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Phase transformation and microstructures in Ti–Al–Nb–Ta system
A variety of heat treatment has been carried out to explore the transformation and microstructure in a Ti–22Al–20Nb–7Ta. Special emphasis focused on the effect of solution and/or aging in O+B2 (orthorhombic+bcc) phase field. Two forms of the transformation of B2 to O phase were observed. They are gr...
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| Published in: | Materials letters 2002-03, Vol.53 (1), p.57-62 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c368t-70daf1f96ee4593b090ea64245de10ebb0c3b0085a3de213d450f0cd3d56375a3 |
| container_end_page | 62 |
| container_issue | 1 |
| container_start_page | 57 |
| container_title | Materials letters |
| container_volume | 53 |
| creator | Peng, Jihua Li, Shiqiong Mao, Yong Sun, Xunfang |
| description | A variety of heat treatment has been carried out to explore the transformation and microstructure in a Ti–22Al–20Nb–7Ta. Special emphasis focused on the effect of solution and/or aging in O+B2 (orthorhombic+bcc) phase field. Two forms of the transformation of B2 to O phase were observed. They are grain size change that is controlled by grain boundary diffusion and Widmanstätten precipitation of O phase from the B2 matrix. It has been found that Ta addition in Ti
2AlNb-based alloy could increase the Widmanstätten transformation starting temperature
W
s, which determines the transformation mode of B2 to O phase. During recrystallization of O grain, it evolves into lath microstructure. The primary α
2 phase is relatively stable when Ti–22Al–20Nb–7Ta was heat treated in O+B2 phase field, while the transformation of α
2 to O phase occurred in this study. |
| doi_str_mv | 10.1016/S0167-577X(01)00453-0 |
| format | article |
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2AlNb-based alloy could increase the Widmanstätten transformation starting temperature
W
s, which determines the transformation mode of B2 to O phase. During recrystallization of O grain, it evolves into lath microstructure. The primary α
2 phase is relatively stable when Ti–22Al–20Nb–7Ta was heat treated in O+B2 phase field, while the transformation of α
2 to O phase occurred in this study.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/S0167-577X(01)00453-0</identifier><identifier>CODEN: MLETDJ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Intermetallics ; Materials science ; Metals. Metallurgy ; Microstructure ; Phase transformation ; Physics ; Solid solution hardening, precipitation hardening, and dispersion hardening; aging ; Solid solution, precipitation, and dispersion hardening; aging ; Ti 2AlNb-based alloy ; Ti–Al–Nb–Ta system ; Treatment of materials and its effects on microstructure and properties</subject><ispartof>Materials letters, 2002-03, Vol.53 (1), p.57-62</ispartof><rights>2002 Elsevier Science B.V.</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-70daf1f96ee4593b090ea64245de10ebb0c3b0085a3de213d450f0cd3d56375a3</citedby><cites>FETCH-LOGICAL-c368t-70daf1f96ee4593b090ea64245de10ebb0c3b0085a3de213d450f0cd3d56375a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13491748$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Peng, Jihua</creatorcontrib><creatorcontrib>Li, Shiqiong</creatorcontrib><creatorcontrib>Mao, Yong</creatorcontrib><creatorcontrib>Sun, Xunfang</creatorcontrib><title>Phase transformation and microstructures in Ti–Al–Nb–Ta system</title><title>Materials letters</title><description>A variety of heat treatment has been carried out to explore the transformation and microstructure in a Ti–22Al–20Nb–7Ta. Special emphasis focused on the effect of solution and/or aging in O+B2 (orthorhombic+bcc) phase field. Two forms of the transformation of B2 to O phase were observed. They are grain size change that is controlled by grain boundary diffusion and Widmanstätten precipitation of O phase from the B2 matrix. It has been found that Ta addition in Ti
2AlNb-based alloy could increase the Widmanstätten transformation starting temperature
W
s, which determines the transformation mode of B2 to O phase. During recrystallization of O grain, it evolves into lath microstructure. The primary α
2 phase is relatively stable when Ti–22Al–20Nb–7Ta was heat treated in O+B2 phase field, while the transformation of α
2 to O phase occurred in this study.</description><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Intermetallics</subject><subject>Materials science</subject><subject>Metals. Metallurgy</subject><subject>Microstructure</subject><subject>Phase transformation</subject><subject>Physics</subject><subject>Solid solution hardening, precipitation hardening, and dispersion hardening; aging</subject><subject>Solid solution, precipitation, and dispersion hardening; aging</subject><subject>Ti 2AlNb-based alloy</subject><subject>Ti–Al–Nb–Ta system</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqFkM1KxDAQx4MouK4-gtCLoofqZJM27UmW9RMWFVzBW0iTKUb6sSatsDffwTf0Scx-oEcv_4HhNzPMj5BDCmcUaHr-FELEiRAvJ0BPAXjCYtgiA5oJFvNc5Ntk8Ivskj3v3yBQOfABuXx8VR6jzqnGl62rVWfbJlKNiWqrXes71-uud-gj20Qz-_35Na5C3BchZiryC99hvU92SlV5PNjUIXm-vppNbuPpw83dZDyNNUuzLhZgVEnLPEXkSc4KyAFVykc8MUgBiwJ0aEKWKGZwRJnhCZSgDTNJykToDsnxeu_cte89-k7W1musKtVg23s5EilPU54FMFmDyxe8w1LOna2VW0gKculMrpzJpRAJVK6cSQhzR5sDymtVlcGKtv5vmPGcitX-izWH4dsPi056bbHRaKxD3UnT2n8u_QCQIoO8</recordid><startdate>20020301</startdate><enddate>20020301</enddate><creator>Peng, Jihua</creator><creator>Li, Shiqiong</creator><creator>Mao, Yong</creator><creator>Sun, Xunfang</creator><general>Elsevier B.V</general><general>Elsevier</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>20020301</creationdate><title>Phase transformation and microstructures in Ti–Al–Nb–Ta system</title><author>Peng, Jihua ; Li, Shiqiong ; Mao, Yong ; Sun, Xunfang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-70daf1f96ee4593b090ea64245de10ebb0c3b0085a3de213d450f0cd3d56375a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Applied sciences</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Intermetallics</topic><topic>Materials science</topic><topic>Metals. Metallurgy</topic><topic>Microstructure</topic><topic>Phase transformation</topic><topic>Physics</topic><topic>Solid solution hardening, precipitation hardening, and dispersion hardening; aging</topic><topic>Solid solution, precipitation, and dispersion hardening; aging</topic><topic>Ti 2AlNb-based alloy</topic><topic>Ti–Al–Nb–Ta system</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Peng, Jihua</creatorcontrib><creatorcontrib>Li, Shiqiong</creatorcontrib><creatorcontrib>Mao, Yong</creatorcontrib><creatorcontrib>Sun, Xunfang</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>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Peng, Jihua</au><au>Li, Shiqiong</au><au>Mao, Yong</au><au>Sun, Xunfang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phase transformation and microstructures in Ti–Al–Nb–Ta system</atitle><jtitle>Materials letters</jtitle><date>2002-03-01</date><risdate>2002</risdate><volume>53</volume><issue>1</issue><spage>57</spage><epage>62</epage><pages>57-62</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><coden>MLETDJ</coden><abstract>A variety of heat treatment has been carried out to explore the transformation and microstructure in a Ti–22Al–20Nb–7Ta. Special emphasis focused on the effect of solution and/or aging in O+B2 (orthorhombic+bcc) phase field. Two forms of the transformation of B2 to O phase were observed. They are grain size change that is controlled by grain boundary diffusion and Widmanstätten precipitation of O phase from the B2 matrix. It has been found that Ta addition in Ti
2AlNb-based alloy could increase the Widmanstätten transformation starting temperature
W
s, which determines the transformation mode of B2 to O phase. During recrystallization of O grain, it evolves into lath microstructure. The primary α
2 phase is relatively stable when Ti–22Al–20Nb–7Ta was heat treated in O+B2 phase field, while the transformation of α
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| identifier | ISSN: 0167-577X |
| ispartof | Materials letters, 2002-03, Vol.53 (1), p.57-62 |
| issn | 0167-577X 1873-4979 |
| language | eng |
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| source | ScienceDirect Freedom Collection 2022-2024 |
| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology Intermetallics Materials science Metals. Metallurgy Microstructure Phase transformation Physics Solid solution hardening, precipitation hardening, and dispersion hardening aging Solid solution, precipitation, and dispersion hardening aging Ti 2AlNb-based alloy Ti–Al–Nb–Ta system Treatment of materials and its effects on microstructure and properties |
| title | Phase transformation and microstructures in Ti–Al–Nb–Ta system |
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