First- and second-order phase transitions in Fe-(17-19)at.%Ga alloys
[Display omitted] •Time-Temperature-Transformation diagrams are built for the Fe-17.5 Ga and 19.5 Ga alloys.•In situ neutron diffraction with different cooling rates is used to control phase transitions.•Long-term annealing demonstrates inadequacy of existing phase diagrams. The structure of the Fe-...
Gespeichert in:
| Veröffentlicht in: | Materials letters 2020-11, Vol.279, p.128508, Article 128508 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | 128508 |
| container_title | Materials letters |
| container_volume | 279 |
| creator | Mohamed, A.K. Cheverikin, V.V. Medvedeva, S.V. Bobrikov, I.A. Balagurov, A.M. Golovin, I.S. |
| description | [Display omitted]
•Time-Temperature-Transformation diagrams are built for the Fe-17.5 Ga and 19.5 Ga alloys.•In situ neutron diffraction with different cooling rates is used to control phase transitions.•Long-term annealing demonstrates inadequacy of existing phase diagrams.
The structure of the Fe-(17.5–19.5)at.%Ga alloys in as-cast and nearly equilibrium states is studied using XRD, ND, and EBSD. In disagreement with the existing phase diagrams, the long-term isothermally annealed at 450–500 °C Fe-17.5%Ga alloy has a two-phase structure with two co-existing ferromagnetic phases: bcc-originated A2(D03) as a matrix and a fcc-originated A1(L12) needle-shaped precipitates. The phase transitions during cooling of 17.5 and 19.5%Ga alloys from the A2 range of the phase diagram with different cooling rates were used to plot, at least partly, Time-Temperature-Transformation (TTT) diagrams. The critical cooling rates for starting first- and second-order transitions are determined for the Fe-19.5%Ga alloy. The effect of long-term annealing on magnetostriction is reported. |
| doi_str_mv | 10.1016/j.matlet.2020.128508 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2460788075</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0167577X20312143</els_id><sourcerecordid>2460788075</sourcerecordid><originalsourceid>FETCH-LOGICAL-c334t-1a55cd2e34b1356aca279dfd0b5220101c4e4973490df7637096d8ec3b808ec23</originalsourceid><addsrcrecordid>eNp9UE1LxDAUDKLguvoPPBRE0ENqvtq0F0FWdxUWvCh4C9nkFVO6zZpEYf-9WerZ08BjZt7MIHRJSUkJre_6cqvTAKlkhOUTayrSHKEZbSTHopXtMZplmsSVlB-n6CzGnhAiWiJm6HHpQky40KMtIhg_WuyDhVDsPnWEIgU9RpecH2PhxmIJ-IZKTNtbncrrlS70MPh9PEcnnR4iXPzhHL0vn94Wz3j9unpZPKyx4VwkTHVVGcuAiw3lVa2NZrK1nSWbijGSmxgBOS7PyWwnay5JW9sGDN80JAPjc3Q1-e6C__qGmFTvv8OYXyomaiKbhsgqs8TEMsHHGKBTu-C2OuwVJeqwl-rVtJc67KWmvbLsfpJBbvDjIKhoHIwGrAtgkrLe_W_wCwxfcn4</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2460788075</pqid></control><display><type>article</type><title>First- and second-order phase transitions in Fe-(17-19)at.%Ga alloys</title><source>Elsevier ScienceDirect Journals</source><creator>Mohamed, A.K. ; Cheverikin, V.V. ; Medvedeva, S.V. ; Bobrikov, I.A. ; Balagurov, A.M. ; Golovin, I.S.</creator><creatorcontrib>Mohamed, A.K. ; Cheverikin, V.V. ; Medvedeva, S.V. ; Bobrikov, I.A. ; Balagurov, A.M. ; Golovin, I.S.</creatorcontrib><description>[Display omitted]
•Time-Temperature-Transformation diagrams are built for the Fe-17.5 Ga and 19.5 Ga alloys.•In situ neutron diffraction with different cooling rates is used to control phase transitions.•Long-term annealing demonstrates inadequacy of existing phase diagrams.
The structure of the Fe-(17.5–19.5)at.%Ga alloys in as-cast and nearly equilibrium states is studied using XRD, ND, and EBSD. In disagreement with the existing phase diagrams, the long-term isothermally annealed at 450–500 °C Fe-17.5%Ga alloy has a two-phase structure with two co-existing ferromagnetic phases: bcc-originated A2(D03) as a matrix and a fcc-originated A1(L12) needle-shaped precipitates. The phase transitions during cooling of 17.5 and 19.5%Ga alloys from the A2 range of the phase diagram with different cooling rates were used to plot, at least partly, Time-Temperature-Transformation (TTT) diagrams. The critical cooling rates for starting first- and second-order transitions are determined for the Fe-19.5%Ga alloy. The effect of long-term annealing on magnetostriction is reported.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2020.128508</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Alloys ; Annealing ; Cooling ; Cooling rate ; Cooling rates ; Diffusion ; Fe-Ga ; Ferromagnetic phases ; Ferromagnetism ; Gallium base alloys ; Grain boundaries ; Magnetostriction ; Materials science ; Phase diagrams ; Phase transformations ; Phase transitions ; Precipitates ; Solid phases ; TTT diagram</subject><ispartof>Materials letters, 2020-11, Vol.279, p.128508, Article 128508</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Nov 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-1a55cd2e34b1356aca279dfd0b5220101c4e4973490df7637096d8ec3b808ec23</citedby><cites>FETCH-LOGICAL-c334t-1a55cd2e34b1356aca279dfd0b5220101c4e4973490df7637096d8ec3b808ec23</cites><orcidid>0000-0001-5364-1440</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X20312143$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Mohamed, A.K.</creatorcontrib><creatorcontrib>Cheverikin, V.V.</creatorcontrib><creatorcontrib>Medvedeva, S.V.</creatorcontrib><creatorcontrib>Bobrikov, I.A.</creatorcontrib><creatorcontrib>Balagurov, A.M.</creatorcontrib><creatorcontrib>Golovin, I.S.</creatorcontrib><title>First- and second-order phase transitions in Fe-(17-19)at.%Ga alloys</title><title>Materials letters</title><description>[Display omitted]
•Time-Temperature-Transformation diagrams are built for the Fe-17.5 Ga and 19.5 Ga alloys.•In situ neutron diffraction with different cooling rates is used to control phase transitions.•Long-term annealing demonstrates inadequacy of existing phase diagrams.
The structure of the Fe-(17.5–19.5)at.%Ga alloys in as-cast and nearly equilibrium states is studied using XRD, ND, and EBSD. In disagreement with the existing phase diagrams, the long-term isothermally annealed at 450–500 °C Fe-17.5%Ga alloy has a two-phase structure with two co-existing ferromagnetic phases: bcc-originated A2(D03) as a matrix and a fcc-originated A1(L12) needle-shaped precipitates. The phase transitions during cooling of 17.5 and 19.5%Ga alloys from the A2 range of the phase diagram with different cooling rates were used to plot, at least partly, Time-Temperature-Transformation (TTT) diagrams. The critical cooling rates for starting first- and second-order transitions are determined for the Fe-19.5%Ga alloy. The effect of long-term annealing on magnetostriction is reported.</description><subject>Alloys</subject><subject>Annealing</subject><subject>Cooling</subject><subject>Cooling rate</subject><subject>Cooling rates</subject><subject>Diffusion</subject><subject>Fe-Ga</subject><subject>Ferromagnetic phases</subject><subject>Ferromagnetism</subject><subject>Gallium base alloys</subject><subject>Grain boundaries</subject><subject>Magnetostriction</subject><subject>Materials science</subject><subject>Phase diagrams</subject><subject>Phase transformations</subject><subject>Phase transitions</subject><subject>Precipitates</subject><subject>Solid phases</subject><subject>TTT diagram</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9UE1LxDAUDKLguvoPPBRE0ENqvtq0F0FWdxUWvCh4C9nkFVO6zZpEYf-9WerZ08BjZt7MIHRJSUkJre_6cqvTAKlkhOUTayrSHKEZbSTHopXtMZplmsSVlB-n6CzGnhAiWiJm6HHpQky40KMtIhg_WuyDhVDsPnWEIgU9RpecH2PhxmIJ-IZKTNtbncrrlS70MPh9PEcnnR4iXPzhHL0vn94Wz3j9unpZPKyx4VwkTHVVGcuAiw3lVa2NZrK1nSWbijGSmxgBOS7PyWwnay5JW9sGDN80JAPjc3Q1-e6C__qGmFTvv8OYXyomaiKbhsgqs8TEMsHHGKBTu-C2OuwVJeqwl-rVtJc67KWmvbLsfpJBbvDjIKhoHIwGrAtgkrLe_W_wCwxfcn4</recordid><startdate>20201115</startdate><enddate>20201115</enddate><creator>Mohamed, A.K.</creator><creator>Cheverikin, V.V.</creator><creator>Medvedeva, S.V.</creator><creator>Bobrikov, I.A.</creator><creator>Balagurov, A.M.</creator><creator>Golovin, I.S.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-5364-1440</orcidid></search><sort><creationdate>20201115</creationdate><title>First- and second-order phase transitions in Fe-(17-19)at.%Ga alloys</title><author>Mohamed, A.K. ; Cheverikin, V.V. ; Medvedeva, S.V. ; Bobrikov, I.A. ; Balagurov, A.M. ; Golovin, I.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-1a55cd2e34b1356aca279dfd0b5220101c4e4973490df7637096d8ec3b808ec23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Alloys</topic><topic>Annealing</topic><topic>Cooling</topic><topic>Cooling rate</topic><topic>Cooling rates</topic><topic>Diffusion</topic><topic>Fe-Ga</topic><topic>Ferromagnetic phases</topic><topic>Ferromagnetism</topic><topic>Gallium base alloys</topic><topic>Grain boundaries</topic><topic>Magnetostriction</topic><topic>Materials science</topic><topic>Phase diagrams</topic><topic>Phase transformations</topic><topic>Phase transitions</topic><topic>Precipitates</topic><topic>Solid phases</topic><topic>TTT diagram</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mohamed, A.K.</creatorcontrib><creatorcontrib>Cheverikin, V.V.</creatorcontrib><creatorcontrib>Medvedeva, S.V.</creatorcontrib><creatorcontrib>Bobrikov, I.A.</creatorcontrib><creatorcontrib>Balagurov, A.M.</creatorcontrib><creatorcontrib>Golovin, I.S.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials 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>Mohamed, A.K.</au><au>Cheverikin, V.V.</au><au>Medvedeva, S.V.</au><au>Bobrikov, I.A.</au><au>Balagurov, A.M.</au><au>Golovin, I.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>First- and second-order phase transitions in Fe-(17-19)at.%Ga alloys</atitle><jtitle>Materials letters</jtitle><date>2020-11-15</date><risdate>2020</risdate><volume>279</volume><spage>128508</spage><pages>128508-</pages><artnum>128508</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>[Display omitted]
•Time-Temperature-Transformation diagrams are built for the Fe-17.5 Ga and 19.5 Ga alloys.•In situ neutron diffraction with different cooling rates is used to control phase transitions.•Long-term annealing demonstrates inadequacy of existing phase diagrams.
The structure of the Fe-(17.5–19.5)at.%Ga alloys in as-cast and nearly equilibrium states is studied using XRD, ND, and EBSD. In disagreement with the existing phase diagrams, the long-term isothermally annealed at 450–500 °C Fe-17.5%Ga alloy has a two-phase structure with two co-existing ferromagnetic phases: bcc-originated A2(D03) as a matrix and a fcc-originated A1(L12) needle-shaped precipitates. The phase transitions during cooling of 17.5 and 19.5%Ga alloys from the A2 range of the phase diagram with different cooling rates were used to plot, at least partly, Time-Temperature-Transformation (TTT) diagrams. The critical cooling rates for starting first- and second-order transitions are determined for the Fe-19.5%Ga alloy. The effect of long-term annealing on magnetostriction is reported.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2020.128508</doi><orcidid>https://orcid.org/0000-0001-5364-1440</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0167-577X |
| ispartof | Materials letters, 2020-11, Vol.279, p.128508, Article 128508 |
| issn | 0167-577X 1873-4979 |
| language | eng |
| recordid | cdi_proquest_journals_2460788075 |
| source | Elsevier ScienceDirect Journals |
| subjects | Alloys Annealing Cooling Cooling rate Cooling rates Diffusion Fe-Ga Ferromagnetic phases Ferromagnetism Gallium base alloys Grain boundaries Magnetostriction Materials science Phase diagrams Phase transformations Phase transitions Precipitates Solid phases TTT diagram |
| title | First- and second-order phase transitions in Fe-(17-19)at.%Ga alloys |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-03T00%3A23%3A46IST&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=First-%20and%20second-order%20phase%20transitions%20in%20Fe-(17-19)at.%25Ga%20alloys&rft.jtitle=Materials%20letters&rft.au=Mohamed,%20A.K.&rft.date=2020-11-15&rft.volume=279&rft.spage=128508&rft.pages=128508-&rft.artnum=128508&rft.issn=0167-577X&rft.eissn=1873-4979&rft_id=info:doi/10.1016/j.matlet.2020.128508&rft_dat=%3Cproquest_cross%3E2460788075%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=2460788075&rft_id=info:pmid/&rft_els_id=S0167577X20312143&rfr_iscdi=true |