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

Abstract:

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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.

Info:

Periodical:

Key Engineering Materials (Volumes 452-453)

Edited by:

A. Saimoto and M.H. Aliabadi

Pages:

741-744

DOI:

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

Citation:

F. Klocke et al., "Investigation of Surface Crack Types under Axial Compression Loading for a Case-Hardening Steel", Key Engineering Materials, Vols. 452-453, pp. 741-744, 2011

Online since:

November 2010

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Price:

$35.00

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