The effect of pre-ageing temperature and retrogression heating rate on the strength and corrosion behaviour of AA7150

Daokui Xu, Nick Birbilis, Paul Rometsch

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The effects of processing condition variations in the retrogression and re-ageing (RRA) treatment of AA7150 have been investigated. The results reveal that the corrosion resistance and strength of RRA-treated samples are sensitive to the pre-ageing temperature and retrogression heating rate. With an intermediate pre-ageing temperature of 60 °C and a slow retrogression heating rate of 5 °C/min, RRA-treated samples can be tailored towards a good combination of both corrosion resistance and strength, owing to a smaller potential difference between grain-boundary precipitates and the matrix, and a larger volume fraction of strengthening precipitates in the matrix.
Original languageEnglish
Pages (from-to)17 - 25
Number of pages9
JournalCorrosion Science
Volume54
DOIs
Publication statusPublished - 2012

Cite this

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title = "The effect of pre-ageing temperature and retrogression heating rate on the strength and corrosion behaviour of AA7150",
abstract = "The effects of processing condition variations in the retrogression and re-ageing (RRA) treatment of AA7150 have been investigated. The results reveal that the corrosion resistance and strength of RRA-treated samples are sensitive to the pre-ageing temperature and retrogression heating rate. With an intermediate pre-ageing temperature of 60 °C and a slow retrogression heating rate of 5 °C/min, RRA-treated samples can be tailored towards a good combination of both corrosion resistance and strength, owing to a smaller potential difference between grain-boundary precipitates and the matrix, and a larger volume fraction of strengthening precipitates in the matrix.",
author = "Daokui Xu and Nick Birbilis and Paul Rometsch",
year = "2012",
doi = "10.1016/j.corsci.2011.08.042",
language = "English",
volume = "54",
pages = "17 -- 25",
journal = "Corrosion Science",
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publisher = "Elsevier",

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The effect of pre-ageing temperature and retrogression heating rate on the strength and corrosion behaviour of AA7150. / Xu, Daokui; Birbilis, Nick; Rometsch, Paul.

In: Corrosion Science, Vol. 54, 2012, p. 17 - 25.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The effect of pre-ageing temperature and retrogression heating rate on the strength and corrosion behaviour of AA7150

AU - Xu, Daokui

AU - Birbilis, Nick

AU - Rometsch, Paul

PY - 2012

Y1 - 2012

N2 - The effects of processing condition variations in the retrogression and re-ageing (RRA) treatment of AA7150 have been investigated. The results reveal that the corrosion resistance and strength of RRA-treated samples are sensitive to the pre-ageing temperature and retrogression heating rate. With an intermediate pre-ageing temperature of 60 °C and a slow retrogression heating rate of 5 °C/min, RRA-treated samples can be tailored towards a good combination of both corrosion resistance and strength, owing to a smaller potential difference between grain-boundary precipitates and the matrix, and a larger volume fraction of strengthening precipitates in the matrix.

AB - The effects of processing condition variations in the retrogression and re-ageing (RRA) treatment of AA7150 have been investigated. The results reveal that the corrosion resistance and strength of RRA-treated samples are sensitive to the pre-ageing temperature and retrogression heating rate. With an intermediate pre-ageing temperature of 60 °C and a slow retrogression heating rate of 5 °C/min, RRA-treated samples can be tailored towards a good combination of both corrosion resistance and strength, owing to a smaller potential difference between grain-boundary precipitates and the matrix, and a larger volume fraction of strengthening precipitates in the matrix.

UR - http://dx.doi.org/10.1016/j.corsci.2011.08.042

U2 - 10.1016/j.corsci.2011.08.042

DO - 10.1016/j.corsci.2011.08.042

M3 - Article

VL - 54

SP - 17

EP - 25

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

ER -