English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

A combinatorial study of the effect of Al and Cr additions on the mechanical, physical and corrosion properties of Fe

MPS-Authors
/persons/resource/persons125400

Springer,  Hauke
Sustainable Materials Science and Technology, Partner Group with RWTH Aachen University, Interdepartmental and Partner Groups, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Institut für Bildsame Formgebung, RWTH Aachen University, Intzestr. 10, 52072 Aachen, Germany;
Combinatorial Metallurgy and Processing, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

/persons/resource/persons136263

Baron,  Christian
Combinatorial Metallurgy and Processing, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

/persons/resource/persons125346

Rohwerder,  Michael
Corrosion, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Springer, H., Baron, C., Tanure, L., & Rohwerder, M. (2021). A combinatorial study of the effect of Al and Cr additions on the mechanical, physical and corrosion properties of Fe. Materials Today Communications, 29: 102947. doi:10.1016/j.mtcomm.2021.102947.


Cite as: https://hdl.handle.net/21.11116/0000-0009-7B99-1
Abstract
The effects of Al and Cr additions on the mechanical, physical and corrosion resistance of Fe were investigated in a combinatorial approach on a total of 42 alloys with compositions ranging from 0 to 10 wt of Al together with 0–12 wt of Cr (in increments of 2 wt). All alloys were subjected to hardness, tensile, density, Young's modulus and salt-spray testing, along with structural analysis using x-ray diffraction. Selected alloys were additionally analysed with scanning electron microscopy (microstructure) and x-ray photoelectron spectroscopy (corroded surface). Increasing Al additions linearly reduced both density and stiffness, and led to a sudden strengthening above 2 wt and embrittlement above 8 wt. Cr additions counteracted the effects of Al on the mechanical and physical properties, and about 4–8 wt of Cr could be substituted by 8–10 wt Al for similar protective effects against wet corrosion. A decrease in Cr and increase in Al concentration in the bulk material results in a similar trend within the passive layer, preserving a significant degree of passivity. Evaluation of the comprehensive data by desirability functions allowed to identify most relevant compositions as the basis for the design of lightweight corrosion resistant steels. © 2021 Elsevier Ltd