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  Combinatorial screening of the microstructure–property relationships for Fe–B–X stiff, light, strong and ductile steels

Baron, C., Springer, H., & Raabe, D. (2016). Combinatorial screening of the microstructure–property relationships for Fe–B–X stiff, light, strong and ductile steels. Materials and Design, 112, 131-139. doi:10.1016/j.matdes.2016.09.065.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-B292-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-B293-F
Genre: Journal Article

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 Creators:
Baron, Christian1, Author              
Springer, Hauke2, Author              
Raabe, Dierk1, Author              
Affiliations:
1Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              
2Combinatorial Metallurgy and Processing, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863386              

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Free keywords: Borides; Density (specific gravity); Ductility; Elastic moduli; Metallic matrix composites; Microstructure; Molybdenum; Niobium; Steel; Stiffness; Tantalum; Tensile strength; Tungsten; Zirconium, Combinatorial screenings; Lightweight design; Mechanical and physical properties; Mechanical performance; Micro-structural properties; Spherical morphologies; Strength; Strength and ductilities, Alloy steel
 Abstract: We systematically screened the mechanical, physical and microstructural properties of the alloy systems Fe–10 B–5 X (at.; X = Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W), in order to identify novel metal matrix composite steels as next generation lightweight materials. The alloys were synthesised and processed by bulk liquid metallurgical techniques, and subsequently analysed for their mechanical and physical properties (i.e. Young's modulus, density, tensile strength and ductility) as well their microstructure and constitution. From the wide variety of observed boride phases and microstructures and resultant different properties, Cr and Zr additions were found to be most effective. Cr qualifies well as the high fraction of M2B borides of spherical morphology allows achieving a similar stiffness/density ratio and mechanical performance as the reference Ti alloyed materials, but at substantially reduced alloy costs. Zr blended composites on the other hand are softer and less ductile, but the alignment of spiky ZrB2 particles during swaging led to a much higher – though most probably anisotropic – specific modulus. Consequences and recommendations for future alloy and processing design are outlined and discussed. © 2016 Elsevier Ltd

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Language(s): eng - English
 Dates: 2016-12-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.matdes.2016.09.065
BibTex Citekey: Baron2016131
 Degree: -

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Title: Materials and Design
  Other : Materials & Design
  Abbreviation : Mater. Des.
Source Genre: Journal
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Publ. Info: Reigate, Surrey, Eng. : Elsevier
Pages: - Volume / Issue: 112 Sequence Number: - Start / End Page: 131 - 139 Identifier: ISSN: 0264-1275
CoNE: /journals/resource/954926234428