Publication: Pre-deformation-transformation plasticity relationship during martensitic transformation
Program
Department
School College Institute
College of Engineering
KU-Authors
KU Authors
Co-Authors
Lambers, Hans -Gerd
Tschumak, Sergej
Maier, Hans Jürgen
Advisor
Publication Date
Language
Type
Embargo Status
Journal Title
Journal ISSN
Volume Title
item.page.alternative
Abstract
The role of pre-deformation temperature (T*) on the diffusionless martensitic phase transformation in a low alloy steel was investigated. The current results indicate that transformation plasticity strains at room temperature are often significantly underestimated in the case of combined pre-straining and superimposed stresses, if the transformation plasticity strain values obtained from separate experiments are simply superposed. However, when the difference between T* and the martensite start temperature increases no transformation plasticity strains are present following pre-deformation, and a prediction of the resulting transformation plasticity strains fora combined experiment from individual experiments is feasible. Overall, the current findings demonstrate that an accurate prediction of transformation plasticity strains strongly depends on T*. Thus, the current results emphasize the necessity of proper incorporation of T* while modelling complex production processes involving pre-deformation, superimposition of stresses and phase transformation. (c) 2009 Elsevier B.V. All rights reserved.
Source:
Publisher:
Elsevier Science Sa
Subject
Nanoscience, Nanotechnology, Materials science, Multidisciplinary, Metallurgy, Metallurgical engineering
Citation
Has Part
Source:
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
Book Series Title
Edition
DOI
10.1016/j.msea.2009.08.038