In situ martensitic phase reinforced Fe-Nb-Ni-Mn ultrafine composite with enhanced mechanical properties

T. E. Kim, J. M. Park, Uta Kühn, J. Eckert, W. T. Kim, D. H. Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An in situ formed martensitic dendrite reinforced Fe-11Nb-10Ni-5Mn ultrafine composite was developed by copper mold casting. This new class of ultrafine composite composed of micrometer-scale martensitic α'-Fe dendrites and ultrafine-scale alternating eutectics exhibits a high fracture strength of 1.6. GPa and a large compressive plasticity up to 10.5%. These excellent mechanical properties originate from the precipitation of the martensitic α'-Fe dendrites containing numerous nanometer-scale laths which are effective to generate multiple shear banding and restrict the rapid propagation of localized shear bands.

Original languageEnglish
Pages (from-to)51-54
Number of pages4
JournalMaterials Science and Engineering A
Volume531
DOIs
Publication statusPublished - 2012 Jan 1

Fingerprint

dendrites
mechanical properties
Mechanical properties
Dendrites (metallography)
composite materials
Shear bands
Composite materials
Eutectics
shear
Plasticity
Fracture toughness
Casting
fracture strength
Copper
plastic properties
eutectics
micrometers
copper
propagation
Ultrafine

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "An in situ formed martensitic dendrite reinforced Fe-11Nb-10Ni-5Mn ultrafine composite was developed by copper mold casting. This new class of ultrafine composite composed of micrometer-scale martensitic α'-Fe dendrites and ultrafine-scale alternating eutectics exhibits a high fracture strength of 1.6. GPa and a large compressive plasticity up to 10.5{\%}. These excellent mechanical properties originate from the precipitation of the martensitic α'-Fe dendrites containing numerous nanometer-scale laths which are effective to generate multiple shear banding and restrict the rapid propagation of localized shear bands.",
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In situ martensitic phase reinforced Fe-Nb-Ni-Mn ultrafine composite with enhanced mechanical properties. / Kim, T. E.; Park, J. M.; Kühn, Uta; Eckert, J.; Kim, W. T.; Kim, D. H.

In: Materials Science and Engineering A, Vol. 531, 01.01.2012, p. 51-54.

Research output: Contribution to journalArticle

TY - JOUR

T1 - In situ martensitic phase reinforced Fe-Nb-Ni-Mn ultrafine composite with enhanced mechanical properties

AU - Kim, T. E.

AU - Park, J. M.

AU - Kühn, Uta

AU - Eckert, J.

AU - Kim, W. T.

AU - Kim, D. H.

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