Investigation of surface crack types under axial compression loading for a case-hardening steel

被引：2

作者：

Klocke, F. ^{[1
]}

Timmer, A. ^{[1
]}

Schongen, F. ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Lab Machine Tools & Prod Engn, D-52074 Aachen, Germany

来源：

ADVANCES IN FRACTURE AND DAMAGE MECHANICS IX | 2011年 / 452-453卷

关键词：

surface crack types; longitudinal cracks; shear cracks;

D O I：

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

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：741 / 744

页数：4

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