Structural changes in the lamellar eutectic Al-Al2Cu during heat treatment
X-ray diffraction techniques are used to study the structural changes in the lamellar eutectic Al-Al 2 Cu under various heat treatments. Only α-phase lamellae show changes in the structure during ageing after quenching from 520°C. The observed phase changes follow practically the same sequence as in...
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| Veröffentlicht in: | Philosophical magazine (London, England : 1945) England : 1945), 1974-10, Vol.30 (4), p.691-703 |
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| container_title | Philosophical magazine (London, England : 1945) |
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| creator | Banchik, Abraham D. Bonfiglioli, Alberto F. |
| description | X-ray diffraction techniques are used to study the structural changes in the lamellar eutectic Al-Al
2
Cu under various heat treatments. Only α-phase lamellae show changes in the structure during ageing after quenching from 520°C. The observed phase changes follow practically the same sequence as in Al-rich Al-Cu metastable solid solution, namely: GP zones→ θ′ → θ″ → θ. However, in completely aged-as well as in slow cooled samples-θ-phase particles do not precipitate in α-phase lamellae but coherently with θ-phase lamellae.
Comparison of hardness variations and X-ray results during ageing at 165°C shows that the maximum hardness corresponds to maximum development of θ″-phase, in agreement with previous observations made by other authors in Al-4-4, 5% Cu metastable solid solution. |
| doi_str_mv | 10.1080/14786437408207228 |
| format | Article |
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Cu under various heat treatments. Only α-phase lamellae show changes in the structure during ageing after quenching from 520°C. The observed phase changes follow practically the same sequence as in Al-rich Al-Cu metastable solid solution, namely: GP zones→ θ′ → θ″ → θ. However, in completely aged-as well as in slow cooled samples-θ-phase particles do not precipitate in α-phase lamellae but coherently with θ-phase lamellae.
Comparison of hardness variations and X-ray results during ageing at 165°C shows that the maximum hardness corresponds to maximum development of θ″-phase, in agreement with previous observations made by other authors in Al-4-4, 5% Cu metastable solid solution.</description><identifier>ISSN: 0031-8086</identifier><identifier>DOI: 10.1080/14786437408207228</identifier><language>eng</language><publisher>London: Taylor & Francis Group</publisher><ispartof>Philosophical magazine (London, England : 1945), 1974-10, Vol.30 (4), p.691-703</ispartof><rights>Copyright Taylor & Francis Group, LLC 1974</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27867,27922,27923</link.rule.ids></links><search><creatorcontrib>Banchik, Abraham D.</creatorcontrib><creatorcontrib>Bonfiglioli, Alberto F.</creatorcontrib><title>Structural changes in the lamellar eutectic Al-Al2Cu during heat treatment</title><title>Philosophical magazine (London, England : 1945)</title><description>X-ray diffraction techniques are used to study the structural changes in the lamellar eutectic Al-Al
2
Cu under various heat treatments. Only α-phase lamellae show changes in the structure during ageing after quenching from 520°C. The observed phase changes follow practically the same sequence as in Al-rich Al-Cu metastable solid solution, namely: GP zones→ θ′ → θ″ → θ. However, in completely aged-as well as in slow cooled samples-θ-phase particles do not precipitate in α-phase lamellae but coherently with θ-phase lamellae.
Comparison of hardness variations and X-ray results during ageing at 165°C shows that the maximum hardness corresponds to maximum development of θ″-phase, in agreement with previous observations made by other authors in Al-4-4, 5% Cu metastable solid solution.</description><issn>0031-8086</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1974</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNplkEtLxDAUhbNQcBz9Ae4Crqt5NTcDbkrxyYALdV3SNJ12SFPNA_Hf22HcufkuBw7ncg5CV5TcUKLILRWgpOAgiGIEGFMnaEUIp4UiSp6h8xj3B1lSvkIvbylkk3LQDptB-52NePQ4DRY7PVnndMA2J2vSaHDlisqxOuMuh9Hv8GB1wiksnKxPF-i01y7ay7-7Rh8P9-_1U7F9fXyuq20xMi5SoWkpWmDStKKHTkMrFVeSCQDLhF0oAYjp2IIWtAJpDn16BZRbUULP1-j6mPsZ5q9sY2r2cw5-edlQTjZiydqoxXV3dI2-n8Okv-fguibpHzeHPmhvxthwSprDYs2_xfgvd8dfHA</recordid><startdate>19741001</startdate><enddate>19741001</enddate><creator>Banchik, Abraham D.</creator><creator>Bonfiglioli, Alberto F.</creator><general>Taylor & Francis Group</general><general>Taylor and Francis</general><scope>GYTRX</scope><scope>HAGHG</scope><scope>K30</scope><scope>PAAUG</scope><scope>PAWHS</scope><scope>PAWZZ</scope><scope>PAXOH</scope><scope>PBHAV</scope><scope>PBQSW</scope><scope>PBYQZ</scope><scope>PCIWU</scope><scope>PCMID</scope><scope>PCZJX</scope><scope>PDGRG</scope><scope>PDWWI</scope><scope>PETMR</scope><scope>PFVGT</scope><scope>PGXDX</scope><scope>PIHIL</scope><scope>PISVA</scope><scope>PJCTQ</scope><scope>PJTMS</scope><scope>PLCHJ</scope><scope>PMHAD</scope><scope>PNQDJ</scope><scope>POUND</scope><scope>PPLAD</scope><scope>PQAPC</scope><scope>PQCAN</scope><scope>PQCMW</scope><scope>PQEME</scope><scope>PQHKH</scope><scope>PQMID</scope><scope>PQNCT</scope><scope>PQNET</scope><scope>PQSCT</scope><scope>PQSET</scope><scope>PSVJG</scope><scope>PVMQY</scope><scope>PZGFC</scope></search><sort><creationdate>19741001</creationdate><title>Structural changes in the lamellar eutectic Al-Al2Cu during heat treatment</title><author>Banchik, Abraham D. ; 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2
Cu under various heat treatments. Only α-phase lamellae show changes in the structure during ageing after quenching from 520°C. The observed phase changes follow practically the same sequence as in Al-rich Al-Cu metastable solid solution, namely: GP zones→ θ′ → θ″ → θ. However, in completely aged-as well as in slow cooled samples-θ-phase particles do not precipitate in α-phase lamellae but coherently with θ-phase lamellae.
Comparison of hardness variations and X-ray results during ageing at 165°C shows that the maximum hardness corresponds to maximum development of θ″-phase, in agreement with previous observations made by other authors in Al-4-4, 5% Cu metastable solid solution.</abstract><cop>London</cop><pub>Taylor & Francis Group</pub><doi>10.1080/14786437408207228</doi><tpages>13</tpages></addata></record> |
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| title | Structural changes in the lamellar eutectic Al-Al2Cu during heat treatment |
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