Investigation of Surface Crack Types under Axial Compression Loading for a Case-Hardening Steel

Fritz Klocke; A. Timmer; F. Schongen

doi:10.4028/www.scientific.net/KEM.452-453.741

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 452-453Investigation of Surface Crack Types under Axial...

Investigation of Surface Crack Types under Axial Compression Loading for a Case-Hardening Steel

Abstract:

During cold-forming operations the formability of the materials can be reached due to the low process temperature, leading to crack initiation. For the investigated case-hardening steel 16MnCrS5 longitudinal cracks and shear cracks are identified as the main crack types. The evolution of both crack types is determined by scanning electron microscope (SEM)-investigations and a simplified finite element method (FEM)-model. The results reveal that the initiation point of shear cracks is located at the surface. In contrast thereto longitudinal cracks emanate from second phase particles in the rim zone.

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Periodical:

Key Engineering Materials (Volumes 452-453)

Pages:

741-744

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.452-453.741

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Online since:

November 2010

Authors:

Fritz Klocke, A. Timmer, F. Schongen

Keywords:

Longitudinal Crack, Shear Cracks, Surface Crack Types

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