Interpretation of Fe-rich part of Fe–Al phase diagram from magnetic properties of A2-, B2-, and DO3-phases
Iron-rich Fe–Al binary phase diagram in the composition range of 23–26 at% Al shows a complex structure partly due to magnetic properties of the disordered A2-phase, the ordered B2-phase and the ordered DO3-phase. In this study, the disorder-order transformations between the constituent phases have...
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| creator | Mulyawan, Ade Terai, Tomoyuki Fukuda, Takashi |
| description | Iron-rich Fe–Al binary phase diagram in the composition range of 23–26 at% Al shows a complex structure partly due to magnetic properties of the disordered A2-phase, the ordered B2-phase and the ordered DO3-phase. In this study, the disorder-order transformations between the constituent phases have been investigated through magnetization measurements of Fe-xAl alloys (x = 22.0, 24.0, 24.3, 24.7, 26.5 at%). It is found that spontaneous magnetization of the B2-phase is larger than that of the DO3-phase and smaller than that of the A2-phase. The former relation disagree with previous reports but was further confirmed as the decrease of the B2-DO3 transformation temperature under magnetic field (−1.58 K/T). It is also found that the Curie temperature of the B2-phase (836 K for Fe-24.7 at%Al alloy) coincides with that of the A2-phase; furthermore, these temperatures agree with the phase boundary between B2-region and (A2+B2)-region.
[Display omitted]
•Temperature dependence of spontaneous magnetization was evaluated for the A2-, B2- and DO3-phases of Fe24.7at%Al alloy, and found that the value decreases in this order at any temperature.•Magnetic field dependence of B2-DO3 transformation temperature was evaluated for several Fe-Al alloys, and confirmed that it decreases as magnetic field increases.•Critical behavior for the magnetic transition was analyzed for several Fe-Al alloys and revealed that Curie temperature of the B2-phase almost coincides with that of the A2-phase. |
| doi_str_mv | 10.1016/j.jallcom.2020.155140 |
| format | Article |
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[Display omitted]
•Temperature dependence of spontaneous magnetization was evaluated for the A2-, B2- and DO3-phases of Fe24.7at%Al alloy, and found that the value decreases in this order at any temperature.•Magnetic field dependence of B2-DO3 transformation temperature was evaluated for several Fe-Al alloys, and confirmed that it decreases as magnetic field increases.•Critical behavior for the magnetic transition was analyzed for several Fe-Al alloys and revealed that Curie temperature of the B2-phase almost coincides with that of the A2-phase.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2020.155140</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Aluminum base alloys ; Binary systems ; Critical behavior analysis ; Curie temperature ; Disorder-order transformations ; Iron constituents ; Iron-aluminum alloys ; Magnetic properties ; Magnetism ; Magnetization ; Order disorder ; Phase diagrams ; Spontaneous magnetization ; Transformation temperature</subject><ispartof>Journal of alloys and compounds, 2020-09, Vol.834, p.155140, Article 155140</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Sep 5, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-e893cc87d9ff76b35f432bc521056ef17915a0ff2a1568d6eb60933f2f994a083</citedby><cites>FETCH-LOGICAL-c403t-e893cc87d9ff76b35f432bc521056ef17915a0ff2a1568d6eb60933f2f994a083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925838820315036$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Mulyawan, Ade</creatorcontrib><creatorcontrib>Terai, Tomoyuki</creatorcontrib><creatorcontrib>Fukuda, Takashi</creatorcontrib><title>Interpretation of Fe-rich part of Fe–Al phase diagram from magnetic properties of A2-, B2-, and DO3-phases</title><title>Journal of alloys and compounds</title><description>Iron-rich Fe–Al binary phase diagram in the composition range of 23–26 at% Al shows a complex structure partly due to magnetic properties of the disordered A2-phase, the ordered B2-phase and the ordered DO3-phase. In this study, the disorder-order transformations between the constituent phases have been investigated through magnetization measurements of Fe-xAl alloys (x = 22.0, 24.0, 24.3, 24.7, 26.5 at%). It is found that spontaneous magnetization of the B2-phase is larger than that of the DO3-phase and smaller than that of the A2-phase. The former relation disagree with previous reports but was further confirmed as the decrease of the B2-DO3 transformation temperature under magnetic field (−1.58 K/T). It is also found that the Curie temperature of the B2-phase (836 K for Fe-24.7 at%Al alloy) coincides with that of the A2-phase; furthermore, these temperatures agree with the phase boundary between B2-region and (A2+B2)-region.
[Display omitted]
•Temperature dependence of spontaneous magnetization was evaluated for the A2-, B2- and DO3-phases of Fe24.7at%Al alloy, and found that the value decreases in this order at any temperature.•Magnetic field dependence of B2-DO3 transformation temperature was evaluated for several Fe-Al alloys, and confirmed that it decreases as magnetic field increases.•Critical behavior for the magnetic transition was analyzed for several Fe-Al alloys and revealed that Curie temperature of the B2-phase almost coincides with that of the A2-phase.</description><subject>Aluminum base alloys</subject><subject>Binary systems</subject><subject>Critical behavior analysis</subject><subject>Curie temperature</subject><subject>Disorder-order transformations</subject><subject>Iron constituents</subject><subject>Iron-aluminum alloys</subject><subject>Magnetic properties</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Order disorder</subject><subject>Phase diagrams</subject><subject>Spontaneous magnetization</subject><subject>Transformation temperature</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkMlOwzAQhi0EEmV5BCRLXEnxEifxCZWlUKlSL3C2XGfcOsqG7SJx4x14Q56ElPTOZUYz-r9ZfoSuKJlSQrPbalrpujZdM2WEDT0haEqO0IQWOU_SLJPHaEIkE0nBi-IUnYVQEUKo5HSC6kUbwfceoo6ua3Fn8RwS78wW99rHsf75-p7VuN_qALh0euN1g63vGtzoTQvRGdz7rgcfHYQ9MWPJDb7fB92W-HHFkz82XKATq-sAl4d8jt7mT68PL8ly9bx4mC0TkxIeEygkN6bIS2ltnq25sClnayMYJSIDS3NJhSbWMk1FVpQZrDMiObfMSplqUvBzdD3OHc5630GIqup2vh1WKpZyIVJKcjqoxKgyvgvBg1W9d432n4oStTdWVepgrNobq0ZjB-5u5GB44cOBV8E4aA2UzoOJquzcPxN-AXxOgn4</recordid><startdate>20200905</startdate><enddate>20200905</enddate><creator>Mulyawan, Ade</creator><creator>Terai, Tomoyuki</creator><creator>Fukuda, Takashi</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20200905</creationdate><title>Interpretation of Fe-rich part of Fe–Al phase diagram from magnetic properties of A2-, B2-, and DO3-phases</title><author>Mulyawan, Ade ; Terai, Tomoyuki ; Fukuda, Takashi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-e893cc87d9ff76b35f432bc521056ef17915a0ff2a1568d6eb60933f2f994a083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Aluminum base alloys</topic><topic>Binary systems</topic><topic>Critical behavior analysis</topic><topic>Curie temperature</topic><topic>Disorder-order transformations</topic><topic>Iron constituents</topic><topic>Iron-aluminum alloys</topic><topic>Magnetic properties</topic><topic>Magnetism</topic><topic>Magnetization</topic><topic>Order disorder</topic><topic>Phase diagrams</topic><topic>Spontaneous magnetization</topic><topic>Transformation temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mulyawan, Ade</creatorcontrib><creatorcontrib>Terai, Tomoyuki</creatorcontrib><creatorcontrib>Fukuda, Takashi</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mulyawan, Ade</au><au>Terai, Tomoyuki</au><au>Fukuda, Takashi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interpretation of Fe-rich part of Fe–Al phase diagram from magnetic properties of A2-, B2-, and DO3-phases</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2020-09-05</date><risdate>2020</risdate><volume>834</volume><spage>155140</spage><pages>155140-</pages><artnum>155140</artnum><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>Iron-rich Fe–Al binary phase diagram in the composition range of 23–26 at% Al shows a complex structure partly due to magnetic properties of the disordered A2-phase, the ordered B2-phase and the ordered DO3-phase. In this study, the disorder-order transformations between the constituent phases have been investigated through magnetization measurements of Fe-xAl alloys (x = 22.0, 24.0, 24.3, 24.7, 26.5 at%). It is found that spontaneous magnetization of the B2-phase is larger than that of the DO3-phase and smaller than that of the A2-phase. The former relation disagree with previous reports but was further confirmed as the decrease of the B2-DO3 transformation temperature under magnetic field (−1.58 K/T). It is also found that the Curie temperature of the B2-phase (836 K for Fe-24.7 at%Al alloy) coincides with that of the A2-phase; furthermore, these temperatures agree with the phase boundary between B2-region and (A2+B2)-region.
[Display omitted]
•Temperature dependence of spontaneous magnetization was evaluated for the A2-, B2- and DO3-phases of Fe24.7at%Al alloy, and found that the value decreases in this order at any temperature.•Magnetic field dependence of B2-DO3 transformation temperature was evaluated for several Fe-Al alloys, and confirmed that it decreases as magnetic field increases.•Critical behavior for the magnetic transition was analyzed for several Fe-Al alloys and revealed that Curie temperature of the B2-phase almost coincides with that of the A2-phase.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2020.155140</doi></addata></record> |
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| subjects | Aluminum base alloys Binary systems Critical behavior analysis Curie temperature Disorder-order transformations Iron constituents Iron-aluminum alloys Magnetic properties Magnetism Magnetization Order disorder Phase diagrams Spontaneous magnetization Transformation temperature |
| title | Interpretation of Fe-rich part of Fe–Al phase diagram from magnetic properties of A2-, B2-, and DO3-phases |
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