@article{lima_silva_nascimento_silva_2022,  title={Effects of Sodium Octaborate on AISI 4140 Steel Machined by Die-sinking EDM},  volume={25},  ISSN={1516-1439},  url={https://doi.org/10.1590/1980-5373-MR-2022-0309},  DOI={10.1590/1980-5373-MR-2022-0309},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Lima, Daniel de Moraes and Silva, Sinval Pedroso da and Nascimento, Claudinei Alfredo do and Silva, Ernane Rodrigues da},  year={2022},  pages={e20220309} }