Microstructural evolution of AA7449 aerospace alloy refined by intensive shearing

Many aerospace alloys are sensitive to their composition thus cannot be chemically grain refined. In addition, only 1% grain refiners can act as nuclei for refining the structure. In this paper, physical refinement by intensive shearing above liquidus as an alternative technique will be investigated...

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Bibliographic Details
Published inMetals and materials international Vol. 18; no. 5; pp. 777 - 782
Main Authors Haghayeghi, R, Nastac, L
Format Journal Article
LanguageEnglish
Published Seoul Springer Nature B.V 01.10.2012
대한금속·재료학회
Subjects
Aerospace
Aircraft components
Evolution
Grain refinement
Microstructure
Refining
Shearing
Spacecraft components
재료공학
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Summary:Many aerospace alloys are sensitive to their composition thus cannot be chemically grain refined. In addition, only 1% grain refiners can act as nuclei for refining the structure. In this paper, physical refinement by intensive shearing above liquidus as an alternative technique will be investigated for AA7449 aerospace alloy. The results can open a new gateway for aerospace industry for refining their microstructure.[PUBLICATION ABSTRACT]
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G704-000797.2012.18.5.006
ISSN:1598-9623
2005-4149
DOI:10.1007/s12540-012-5005-8