Microstructural analysis of electrochemical coated open-cell metal foams by EBSD and nanoindentation

Anne Jung, Stefan Diebels, Anjela Dimitrova Koblischka-Veneva, Jörg Schmauch, Afrooz Barnoush, Michael Rudolf Koblischka

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The texture and grain growth of Ni/Al-hybrid metal foams was investigated by electron backscatter diffraction (EBSD) and nanoindentation. Prior to the electrodeposition the aluminum foams have been pre-treated by a special pickling routine followed by an electroless deposition of zinc which prevents the dissolution of the aluminum foams in the acid electrolyte. Due to the typical columnar grain growth of electrodeposited nickel, the directly subsequent layer consist of more or less elongated grains that show a more or less strong texturing and a hardness that is already more than two times the hardness of the uncoated foam strut. But in contrast to bulk nickel and despite of the columnar grain growth due to the three-dimensional curved geometry of the struts there is a kind of structural induced isotropic grain orientation. Hence the superior mechanical properties of the Ni/Al-hybrid foams can be explained by the hard sleeve around the soft aluminum struts.

Original languageEnglish
Pages (from-to)15-20
Number of pages6
JournalAdvanced Engineering Materials
Volume16
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

Fingerprint

metal foams
Nanoindentation
nanoindentation
Electron diffraction
Foams
foams
struts
Metals
Struts
Aluminum
Grain growth
cells
diffraction
Nickel
aluminum
electrons
hardness
Hardness
nickel
sleeves

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Microstructural analysis of electrochemical coated open-cell metal foams by EBSD and nanoindentation. / Jung, Anne; Diebels, Stefan; Koblischka-Veneva, Anjela Dimitrova; Schmauch, Jörg; Barnoush, Afrooz; Koblischka, Michael Rudolf.

In: Advanced Engineering Materials, Vol. 16, No. 1, 01.01.2014, p. 15-20.

Research output: Contribution to journalArticle

@article{d4b94220553a403fa4f02a4819b8d842,
title = "Microstructural analysis of electrochemical coated open-cell metal foams by EBSD and nanoindentation",
abstract = "The texture and grain growth of Ni/Al-hybrid metal foams was investigated by electron backscatter diffraction (EBSD) and nanoindentation. Prior to the electrodeposition the aluminum foams have been pre-treated by a special pickling routine followed by an electroless deposition of zinc which prevents the dissolution of the aluminum foams in the acid electrolyte. Due to the typical columnar grain growth of electrodeposited nickel, the directly subsequent layer consist of more or less elongated grains that show a more or less strong texturing and a hardness that is already more than two times the hardness of the uncoated foam strut. But in contrast to bulk nickel and despite of the columnar grain growth due to the three-dimensional curved geometry of the struts there is a kind of structural induced isotropic grain orientation. Hence the superior mechanical properties of the Ni/Al-hybrid foams can be explained by the hard sleeve around the soft aluminum struts.",
author = "Anne Jung and Stefan Diebels and Koblischka-Veneva, {Anjela Dimitrova} and J{\"o}rg Schmauch and Afrooz Barnoush and Koblischka, {Michael Rudolf}",
year = "2014",
month = "1",
day = "1",
doi = "10.1002/adem.201300187",
language = "English",
volume = "16",
pages = "15--20",
journal = "Advanced Engineering Materials",
issn = "1438-1656",
publisher = "Wiley-VCH Verlag",
number = "1",

}

TY - JOUR

T1 - Microstructural analysis of electrochemical coated open-cell metal foams by EBSD and nanoindentation

AU - Jung, Anne

AU - Diebels, Stefan

AU - Koblischka-Veneva, Anjela Dimitrova

AU - Schmauch, Jörg

AU - Barnoush, Afrooz

AU - Koblischka, Michael Rudolf

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The texture and grain growth of Ni/Al-hybrid metal foams was investigated by electron backscatter diffraction (EBSD) and nanoindentation. Prior to the electrodeposition the aluminum foams have been pre-treated by a special pickling routine followed by an electroless deposition of zinc which prevents the dissolution of the aluminum foams in the acid electrolyte. Due to the typical columnar grain growth of electrodeposited nickel, the directly subsequent layer consist of more or less elongated grains that show a more or less strong texturing and a hardness that is already more than two times the hardness of the uncoated foam strut. But in contrast to bulk nickel and despite of the columnar grain growth due to the three-dimensional curved geometry of the struts there is a kind of structural induced isotropic grain orientation. Hence the superior mechanical properties of the Ni/Al-hybrid foams can be explained by the hard sleeve around the soft aluminum struts.

AB - The texture and grain growth of Ni/Al-hybrid metal foams was investigated by electron backscatter diffraction (EBSD) and nanoindentation. Prior to the electrodeposition the aluminum foams have been pre-treated by a special pickling routine followed by an electroless deposition of zinc which prevents the dissolution of the aluminum foams in the acid electrolyte. Due to the typical columnar grain growth of electrodeposited nickel, the directly subsequent layer consist of more or less elongated grains that show a more or less strong texturing and a hardness that is already more than two times the hardness of the uncoated foam strut. But in contrast to bulk nickel and despite of the columnar grain growth due to the three-dimensional curved geometry of the struts there is a kind of structural induced isotropic grain orientation. Hence the superior mechanical properties of the Ni/Al-hybrid foams can be explained by the hard sleeve around the soft aluminum struts.

UR - http://www.scopus.com/inward/record.url?scp=84893813378&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893813378&partnerID=8YFLogxK

U2 - 10.1002/adem.201300187

DO - 10.1002/adem.201300187

M3 - Article

VL - 16

SP - 15

EP - 20

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

SN - 1438-1656

IS - 1

ER -