In Situ Characterization at Elevated Temperatures of a New Ni-Based Superalloy VDM-780 Premium
A new Ni-base superalloy VDM-780 Premium was developed for higher service temperatures (above 650 °C), keeping the good processing characteristics of alloy 718. This article presents, for the first time, the morphology and the microstructure characterization of this newly developed superalloy VDM-78...
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| Veröffentlicht in: | Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2018-09, Vol.49 (9), p.4373-4381 |
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| creator | Solís, C. Munke, J. Bergner, M. Kriele, A. Mühlbauer, M. J. Cheptiakov, D. V. Gehrmann, B. Rösler, J. Gilles, R. |
| description | A new Ni-base superalloy VDM-780 Premium was developed for higher service temperatures (above 650 °C), keeping the good processing characteristics of alloy 718. This article presents, for the first time, the morphology and the microstructure characterization of this newly developed superalloy VDM-780 by means of scanning electron microscopy (SEM) and neutron and X-ray diffraction (XRD), after three different aging treatments performed for setting up different microstructures. Results show the presence of the
γ
-matrix,
γ
′-hardening phase, and a high-temperature phase whose structure is compatible with
δ
and
η
phases but whose exact crystal structure or the possibility of two different high-temperature phases still remains open. Rietveld refinements have allowed phase identification, determination of the lattice constants, and the weight fractions of constituting phases and shown that the presence of the different phases, amount, and morphology highly depend on the aging treatments. No traces of the
γ
″ phase are observed regardless of the heat treatment.
In situ
neutron diffraction (ND) studies at high temperature have allowed the determination of the solvus temperatures of the different phases present in each material after the corresponding aging treatment as well as the study of the evolution of their lattice parameters with temperature. The Vickers hardness (HV) of the three different samples was measured, and the results are correlated with the amount and particle size of the
γ
′-hardening phase of each sample. |
| doi_str_mv | 10.1007/s11661-018-4761-6 |
| format | Article |
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γ
-matrix,
γ
′-hardening phase, and a high-temperature phase whose structure is compatible with
δ
and
η
phases but whose exact crystal structure or the possibility of two different high-temperature phases still remains open. Rietveld refinements have allowed phase identification, determination of the lattice constants, and the weight fractions of constituting phases and shown that the presence of the different phases, amount, and morphology highly depend on the aging treatments. No traces of the
γ
″ phase are observed regardless of the heat treatment.
In situ
neutron diffraction (ND) studies at high temperature have allowed the determination of the solvus temperatures of the different phases present in each material after the corresponding aging treatment as well as the study of the evolution of their lattice parameters with temperature. The Vickers hardness (HV) of the three different samples was measured, and the results are correlated with the amount and particle size of the
γ
′-hardening phase of each sample.</description><identifier>ISSN: 1073-5623</identifier><identifier>EISSN: 1543-1940</identifier><identifier>DOI: 10.1007/s11661-018-4761-6</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Aging ; Aging (materials) ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Correlation analysis ; Crystal structure ; Diamond pyramid hardness ; Diffraction ; Heat treatment ; High temperature ; Lattice parameters ; Materials Science ; Metallic Materials ; Morphology ; Nanotechnology ; Neutron diffraction ; Nickel base alloys ; Phases ; Scanning electron microscopy ; Setting (hardening) ; Structural Materials ; Superalloys ; Surfaces and Interfaces ; Thin Films ; Third European Symposium on Superalloys and their Applications ; Topical Collection: Superalloys and Their Applications ; X-ray diffraction</subject><ispartof>Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2018-09, Vol.49 (9), p.4373-4381</ispartof><rights>The Author(s) 2018</rights><rights>Metallurgical and Materials Transactions A is a copyright of Springer, (2018). All Rights Reserved. © 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c359t-283f50c0b2b4932d01592cb5a7fb6cf4c19282412467fe8ed040c97e389a4b043</citedby><cites>FETCH-LOGICAL-c359t-283f50c0b2b4932d01592cb5a7fb6cf4c19282412467fe8ed040c97e389a4b043</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11661-018-4761-6$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11661-018-4761-6$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Solís, C.</creatorcontrib><creatorcontrib>Munke, J.</creatorcontrib><creatorcontrib>Bergner, M.</creatorcontrib><creatorcontrib>Kriele, A.</creatorcontrib><creatorcontrib>Mühlbauer, M. J.</creatorcontrib><creatorcontrib>Cheptiakov, D. V.</creatorcontrib><creatorcontrib>Gehrmann, B.</creatorcontrib><creatorcontrib>Rösler, J.</creatorcontrib><creatorcontrib>Gilles, R.</creatorcontrib><title>In Situ Characterization at Elevated Temperatures of a New Ni-Based Superalloy VDM-780 Premium</title><title>Metallurgical and materials transactions. A, Physical metallurgy and materials science</title><addtitle>Metall Mater Trans A</addtitle><description>A new Ni-base superalloy VDM-780 Premium was developed for higher service temperatures (above 650 °C), keeping the good processing characteristics of alloy 718. This article presents, for the first time, the morphology and the microstructure characterization of this newly developed superalloy VDM-780 by means of scanning electron microscopy (SEM) and neutron and X-ray diffraction (XRD), after three different aging treatments performed for setting up different microstructures. Results show the presence of the
γ
-matrix,
γ
′-hardening phase, and a high-temperature phase whose structure is compatible with
δ
and
η
phases but whose exact crystal structure or the possibility of two different high-temperature phases still remains open. Rietveld refinements have allowed phase identification, determination of the lattice constants, and the weight fractions of constituting phases and shown that the presence of the different phases, amount, and morphology highly depend on the aging treatments. No traces of the
γ
″ phase are observed regardless of the heat treatment.
In situ
neutron diffraction (ND) studies at high temperature have allowed the determination of the solvus temperatures of the different phases present in each material after the corresponding aging treatment as well as the study of the evolution of their lattice parameters with temperature. The Vickers hardness (HV) of the three different samples was measured, and the results are correlated with the amount and particle size of the
γ
′-hardening phase of each sample.</description><subject>Aging</subject><subject>Aging (materials)</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Correlation analysis</subject><subject>Crystal structure</subject><subject>Diamond pyramid hardness</subject><subject>Diffraction</subject><subject>Heat treatment</subject><subject>High temperature</subject><subject>Lattice parameters</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Morphology</subject><subject>Nanotechnology</subject><subject>Neutron diffraction</subject><subject>Nickel base alloys</subject><subject>Phases</subject><subject>Scanning electron microscopy</subject><subject>Setting (hardening)</subject><subject>Structural Materials</subject><subject>Superalloys</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>Third European Symposium on Superalloys and their Applications</subject><subject>Topical Collection: Superalloys and Their Applications</subject><subject>X-ray diffraction</subject><issn>1073-5623</issn><issn>1543-1940</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kFtLwzAYhoMoOKc_wLuA19Evh6bNpc7TYE5h00tDmqXasbYzSZX5622p4JVX3wvv4YMHoVMK5xQgvQiUSkkJ0IyItBNyD41oIjihSsB-pyHlJJGMH6KjENYAQBWXI_Q6rfGijC2evBtvbHS-_DaxbGpsIr7ZuE8T3QovXbV13sTWu4CbAhs8d194XpIrEzp70fbuZtPs8Mv1A0kzwE_eVWVbHaODwmyCO_m9Y_R8e7Oc3JPZ4910cjkjlicqEpbxIgELOcuF4mwFNFHM5olJi1zaQliqWMYEZUKmhcvcCgRYlTqeKSNyEHyMzobdrW8-WheiXjetr7uXmoGUWUqByS5Fh5T1TQjeFXrry8r4naage4x6wKg7jLrHqPsOGzqhy9Zvzv8t_1_6AfUvcx4</recordid><startdate>20180901</startdate><enddate>20180901</enddate><creator>Solís, C.</creator><creator>Munke, J.</creator><creator>Bergner, M.</creator><creator>Kriele, A.</creator><creator>Mühlbauer, M. 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A, Physical metallurgy and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Solís, C.</au><au>Munke, J.</au><au>Bergner, M.</au><au>Kriele, A.</au><au>Mühlbauer, M. J.</au><au>Cheptiakov, D. V.</au><au>Gehrmann, B.</au><au>Rösler, J.</au><au>Gilles, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>In Situ Characterization at Elevated Temperatures of a New Ni-Based Superalloy VDM-780 Premium</atitle><jtitle>Metallurgical and materials transactions. A, Physical metallurgy and materials science</jtitle><stitle>Metall Mater Trans A</stitle><date>2018-09-01</date><risdate>2018</risdate><volume>49</volume><issue>9</issue><spage>4373</spage><epage>4381</epage><pages>4373-4381</pages><issn>1073-5623</issn><eissn>1543-1940</eissn><abstract>A new Ni-base superalloy VDM-780 Premium was developed for higher service temperatures (above 650 °C), keeping the good processing characteristics of alloy 718. This article presents, for the first time, the morphology and the microstructure characterization of this newly developed superalloy VDM-780 by means of scanning electron microscopy (SEM) and neutron and X-ray diffraction (XRD), after three different aging treatments performed for setting up different microstructures. Results show the presence of the
γ
-matrix,
γ
′-hardening phase, and a high-temperature phase whose structure is compatible with
δ
and
η
phases but whose exact crystal structure or the possibility of two different high-temperature phases still remains open. Rietveld refinements have allowed phase identification, determination of the lattice constants, and the weight fractions of constituting phases and shown that the presence of the different phases, amount, and morphology highly depend on the aging treatments. No traces of the
γ
″ phase are observed regardless of the heat treatment.
In situ
neutron diffraction (ND) studies at high temperature have allowed the determination of the solvus temperatures of the different phases present in each material after the corresponding aging treatment as well as the study of the evolution of their lattice parameters with temperature. The Vickers hardness (HV) of the three different samples was measured, and the results are correlated with the amount and particle size of the
γ
′-hardening phase of each sample.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11661-018-4761-6</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Aging Aging (materials) Characterization and Evaluation of Materials Chemistry and Materials Science Correlation analysis Crystal structure Diamond pyramid hardness Diffraction Heat treatment High temperature Lattice parameters Materials Science Metallic Materials Morphology Nanotechnology Neutron diffraction Nickel base alloys Phases Scanning electron microscopy Setting (hardening) Structural Materials Superalloys Surfaces and Interfaces Thin Films Third European Symposium on Superalloys and their Applications Topical Collection: Superalloys and Their Applications X-ray diffraction |
| title | In Situ Characterization at Elevated Temperatures of a New Ni-Based Superalloy VDM-780 Premium |
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