Discontinuous precipitation in Al-50 WT% Zn alloys
Thermal methods are applicable to the discontinuous reaction observed in Al--Zn solid solutions ( > 20%Zn) supersaturated with respect to Zn, either during continuous cooling or during isothermal aging at lower temperatures. Isothermal and DSC cooling rate experiments confirm that the discontinuo...
Gespeichert in:
| Veröffentlicht in: | Scripta metallurgica 1989-12, Vol.23 (12), p.2001-2005 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 2005 |
|---|---|
| container_issue | 12 |
| container_start_page | 2001 |
| container_title | Scripta metallurgica |
| container_volume | 23 |
| creator | Lacom, W. Zahra, C.Y. Zahra, A.M. |
| description | Thermal methods are applicable to the discontinuous reaction observed in Al--Zn solid solutions ( > 20%Zn) supersaturated with respect to Zn, either during continuous cooling or during isothermal aging at lower temperatures. Isothermal and DSC cooling rate experiments confirm that the discontinuous precipitation of these solutions is a nucleation and growth process. An Al--50Zn--Si--Fe--Cu alloy was homogenized and solutionized. Isothermal measurements between 30-60 deg C within a differential microcalimeter were made. Continuous cooling experiments at rates between 1/4 and 80 deg C/min were carried out by DSC thermal analysis. In order to correlate microstructural changes with specific stages of the isothermal heat flow curves, SEM-microcharacterization was performed with a microcalimeter after 20 h at 30 deg C. Graphs, Photomicrographs. 10 ref.--A.R. |
| doi_str_mv | 10.1016/0036-9748(89)90221-4 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_25192596</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>0036974889902214</els_id><sourcerecordid>25192596</sourcerecordid><originalsourceid>FETCH-LOGICAL-c279t-8a065f57398e95b3cbce310d8470d14afc5f907affefd8e4b702f0683aceb893</originalsourceid><addsrcrecordid>eNp9kE9LAzEQxXNQsFa_gYc9qOhhdZLNZpOLUOpfKHgpCF5CNjuByDa7Jluh396tLT16Ghh-7828R8gFhTsKVNwDFCJXFZc3Ut0qYIzm_IhMDusTcprSFwArpFATwh59sl0YfFh365T1Ea3v_WAG34XMh2zW5iVkH8ur7DNkpm27TTojx860Cc_3c0qWz0_L-Wu-eH95m88WuWWVGnJpQJSurAolUZV1YWuLBYVG8goayo2zpVNQGefQNRJ5XQFzIGRhLNZSFVNyvbPtY_e9xjTo1fgqtq0JOL6qWUkVK5UYQb4DbexSiuh0H_3KxI2moLed6G14vQ2vpdJ_nWg-yi73_iZZ07pogvXpoBVCUaHYiD3sMByj_niMOlmPwWLjx64G3XT-_zu_yXB2IA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>25192596</pqid></control><display><type>article</type><title>Discontinuous precipitation in Al-50 WT% Zn alloys</title><source>Alma/SFX Local Collection</source><creator>Lacom, W. ; Zahra, C.Y. ; Zahra, A.M.</creator><creatorcontrib>Lacom, W. ; Zahra, C.Y. ; Zahra, A.M.</creatorcontrib><description>Thermal methods are applicable to the discontinuous reaction observed in Al--Zn solid solutions ( > 20%Zn) supersaturated with respect to Zn, either during continuous cooling or during isothermal aging at lower temperatures. Isothermal and DSC cooling rate experiments confirm that the discontinuous precipitation of these solutions is a nucleation and growth process. An Al--50Zn--Si--Fe--Cu alloy was homogenized and solutionized. Isothermal measurements between 30-60 deg C within a differential microcalimeter were made. Continuous cooling experiments at rates between 1/4 and 80 deg C/min were carried out by DSC thermal analysis. In order to correlate microstructural changes with specific stages of the isothermal heat flow curves, SEM-microcharacterization was performed with a microcalimeter after 20 h at 30 deg C. Graphs, Photomicrographs. 10 ref.--A.R.</description><identifier>ISSN: 0036-9748</identifier><identifier>DOI: 10.1016/0036-9748(89)90221-4</identifier><identifier>CODEN: SCRMBU</identifier><language>eng</language><publisher>Elmsford, NY: Elsevier B.V</publisher><subject>Applied sciences ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Materials science ; Metals, semimetals and alloys ; Metals. Metallurgy ; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations ; Physics ; Specific materials ; Treatment of materials and its effects on microstructure and properties</subject><ispartof>Scripta metallurgica, 1989-12, Vol.23 (12), p.2001-2005</ispartof><rights>1989</rights><rights>1990 INIST-CNRS</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c279t-8a065f57398e95b3cbce310d8470d14afc5f907affefd8e4b702f0683aceb893</citedby><cites>FETCH-LOGICAL-c279t-8a065f57398e95b3cbce310d8470d14afc5f907affefd8e4b702f0683aceb893</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6691692$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lacom, W.</creatorcontrib><creatorcontrib>Zahra, C.Y.</creatorcontrib><creatorcontrib>Zahra, A.M.</creatorcontrib><title>Discontinuous precipitation in Al-50 WT% Zn alloys</title><title>Scripta metallurgica</title><description>Thermal methods are applicable to the discontinuous reaction observed in Al--Zn solid solutions ( > 20%Zn) supersaturated with respect to Zn, either during continuous cooling or during isothermal aging at lower temperatures. Isothermal and DSC cooling rate experiments confirm that the discontinuous precipitation of these solutions is a nucleation and growth process. An Al--50Zn--Si--Fe--Cu alloy was homogenized and solutionized. Isothermal measurements between 30-60 deg C within a differential microcalimeter were made. Continuous cooling experiments at rates between 1/4 and 80 deg C/min were carried out by DSC thermal analysis. In order to correlate microstructural changes with specific stages of the isothermal heat flow curves, SEM-microcharacterization was performed with a microcalimeter after 20 h at 30 deg C. Graphs, Photomicrographs. 10 ref.--A.R.</description><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Materials science</subject><subject>Metals, semimetals and alloys</subject><subject>Metals. Metallurgy</subject><subject>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</subject><subject>Physics</subject><subject>Specific materials</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><issn>0036-9748</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LAzEQxXNQsFa_gYc9qOhhdZLNZpOLUOpfKHgpCF5CNjuByDa7Jluh396tLT16Ghh-7828R8gFhTsKVNwDFCJXFZc3Ut0qYIzm_IhMDusTcprSFwArpFATwh59sl0YfFh365T1Ea3v_WAG34XMh2zW5iVkH8ur7DNkpm27TTojx860Cc_3c0qWz0_L-Wu-eH95m88WuWWVGnJpQJSurAolUZV1YWuLBYVG8goayo2zpVNQGefQNRJ5XQFzIGRhLNZSFVNyvbPtY_e9xjTo1fgqtq0JOL6qWUkVK5UYQb4DbexSiuh0H_3KxI2moLed6G14vQ2vpdJ_nWg-yi73_iZZ07pogvXpoBVCUaHYiD3sMByj_niMOlmPwWLjx64G3XT-_zu_yXB2IA</recordid><startdate>19891201</startdate><enddate>19891201</enddate><creator>Lacom, W.</creator><creator>Zahra, C.Y.</creator><creator>Zahra, A.M.</creator><general>Elsevier B.V</general><general>Pergamon Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19891201</creationdate><title>Discontinuous precipitation in Al-50 WT% Zn alloys</title><author>Lacom, W. ; Zahra, C.Y. ; Zahra, A.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c279t-8a065f57398e95b3cbce310d8470d14afc5f907affefd8e4b702f0683aceb893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Applied sciences</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Materials science</topic><topic>Metals, semimetals and alloys</topic><topic>Metals. Metallurgy</topic><topic>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</topic><topic>Physics</topic><topic>Specific materials</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><toplevel>online_resources</toplevel><creatorcontrib>Lacom, W.</creatorcontrib><creatorcontrib>Zahra, C.Y.</creatorcontrib><creatorcontrib>Zahra, A.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Scripta metallurgica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lacom, W.</au><au>Zahra, C.Y.</au><au>Zahra, A.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Discontinuous precipitation in Al-50 WT% Zn alloys</atitle><jtitle>Scripta metallurgica</jtitle><date>1989-12-01</date><risdate>1989</risdate><volume>23</volume><issue>12</issue><spage>2001</spage><epage>2005</epage><pages>2001-2005</pages><issn>0036-9748</issn><coden>SCRMBU</coden><abstract>Thermal methods are applicable to the discontinuous reaction observed in Al--Zn solid solutions ( > 20%Zn) supersaturated with respect to Zn, either during continuous cooling or during isothermal aging at lower temperatures. Isothermal and DSC cooling rate experiments confirm that the discontinuous precipitation of these solutions is a nucleation and growth process. An Al--50Zn--Si--Fe--Cu alloy was homogenized and solutionized. Isothermal measurements between 30-60 deg C within a differential microcalimeter were made. Continuous cooling experiments at rates between 1/4 and 80 deg C/min were carried out by DSC thermal analysis. In order to correlate microstructural changes with specific stages of the isothermal heat flow curves, SEM-microcharacterization was performed with a microcalimeter after 20 h at 30 deg C. Graphs, Photomicrographs. 10 ref.--A.R.</abstract><cop>Elmsford, NY</cop><pub>Elsevier B.V</pub><doi>10.1016/0036-9748(89)90221-4</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0036-9748 |
| ispartof | Scripta metallurgica, 1989-12, Vol.23 (12), p.2001-2005 |
| issn | 0036-9748 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_25192596 |
| source | Alma/SFX Local Collection |
| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Metals, semimetals and alloys Metals. Metallurgy Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Specific materials Treatment of materials and its effects on microstructure and properties |
| title | Discontinuous precipitation in Al-50 WT% Zn alloys |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-26T22%3A56%3A36IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Discontinuous%20precipitation%20in%20Al-50%20WT%25%20Zn%20alloys&rft.jtitle=Scripta%20metallurgica&rft.au=Lacom,%20W.&rft.date=1989-12-01&rft.volume=23&rft.issue=12&rft.spage=2001&rft.epage=2005&rft.pages=2001-2005&rft.issn=0036-9748&rft.coden=SCRMBU&rft_id=info:doi/10.1016/0036-9748(89)90221-4&rft_dat=%3Cproquest_cross%3E25192596%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=25192596&rft_id=info:pmid/&rft_els_id=0036974889902214&rfr_iscdi=true |