Cornelius Temmel, Birger Karlsson, Ketil Torresvoll, and Christopher Fallqvist (2009). Investigation on Manganese Sulfide Inclusion Sizes in 50CrMo4 Steels by means of Fractography, Micrograph Analysis and Immersion Ultrasound. Practical Metallography: Vol. 46, No. 3, pp. 123-136. doi: 10.3139/147.110004 © Carl Hanser Verlag GmbH & Co. KG ISSN 0032-678X