Evolution of the microstructure, electrical resistivity and microhardness during atomic ordering of cryogenically deformed Cu-47at.%Pd alloy
The kinetics of the A1→B2 phase transition in the cryogenically deformed Cu-47at.%Pd alloy has been compared with that both after room-temperature deformation and after quenching from high temperature. For this aim, the evolution of the microstructure, electrical properties and microhardness of the...
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| Veröffentlicht in: | Journal of alloys and compounds 2020-10, Vol.838, p.155591, Article 155591 |
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| container_title | Journal of alloys and compounds |
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| creator | Novikova, O.S. Volkova, E.G. Glukhov, A.V. Antonova, O.V. Kostina, A.E. Antonov, B.D. Volkov, A. Yu |
| description | The kinetics of the A1→B2 phase transition in the cryogenically deformed Cu-47at.%Pd alloy has been compared with that both after room-temperature deformation and after quenching from high temperature. For this aim, the evolution of the microstructure, electrical properties and microhardness of the alloy during disorder→order transformation at 400 °C were studied. It was shown that annealing at 400 °C for 1 h led to the formation of a uniform ultrafine-grained ordered structure in the cryo-deformed alloy. In turn, the annealing duration of 1 h is not enough to finish the ordering process in the quenched sample. It was found that some volume of the ordered B2-phase was formed in the cryo-deformed Cu-47at.% Pd alloy after holding at room temperature for 0.5 year.
[Display omitted]
•The evolution of the microstructure and properties of the cryo-deformed Cu-47at.%Pd were studied upon annealing at 400 °C.•Ordering kinetics in the cryo-deformed Cu-47at.%Pd alloy was compared with that in the samples disordered by convention ways.•Ultrafine-grained ordered structure with high strength and low electrical resistivity was formed in the Cu-47at.%Pd alloy.•Slow atomic ordering process was discovered in the cryo-deformed Cu-47at.%Pd alloy during its holding at room temperature. |
| doi_str_mv | 10.1016/j.jallcom.2020.155591 |
| format | Article |
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[Display omitted]
•The evolution of the microstructure and properties of the cryo-deformed Cu-47at.%Pd were studied upon annealing at 400 °C.•Ordering kinetics in the cryo-deformed Cu-47at.%Pd alloy was compared with that in the samples disordered by convention ways.•Ultrafine-grained ordered structure with high strength and low electrical resistivity was formed in the Cu-47at.%Pd alloy.•Slow atomic ordering process was discovered in the cryo-deformed Cu-47at.%Pd alloy during its holding at room temperature.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2020.155591</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Annealing ; Copper base alloys ; Cryogenic deformation ; Cu-Pd alloys ; Electrical properties ; Electrical resistivity ; Evolution ; High temperature ; Intermetallic phases ; Microhardness ; Microstructure ; Order-disorder transformation ; Palladium base alloys ; Phase transitions ; Room temperature ; Solid state reactions ; Ultrafines ; X-ray diffraction</subject><ispartof>Journal of alloys and compounds, 2020-10, Vol.838, p.155591, Article 155591</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-b4ee780274c1958fc95414bf5a7ab529bd70df1c7c56d852c3db297330a2692a3</citedby><cites>FETCH-LOGICAL-c337t-b4ee780274c1958fc95414bf5a7ab529bd70df1c7c56d852c3db297330a2692a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jallcom.2020.155591$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27907,27908,45978</link.rule.ids></links><search><creatorcontrib>Novikova, O.S.</creatorcontrib><creatorcontrib>Volkova, E.G.</creatorcontrib><creatorcontrib>Glukhov, A.V.</creatorcontrib><creatorcontrib>Antonova, O.V.</creatorcontrib><creatorcontrib>Kostina, A.E.</creatorcontrib><creatorcontrib>Antonov, B.D.</creatorcontrib><creatorcontrib>Volkov, A. Yu</creatorcontrib><title>Evolution of the microstructure, electrical resistivity and microhardness during atomic ordering of cryogenically deformed Cu-47at.%Pd alloy</title><title>Journal of alloys and compounds</title><description>The kinetics of the A1→B2 phase transition in the cryogenically deformed Cu-47at.%Pd alloy has been compared with that both after room-temperature deformation and after quenching from high temperature. For this aim, the evolution of the microstructure, electrical properties and microhardness of the alloy during disorder→order transformation at 400 °C were studied. It was shown that annealing at 400 °C for 1 h led to the formation of a uniform ultrafine-grained ordered structure in the cryo-deformed alloy. In turn, the annealing duration of 1 h is not enough to finish the ordering process in the quenched sample. It was found that some volume of the ordered B2-phase was formed in the cryo-deformed Cu-47at.% Pd alloy after holding at room temperature for 0.5 year.
[Display omitted]
•The evolution of the microstructure and properties of the cryo-deformed Cu-47at.%Pd were studied upon annealing at 400 °C.•Ordering kinetics in the cryo-deformed Cu-47at.%Pd alloy was compared with that in the samples disordered by convention ways.•Ultrafine-grained ordered structure with high strength and low electrical resistivity was formed in the Cu-47at.%Pd alloy.•Slow atomic ordering process was discovered in the cryo-deformed Cu-47at.%Pd alloy during its holding at room temperature.</description><subject>Annealing</subject><subject>Copper base alloys</subject><subject>Cryogenic deformation</subject><subject>Cu-Pd alloys</subject><subject>Electrical properties</subject><subject>Electrical resistivity</subject><subject>Evolution</subject><subject>High temperature</subject><subject>Intermetallic phases</subject><subject>Microhardness</subject><subject>Microstructure</subject><subject>Order-disorder transformation</subject><subject>Palladium base alloys</subject><subject>Phase transitions</subject><subject>Room temperature</subject><subject>Solid state reactions</subject><subject>Ultrafines</subject><subject>X-ray diffraction</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkM1q3TAQhUVpoTdJH6EgKNnFN_qxLGtVwiV_EEgW7VrI0jiR8bVSSb7gd8hDRzfOvqthZs45w3wI_aRkSwltLoftYMbRhv2WEVZmQghFv6ANbSWv6qZRX9GGKCaqlrftd3SS0kAIoYrTDXq7PoRxzj5MOPQ4vwDeextDynG2eY5wgWEEm6O3ZsQRkk_ZH3xesJncKn0x0U2QEnZz9NMzNjmUOQ7RwUdfYm1cwjNMx4xxwQ76EPfg8G6uamny9vzJ4bIJyxn61psxwY_Peor-3lz_2d1VD4-397urh8pyLnPV1QCyJUzWlirR9laJmtZdL4w0nWCqc5K4nlppReNawSx3HVOSc2JYo5jhp-jXmvsaw78ZUtZDmONUTmpW14wzSpgoKrGqjjxShF6_Rr83cdGU6CN4PehP8PoIXq_gi-_36oPywsFD1Ml6mCw4HwtK7YL_T8I7_quRZw</recordid><startdate>20201015</startdate><enddate>20201015</enddate><creator>Novikova, O.S.</creator><creator>Volkova, E.G.</creator><creator>Glukhov, A.V.</creator><creator>Antonova, O.V.</creator><creator>Kostina, A.E.</creator><creator>Antonov, B.D.</creator><creator>Volkov, A. 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Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-b4ee780274c1958fc95414bf5a7ab529bd70df1c7c56d852c3db297330a2692a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Annealing</topic><topic>Copper base alloys</topic><topic>Cryogenic deformation</topic><topic>Cu-Pd alloys</topic><topic>Electrical properties</topic><topic>Electrical resistivity</topic><topic>Evolution</topic><topic>High temperature</topic><topic>Intermetallic phases</topic><topic>Microhardness</topic><topic>Microstructure</topic><topic>Order-disorder transformation</topic><topic>Palladium base alloys</topic><topic>Phase transitions</topic><topic>Room temperature</topic><topic>Solid state reactions</topic><topic>Ultrafines</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Novikova, O.S.</creatorcontrib><creatorcontrib>Volkova, E.G.</creatorcontrib><creatorcontrib>Glukhov, A.V.</creatorcontrib><creatorcontrib>Antonova, O.V.</creatorcontrib><creatorcontrib>Kostina, A.E.</creatorcontrib><creatorcontrib>Antonov, B.D.</creatorcontrib><creatorcontrib>Volkov, A. 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Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evolution of the microstructure, electrical resistivity and microhardness during atomic ordering of cryogenically deformed Cu-47at.%Pd alloy</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2020-10-15</date><risdate>2020</risdate><volume>838</volume><spage>155591</spage><pages>155591-</pages><artnum>155591</artnum><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>The kinetics of the A1→B2 phase transition in the cryogenically deformed Cu-47at.%Pd alloy has been compared with that both after room-temperature deformation and after quenching from high temperature. For this aim, the evolution of the microstructure, electrical properties and microhardness of the alloy during disorder→order transformation at 400 °C were studied. It was shown that annealing at 400 °C for 1 h led to the formation of a uniform ultrafine-grained ordered structure in the cryo-deformed alloy. In turn, the annealing duration of 1 h is not enough to finish the ordering process in the quenched sample. It was found that some volume of the ordered B2-phase was formed in the cryo-deformed Cu-47at.% Pd alloy after holding at room temperature for 0.5 year.
[Display omitted]
•The evolution of the microstructure and properties of the cryo-deformed Cu-47at.%Pd were studied upon annealing at 400 °C.•Ordering kinetics in the cryo-deformed Cu-47at.%Pd alloy was compared with that in the samples disordered by convention ways.•Ultrafine-grained ordered structure with high strength and low electrical resistivity was formed in the Cu-47at.%Pd alloy.•Slow atomic ordering process was discovered in the cryo-deformed Cu-47at.%Pd alloy during its holding at room temperature.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2020.155591</doi></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Annealing Copper base alloys Cryogenic deformation Cu-Pd alloys Electrical properties Electrical resistivity Evolution High temperature Intermetallic phases Microhardness Microstructure Order-disorder transformation Palladium base alloys Phase transitions Room temperature Solid state reactions Ultrafines X-ray diffraction |
| title | Evolution of the microstructure, electrical resistivity and microhardness during atomic ordering of cryogenically deformed Cu-47at.%Pd alloy |
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