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

摘要:

文章预览

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.

信息:

期刊:

编辑:

A. Saimoto and M.H. Aliabadi

页数:

741-744

DOI:

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

引用:

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

上线时间:

November 2010

输出:

价格:

$35.00

[1] T.R. Thomason, A. Brownrigg: The effect of inclusions on the cold formability, in: Focal Point - Inclusions in Steel, 2, Vol. 2, No. 2, pp.118-125, (1979).

[2] A.S. Korhonen: Localization of plastic flow and ductile fracture in metals, in: Acta Polytechnica Scandinavica, Vol. 144, Helsinki, (1980).

[3] J. Gurland: Oberservations on the fracture of cementite particles in a spheroidized 1. 05 % C steel deformed at room temperature, in: Acta Metallurgica, Vol. 20, (1972).

DOI: 10.1016/0001-6160(72)90102-2

[4] N.L. Dung: Ein Beitrag zur Untersuchung der Rißentstehung in der Kaltmassivumformung metallischer Werkstoffe. VDI-Verlag, Nr. 175, Reihe 2, (1989).

[5] U. Zitz: Abschätzung der Rißentstehung bei der Kaltumformung. Dissertation, Aachen University, Germany, (1995).

[6] J.R. Rice, D.M. Tracey: On the ductile enlargement of voids in triaxial stress fields, in: Journal of Mechanics and Physics of Solids, Vol. 17, pp.201-217, (1969).

DOI: 10.1016/0022-5096(69)90033-7

[7] F. Klocke, A. Timmer, P. Mattfeld: Prediction of formability, in: Neuere Entwicklungen in der Massivumformung. Fellbach: MAT INFO Werkstoff-Informationsgesellschaft mbH, pp.121-141, (2009).

为了查看相关信息, 需 Login.