industry and Energy (MOTIE, Korea) . This work was also supported by the Korea Institute for Advancement of Technology (KIAT) grant, funded by the Republic of Korea Ministry of Trade, Industry and Energy (MOTIE) ( P0002019 , Human Resource Development Program for Industrial Innovation).
Keywords
- Evaporation
- Laser cladding
- Pore
- Ti-6Al-4V
- Vanadium