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Title: Deformation and strain hardening of different steels in impact dominated systems

Abstract

Strain hardening is a common technique to exploit the full potential of materials in diverse applications. Single impact studies were performed to evaluate work hardening effects of different steels, correlated to their deformation at different energy and momentum levels. Three different steels were examined regarding their forming behavior and their tendency to strain harden in impact loading conditions, revealing different intensities of hardness increase, deformation and coinciding microstructural changes. Detailed studies in the deformed zone such as micro hardness mappings were performed to reveal the materials hardness increase in the deformed zones. Additionally high resolution scanning electron microscopy (HRSEM) supported by electron backscatter diffraction (EBSD) was used to determine microstructural changes. Results indicate, that the influence of different velocities/strain rates at constant energy levels cannot be neglected for the strain hardening behavior of steels and provide data for a better control of the hardness increase in impact dominated materials fabrication operations. - Highlights: • Deformation and strain hardening behaviour of three different steels. • Influence of impact energies and momenta on the strain hardening. • Hardness increase and depth controllable by momentum and energy.

Authors:
 [1];  [2]
  1. Aerospace and Advanced Composites GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt (Austria)
  2. AC"2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt (Austria)
Publication Date:
OSTI Identifier:
22340351
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 90; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BACKSCATTERING; DEFORMATION; ELECTRON DIFFRACTION; ELECTRONS; ENERGY LEVELS; HARDNESS; MICROSTRUCTURE; SCANNING ELECTRON MICROSCOPY; STEELS; STRAIN HARDENING

Citation Formats

Rojacz, H., E-mail: rojacz@ac2t.at, Mozdzen, G., and Winkelmann, H. Deformation and strain hardening of different steels in impact dominated systems. United States: N. p., 2014. Web. doi:10.1016/J.MATCHAR.2014.01.020.
Rojacz, H., E-mail: rojacz@ac2t.at, Mozdzen, G., & Winkelmann, H. Deformation and strain hardening of different steels in impact dominated systems. United States. https://doi.org/10.1016/J.MATCHAR.2014.01.020
Rojacz, H., E-mail: rojacz@ac2t.at, Mozdzen, G., and Winkelmann, H. 2014. "Deformation and strain hardening of different steels in impact dominated systems". United States. https://doi.org/10.1016/J.MATCHAR.2014.01.020.
@article{osti_22340351,
title = {Deformation and strain hardening of different steels in impact dominated systems},
author = {Rojacz, H., E-mail: rojacz@ac2t.at and Mozdzen, G. and Winkelmann, H.},
abstractNote = {Strain hardening is a common technique to exploit the full potential of materials in diverse applications. Single impact studies were performed to evaluate work hardening effects of different steels, correlated to their deformation at different energy and momentum levels. Three different steels were examined regarding their forming behavior and their tendency to strain harden in impact loading conditions, revealing different intensities of hardness increase, deformation and coinciding microstructural changes. Detailed studies in the deformed zone such as micro hardness mappings were performed to reveal the materials hardness increase in the deformed zones. Additionally high resolution scanning electron microscopy (HRSEM) supported by electron backscatter diffraction (EBSD) was used to determine microstructural changes. Results indicate, that the influence of different velocities/strain rates at constant energy levels cannot be neglected for the strain hardening behavior of steels and provide data for a better control of the hardness increase in impact dominated materials fabrication operations. - Highlights: • Deformation and strain hardening behaviour of three different steels. • Influence of impact energies and momenta on the strain hardening. • Hardness increase and depth controllable by momentum and energy.},
doi = {10.1016/J.MATCHAR.2014.01.020},
url = {https://www.osti.gov/biblio/22340351}, journal = {Materials Characterization},
issn = {1044-5803},
number = ,
volume = 90,
place = {United States},
year = {Tue Apr 01 00:00:00 EDT 2014},
month = {Tue Apr 01 00:00:00 EDT 2014}
}