The authors thank the German Research Foundation (DFG) for the financial support of the investigations in the Collaborative Research Center 920, subprojects C05 and C04.
Effect of Filter Coating on the Quasi-Static and Cyclic Mechanical Properties of a G42CrMo4 Casting†
Article first published online: 6 SEP 2013
© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Engineering Materials
Special Issue: Multi-Functional Filters for Metal Melt Filtration
Volume 15, Issue 12, pages 1216–1223, December 2013
How to Cite
Henschel, S., Krewerth, D., Ballani, F., Weidner, A., Krüger, L., Biermann, H., Emmel, M. and Aneziris, C. G. (2013), Effect of Filter Coating on the Quasi-Static and Cyclic Mechanical Properties of a G42CrMo4 Casting. Adv. Eng. Mater., 15: 1216–1223. doi: 10.1002/adem.201300125
- Issue published online: 5 DEC 2013
- Article first published online: 6 SEP 2013
- Manuscript Accepted: 5 AUG 2013
- Manuscript Received: 8 APR 2013
- German Research Foundation (DFG)
In this paper, the effect of a mullite coating on a carbon-bonded alumina filter used in steel melt filtration on the mechanical properties of the cast steel G42CrMo4 (1.7231) at both quasi-static and cyclic loading is presented. The investigations cover quasi-static tensile tests at different temperatures. Additionally, cyclic tests in high-cycle fatigue (HCF) and very high-cycle fatigue (VHCF) regimes were performed. Fracture surfaces as well as cross-sections are examined by scanning electron microscopy and light microscopy to determine the non-metallic inclusions responsible for failure. In comparison to the uncoated filter, a mullite coating on the filter leads to a deterioration of deformation characteristics and fatigue lifetime of the cast steel. This effect is attributed to a higher amount of large non-metallic inclusions, which were not retained by the coated metal melt filter.