@misc{reimann_keyhole_closure_2016, 
author={Reimann, M., Gartner, T., Suhuddin, U., Goebel, J., dos Santos, J.F.},
title={Keyhole closure using friction spot welding in aluminum alloy 6061–T6},
year={2016},
howpublished = {journal article},
doi = {https://doi.org/10.1016/j.jmatprotec.2016.05.013},
abstract = {The experimental results demonstrate that the proposed method is suitable to refill keyholes in AA 6061–T6 and produce flawless joints with a superior surface appearance. The welds show high strength and hardness, especially when heat treatments are applied. The high strength of the welds were achieved at the expense of elongation at fracture, which is caused by a strengthened zone in the center of the welds.},
note = {Online available at: \url{https://doi.org/10.1016/j.jmatprotec.2016.05.013} (DOI). Reimann, M.; Gartner, T.; Suhuddin, U.; Goebel, J.; dos Santos, J.: Keyhole closure using friction spot welding in aluminum alloy 6061–T6. Journal of Materials Processing Technology. 2016. vol. 237, 12-18. DOI: 10.1016/j.jmatprotec.2016.05.013}}