B. Fischer and A. Neidel (2014). Intergranular Corrosion in Retaining Rings Made of X39CrMo17-1 and X39Cr13. Practical Metallography: Vol. 51, No. 6, pp. 463-474. doi: 10.3139/147.110248 © Carl Hanser Verlag GmbH & Co. KG ISSN 0032-678X