Microstructural studies of crystallization of a Zr-based bulk metallic glass
The evolution of the microstructure of a Zr 52.5Ti 5Cu 17.9Ni 14.6Al 10 alloy during isothermal annealing near the glass transition temperature was studied by transmission electron microscopy (TEM), small-angle neutron scattering (SANS), X-ray diffraction (XRD), and differential scanning calorimetry...
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| Veröffentlicht in: | Acta materialia 2003-08, Vol.51 (14), p.4045-4057 |
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| container_title | Acta materialia |
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| creator | Pekarskaya, E Löffler, J.F Johnson, W.L |
| description | The evolution of the microstructure of a Zr
52.5Ti
5Cu
17.9Ni
14.6Al
10 alloy during isothermal annealing near the glass transition temperature was studied by transmission electron microscopy (TEM), small-angle neutron scattering (SANS), X-ray diffraction (XRD), and differential scanning calorimetry (DSC).
In situ SANS experiments show that an interference maximum develops with isothermal annealing, which is attributed to decomposition in the undercooled liquid state. In agreement with these results, TEM observations show the formation of structural inhomogeneities in the glassy alloy in the early stages of annealing, which are correlated with the partially crystalline microstructure in the later stages. The TEM and XRD data show that finally two nanocrystalline phases form after long-term annealing as a result of the decomposition process in the early stages. Direct evidence for decomposition was obtained using Z-contrast imaging technique that showed a systematic variation of the Zr concentration between the two nanocrystalline phases. |
| doi_str_mv | 10.1016/S1359-6454(03)00225-8 |
| format | Article |
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52.5Ti
5Cu
17.9Ni
14.6Al
10 alloy during isothermal annealing near the glass transition temperature was studied by transmission electron microscopy (TEM), small-angle neutron scattering (SANS), X-ray diffraction (XRD), and differential scanning calorimetry (DSC).
In situ SANS experiments show that an interference maximum develops with isothermal annealing, which is attributed to decomposition in the undercooled liquid state. In agreement with these results, TEM observations show the formation of structural inhomogeneities in the glassy alloy in the early stages of annealing, which are correlated with the partially crystalline microstructure in the later stages. The TEM and XRD data show that finally two nanocrystalline phases form after long-term annealing as a result of the decomposition process in the early stages. Direct evidence for decomposition was obtained using Z-contrast imaging technique that showed a systematic variation of the Zr concentration between the two nanocrystalline phases.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/S1359-6454(03)00225-8</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Cross-disciplinary physics: materials science; rheology ; Crystallization ; Exact sciences and technology ; Glasses (including metallic glasses) ; Materials science ; Metallic glasses ; Metals. Metallurgy ; Physics ; Specific materials ; Transmission electron microscopy</subject><ispartof>Acta materialia, 2003-08, Vol.51 (14), p.4045-4057</ispartof><rights>2003 Acta Materialia Inc.</rights><rights>2003 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c517t-2b0d399e2eef8f9983879698342a34cfd0677ba0f62aaf1f4a2a4e2410111eb83</citedby><cites>FETCH-LOGICAL-c517t-2b0d399e2eef8f9983879698342a34cfd0677ba0f62aaf1f4a2a4e2410111eb83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1359645403002258$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15006239$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Pekarskaya, E</creatorcontrib><creatorcontrib>Löffler, J.F</creatorcontrib><creatorcontrib>Johnson, W.L</creatorcontrib><title>Microstructural studies of crystallization of a Zr-based bulk metallic glass</title><title>Acta materialia</title><description>The evolution of the microstructure of a Zr
52.5Ti
5Cu
17.9Ni
14.6Al
10 alloy during isothermal annealing near the glass transition temperature was studied by transmission electron microscopy (TEM), small-angle neutron scattering (SANS), X-ray diffraction (XRD), and differential scanning calorimetry (DSC).
In situ SANS experiments show that an interference maximum develops with isothermal annealing, which is attributed to decomposition in the undercooled liquid state. In agreement with these results, TEM observations show the formation of structural inhomogeneities in the glassy alloy in the early stages of annealing, which are correlated with the partially crystalline microstructure in the later stages. The TEM and XRD data show that finally two nanocrystalline phases form after long-term annealing as a result of the decomposition process in the early stages. Direct evidence for decomposition was obtained using Z-contrast imaging technique that showed a systematic variation of the Zr concentration between the two nanocrystalline phases.</description><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Crystallization</subject><subject>Exact sciences and technology</subject><subject>Glasses (including metallic glasses)</subject><subject>Materials science</subject><subject>Metallic glasses</subject><subject>Metals. Metallurgy</subject><subject>Physics</subject><subject>Specific materials</subject><subject>Transmission electron microscopy</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqNkEtLxDAQgIsouK7-BKEXRQ_VvNq0JxHxBSse1IuXME0nEs1uNdMK-uttdxWPepph-Ob1JckuZ0ec8eL4jsu8ygqVqwMmDxkTIs_KtWTCSy0zoXK5PuQ_yGayRfTMGBdasUkyu_E2ttTF3nZ9hJBS1zceKW1dauMHdRCC_4TOt4uxBOljzGogbNK6Dy_pHJeATZ8CEG0nGw4C4c53nCYPF-f3Z1fZ7Pby-ux0ltmc6y4TNWtkVaFAdKWrqlKWuiqGoARIZV3DCq1rYK4QAI47BQIUCjU8yznWpZwm-6u5r7F965E6M_dkMQRYYNuTEbpUTIr8P6CUutIDmK_AUQZFdOY1-jnED8OZGSWbpWQzGjRMmqVkM16y970AyEJwERbW029zzlghZDVwJysOBy3vHqMh63FhsfERbWea1v-x6Qsvt5Cz</recordid><startdate>20030815</startdate><enddate>20030815</enddate><creator>Pekarskaya, E</creator><creator>Löffler, J.F</creator><creator>Johnson, W.L</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20030815</creationdate><title>Microstructural studies of crystallization of a Zr-based bulk metallic glass</title><author>Pekarskaya, E ; Löffler, J.F ; Johnson, W.L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c517t-2b0d399e2eef8f9983879698342a34cfd0677ba0f62aaf1f4a2a4e2410111eb83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Applied sciences</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Crystallization</topic><topic>Exact sciences and technology</topic><topic>Glasses (including metallic glasses)</topic><topic>Materials science</topic><topic>Metallic glasses</topic><topic>Metals. Metallurgy</topic><topic>Physics</topic><topic>Specific materials</topic><topic>Transmission electron microscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pekarskaya, E</creatorcontrib><creatorcontrib>Löffler, J.F</creatorcontrib><creatorcontrib>Johnson, W.L</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pekarskaya, E</au><au>Löffler, J.F</au><au>Johnson, W.L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructural studies of crystallization of a Zr-based bulk metallic glass</atitle><jtitle>Acta materialia</jtitle><date>2003-08-15</date><risdate>2003</risdate><volume>51</volume><issue>14</issue><spage>4045</spage><epage>4057</epage><pages>4045-4057</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>The evolution of the microstructure of a Zr
52.5Ti
5Cu
17.9Ni
14.6Al
10 alloy during isothermal annealing near the glass transition temperature was studied by transmission electron microscopy (TEM), small-angle neutron scattering (SANS), X-ray diffraction (XRD), and differential scanning calorimetry (DSC).
In situ SANS experiments show that an interference maximum develops with isothermal annealing, which is attributed to decomposition in the undercooled liquid state. In agreement with these results, TEM observations show the formation of structural inhomogeneities in the glassy alloy in the early stages of annealing, which are correlated with the partially crystalline microstructure in the later stages. The TEM and XRD data show that finally two nanocrystalline phases form after long-term annealing as a result of the decomposition process in the early stages. Direct evidence for decomposition was obtained using Z-contrast imaging technique that showed a systematic variation of the Zr concentration between the two nanocrystalline phases.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S1359-6454(03)00225-8</doi><tpages>13</tpages></addata></record> |
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| ispartof | Acta materialia, 2003-08, Vol.51 (14), p.4045-4057 |
| issn | 1359-6454 1873-2453 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Crystallization Exact sciences and technology Glasses (including metallic glasses) Materials science Metallic glasses Metals. Metallurgy Physics Specific materials Transmission electron microscopy |
| title | Microstructural studies of crystallization of a Zr-based bulk metallic glass |
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