Interaction of tantalum with reinforcements in γ TiAl
Evidence suggests that tantalum alloying additions can segregate to fiber or reaction zone interfaces in TiAl. The behavior depends on the reinforcing material being studied. Inhomogeneities in tantalum concentration in TiAl owing to segregation are a matter for concern. Other refractory metal addit...
Gespeichert in:
| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 1992-05, Vol.153 (1), p.662-667 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 667 |
|---|---|
| container_issue | 1 |
| container_start_page | 662 |
| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
| container_volume | 153 |
| creator | Newkirk, Joseph Dixon, Darrell |
| description | Evidence suggests that tantalum alloying additions can segregate to fiber or reaction zone interfaces in TiAl. The behavior depends on the reinforcing material being studied. Inhomogeneities in tantalum concentration in TiAl owing to segregation are a matter for concern. Other refractory metal additions may also segregate, since they behave similar to tantalum. Samples of Ti-47Al-2Ta with a few reinforcing fibers were hot isostatically pressed. The fibers used were Al
2O
3-ZrO
2 and Si
3N
4, uncoated and coated with TiC or TiB
2. These samples were heated for times up to 500 h at 982 °C in order to simulate potential use temperatures and times. Backscattered scanning electron microscopy, energy dispersive X-ray analysis and electron microprobe analysis were used for the examination. Results include a sixfold increase in tantalum at the interface between a TiB
2 coating on a Si
3N
4 fiber and the matrix, while an uncoated fiber shows an increasing tantalum content in the fiber and reaction zones. |
| doi_str_mv | 10.1016/0921-5093(92)90267-5 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_16384488</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>0921509392902675</els_id><sourcerecordid>18975</sourcerecordid><originalsourceid>FETCH-LOGICAL-c434t-707f49805dff677f51cf25e5e02a6248716b0fc9ad4ad9937734ea14c403f8c93</originalsourceid><addsrcrecordid>eNp9kM1KAzEUhYMoWKtv4GIWIroYTSb_G6EUfwoFN3UdYuYGI9NMTVLF5_I9fCY7trh0dTffOYf7IXRK8BXBRFxj3ZCaY00vdHOpcSNkzffQiChJa6ap2EejP-QQHeX8ijEmDPMRErNYIFlXQh-r3lfFxmK79bL6COWlShCi75ODJcSSqxCr769qESbdMTrwtstwsrtj9HR3u5g-1PPH-9l0Mq8do6zUEkvPtMK89V5I6TlxvuHAATdWNExJIp6xd9q2zLZaUykpA0uYY5h65TQdo_Nt7yr1b2vIxSxDdtB1NkK_zoYIqhhTagOyLehSn3MCb1YpLG36NASbQZIZDJjBgNGN-ZVk-CZ2tuu32dnOJxtdyH9ZzhRmdGi_2WKw-fU9QDLZBYgO2pDAFdP24f-dH3PVeis</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>16384488</pqid></control><display><type>article</type><title>Interaction of tantalum with reinforcements in γ TiAl</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Newkirk, Joseph ; Dixon, Darrell</creator><creatorcontrib>Newkirk, Joseph ; Dixon, Darrell</creatorcontrib><description>Evidence suggests that tantalum alloying additions can segregate to fiber or reaction zone interfaces in TiAl. The behavior depends on the reinforcing material being studied. Inhomogeneities in tantalum concentration in TiAl owing to segregation are a matter for concern. Other refractory metal additions may also segregate, since they behave similar to tantalum. Samples of Ti-47Al-2Ta with a few reinforcing fibers were hot isostatically pressed. The fibers used were Al
2O
3-ZrO
2 and Si
3N
4, uncoated and coated with TiC or TiB
2. These samples were heated for times up to 500 h at 982 °C in order to simulate potential use temperatures and times. Backscattered scanning electron microscopy, energy dispersive X-ray analysis and electron microprobe analysis were used for the examination. Results include a sixfold increase in tantalum at the interface between a TiB
2 coating on a Si
3N
4 fiber and the matrix, while an uncoated fiber shows an increasing tantalum content in the fiber and reaction zones.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/0921-5093(92)90267-5</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Exact sciences and technology ; Fibre reinforced metals ; Metals. Metallurgy ; Powder metallurgy. Composite materials ; Production techniques</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 1992-05, Vol.153 (1), p.662-667</ispartof><rights>1992</rights><rights>1992 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-707f49805dff677f51cf25e5e02a6248716b0fc9ad4ad9937734ea14c403f8c93</citedby><cites>FETCH-LOGICAL-c434t-707f49805dff677f51cf25e5e02a6248716b0fc9ad4ad9937734ea14c403f8c93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0921509392902675$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3537,23909,23910,25118,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=5480438$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Newkirk, Joseph</creatorcontrib><creatorcontrib>Dixon, Darrell</creatorcontrib><title>Interaction of tantalum with reinforcements in γ TiAl</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>Evidence suggests that tantalum alloying additions can segregate to fiber or reaction zone interfaces in TiAl. The behavior depends on the reinforcing material being studied. Inhomogeneities in tantalum concentration in TiAl owing to segregation are a matter for concern. Other refractory metal additions may also segregate, since they behave similar to tantalum. Samples of Ti-47Al-2Ta with a few reinforcing fibers were hot isostatically pressed. The fibers used were Al
2O
3-ZrO
2 and Si
3N
4, uncoated and coated with TiC or TiB
2. These samples were heated for times up to 500 h at 982 °C in order to simulate potential use temperatures and times. Backscattered scanning electron microscopy, energy dispersive X-ray analysis and electron microprobe analysis were used for the examination. Results include a sixfold increase in tantalum at the interface between a TiB
2 coating on a Si
3N
4 fiber and the matrix, while an uncoated fiber shows an increasing tantalum content in the fiber and reaction zones.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Fibre reinforced metals</subject><subject>Metals. Metallurgy</subject><subject>Powder metallurgy. Composite materials</subject><subject>Production techniques</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KAzEUhYMoWKtv4GIWIroYTSb_G6EUfwoFN3UdYuYGI9NMTVLF5_I9fCY7trh0dTffOYf7IXRK8BXBRFxj3ZCaY00vdHOpcSNkzffQiChJa6ap2EejP-QQHeX8ijEmDPMRErNYIFlXQh-r3lfFxmK79bL6COWlShCi75ODJcSSqxCr769qESbdMTrwtstwsrtj9HR3u5g-1PPH-9l0Mq8do6zUEkvPtMK89V5I6TlxvuHAATdWNExJIp6xd9q2zLZaUykpA0uYY5h65TQdo_Nt7yr1b2vIxSxDdtB1NkK_zoYIqhhTagOyLehSn3MCb1YpLG36NASbQZIZDJjBgNGN-ZVk-CZ2tuu32dnOJxtdyH9ZzhRmdGi_2WKw-fU9QDLZBYgO2pDAFdP24f-dH3PVeis</recordid><startdate>19920530</startdate><enddate>19920530</enddate><creator>Newkirk, Joseph</creator><creator>Dixon, Darrell</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19920530</creationdate><title>Interaction of tantalum with reinforcements in γ TiAl</title><author>Newkirk, Joseph ; Dixon, Darrell</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c434t-707f49805dff677f51cf25e5e02a6248716b0fc9ad4ad9937734ea14c403f8c93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Fibre reinforced metals</topic><topic>Metals. Metallurgy</topic><topic>Powder metallurgy. Composite materials</topic><topic>Production techniques</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Newkirk, Joseph</creatorcontrib><creatorcontrib>Dixon, Darrell</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Newkirk, Joseph</au><au>Dixon, Darrell</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interaction of tantalum with reinforcements in γ TiAl</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>1992-05-30</date><risdate>1992</risdate><volume>153</volume><issue>1</issue><spage>662</spage><epage>667</epage><pages>662-667</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>Evidence suggests that tantalum alloying additions can segregate to fiber or reaction zone interfaces in TiAl. The behavior depends on the reinforcing material being studied. Inhomogeneities in tantalum concentration in TiAl owing to segregation are a matter for concern. Other refractory metal additions may also segregate, since they behave similar to tantalum. Samples of Ti-47Al-2Ta with a few reinforcing fibers were hot isostatically pressed. The fibers used were Al
2O
3-ZrO
2 and Si
3N
4, uncoated and coated with TiC or TiB
2. These samples were heated for times up to 500 h at 982 °C in order to simulate potential use temperatures and times. Backscattered scanning electron microscopy, energy dispersive X-ray analysis and electron microprobe analysis were used for the examination. Results include a sixfold increase in tantalum at the interface between a TiB
2 coating on a Si
3N
4 fiber and the matrix, while an uncoated fiber shows an increasing tantalum content in the fiber and reaction zones.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/0921-5093(92)90267-5</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0921-5093 |
| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 1992-05, Vol.153 (1), p.662-667 |
| issn | 0921-5093 1873-4936 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_16384488 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Exact sciences and technology Fibre reinforced metals Metals. Metallurgy Powder metallurgy. Composite materials Production techniques |
| title | Interaction of tantalum with reinforcements in γ TiAl |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-09T12%3A44%3A03IST&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=Interaction%20of%20tantalum%20with%20reinforcements%20in%20%CE%B3%20TiAl&rft.jtitle=Materials%20science%20&%20engineering.%20A,%20Structural%20materials%20:%20properties,%20microstructure%20and%20processing&rft.au=Newkirk,%20Joseph&rft.date=1992-05-30&rft.volume=153&rft.issue=1&rft.spage=662&rft.epage=667&rft.pages=662-667&rft.issn=0921-5093&rft.eissn=1873-4936&rft_id=info:doi/10.1016/0921-5093(92)90267-5&rft_dat=%3Cproquest_cross%3E18975%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=16384488&rft_id=info:pmid/&rft_els_id=0921509392902675&rfr_iscdi=true |