Evaluation of elastic modulus and hardness of Fe–Al base intermetallics by nano-indentation techniques

Nanoindentation has been used to study Young's modulus and hardness of Fe–Al alloys with Al contents from 22 to 47 at%, and the influence of Cr additions to near Fe3Al alloys. Materials are examined in the quenched state and the well-annealed state with, respectively, relatively poor order with...

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Bibliographic Details
Published inIntermetallics Vol. 38; pp. 1 - 3
Main Authors Frutos, E., Morris, D.G., Muñoz-Morris, M.A.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.07.2013
Subjects
A. Iron aluminides (based on Fe3Al and FeAl)
Alloys
B. Elastic properties
B. Mechanical properties at ambient temperature
Chromium
Ferrous alloys
Hardness
Intermetallic compounds
Intermetallics
Iron aluminides
Nanostructure
Vacancies
A. Iron aluminides (based on Fe3Al and FeAl)
B. Mechanical properties at ambient temperature
B. Elastic properties
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Summary:Nanoindentation has been used to study Young's modulus and hardness of Fe–Al alloys with Al contents from 22 to 47 at%, and the influence of Cr additions to near Fe3Al alloys. Materials are examined in the quenched state and the well-annealed state with, respectively, relatively poor order with retained thermal vacancies, and good order with few vacancies. Significant changes occur in both modulus and hardness, affected by Al content, Cr addition and heat treatment. These changes are discussed in terms of state of order, possible role of magnetisation, and vacancies.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0966-9795
1879-0216
DOI:10.1016/j.intermet.2013.02.012