Hardness behavior of W. Nr. 1.7709 steel, oil quenched and tempered between 475°C and 575°CJohn Mantzoukas, Dimitris G. Papageorgiou, Carmen Medrea and Constantinos StergiouMATEC Web Conf., 349 (2021) 02005DOI: https://doi.org/10.1051/matecconf/202134902005