Microstructure evolution of a Cu-15Ni-8Sn-0.8Nb alloy during prior deformation and aging treatment
The microstructure evolution of Cu-15Ni-8Sn-0.8Nb alloy during prior cold deformation by rotary swaging (RS) and subsequent aging treatment was investigated. Electron back scattered diffraction (EBSD) results indicated that the deformed microstructure mainly consisted of refined and elongated grains...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2017-09, Vol.704, p.128-137 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Ouyang, Yi Gan, Xueping Li, Zhou Zhou, Kechao Zhang, Shizhong Jiang, Yexin Zhang, Xianwei |
| description | The microstructure evolution of Cu-15Ni-8Sn-0.8Nb alloy during prior cold deformation by rotary swaging (RS) and subsequent aging treatment was investigated. Electron back scattered diffraction (EBSD) results indicated that the deformed microstructure mainly consisted of refined and elongated grains. Discontinuous precipitates appeared at previous grain boundaries (PGBs) and shear bands after deformation of 45 pct reduction. Transmission electron microscope (TEM) studies revealed that the transformation kinetics of both DO22 ordered phases and discontinuous precipitates were significantly accelerated by prior deformation, and the transformation from DO22 to L12 ordering was suppressed to a certain degree. The maximum yield strength of the specimens with 45 pct reduction reached to about 1230MPa after aging treatment, but the corresponding ductility was poor due to the rapid growth of discontinuous precipitates. |
| doi_str_mv | 10.1016/j.msea.2017.07.065 |
| format | Article |
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Electron back scattered diffraction (EBSD) results indicated that the deformed microstructure mainly consisted of refined and elongated grains. Discontinuous precipitates appeared at previous grain boundaries (PGBs) and shear bands after deformation of 45 pct reduction. Transmission electron microscope (TEM) studies revealed that the transformation kinetics of both DO22 ordered phases and discontinuous precipitates were significantly accelerated by prior deformation, and the transformation from DO22 to L12 ordering was suppressed to a certain degree. The maximum yield strength of the specimens with 45 pct reduction reached to about 1230MPa after aging treatment, but the corresponding ductility was poor due to the rapid growth of discontinuous precipitates.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2017.07.065</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Age-hardening ; Aging (metallurgy) ; Alloys ; Cellular precipitates ; Copper base alloys ; Cu-15Ni-8Sn-0.8Nb alloy ; Deformation ; Diffraction ; Edge dislocations ; Elongation ; Evolution ; Grain boundaries ; Microstructure ; Microstructure evolution ; Prior cold deformation ; Reaction kinetics ; Reduction ; Rotary swaging ; Shear bands ; Swaging ; Transformation kinetics ; Transformations ; Yield stress</subject><ispartof>Materials science & engineering. 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A, Structural materials : properties, microstructure and processing</title><description>The microstructure evolution of Cu-15Ni-8Sn-0.8Nb alloy during prior cold deformation by rotary swaging (RS) and subsequent aging treatment was investigated. Electron back scattered diffraction (EBSD) results indicated that the deformed microstructure mainly consisted of refined and elongated grains. Discontinuous precipitates appeared at previous grain boundaries (PGBs) and shear bands after deformation of 45 pct reduction. Transmission electron microscope (TEM) studies revealed that the transformation kinetics of both DO22 ordered phases and discontinuous precipitates were significantly accelerated by prior deformation, and the transformation from DO22 to L12 ordering was suppressed to a certain degree. The maximum yield strength of the specimens with 45 pct reduction reached to about 1230MPa after aging treatment, but the corresponding ductility was poor due to the rapid growth of discontinuous precipitates.</description><subject>Age-hardening</subject><subject>Aging (metallurgy)</subject><subject>Alloys</subject><subject>Cellular precipitates</subject><subject>Copper base alloys</subject><subject>Cu-15Ni-8Sn-0.8Nb alloy</subject><subject>Deformation</subject><subject>Diffraction</subject><subject>Edge dislocations</subject><subject>Elongation</subject><subject>Evolution</subject><subject>Grain boundaries</subject><subject>Microstructure</subject><subject>Microstructure evolution</subject><subject>Prior cold deformation</subject><subject>Reaction kinetics</subject><subject>Reduction</subject><subject>Rotary swaging</subject><subject>Shear bands</subject><subject>Swaging</subject><subject>Transformation kinetics</subject><subject>Transformations</subject><subject>Yield stress</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouK7-AU8Bz635aNMGvMjiF6zrQT2HNJ0sKdtmTdIF_72t61kYmMO8z8y8L0LXlOSUUHHb5X0EnTNCq5xMJcoTtKB1xbNCcnGKFkQympVE8nN0EWNHCKEFKReoeXUm-JjCaNIYAMPB78bk_IC9xRqvxoyWG5fV70NG8nrTYL3b-W_cjsENW7wPzgfcgvWh17-UHlqst_MsBdCphyFdojOrdxGu_voSfT4-fKyes_Xb08vqfp0ZzuqUVbXgDbNSasOI4doAk7Koq8KWrIWCg2xbpivZWANNxYSmGpiQVoOVRlvOl-jmuHcf_NcIManOj2GYTioqhSBVIeSsYkfVbDsGsGoy0evwrShRc5aqU3OWas5SkalEOUF3Rwim_w8OgorGwWCgdQFMUq13_-E_RGh9_g</recordid><startdate>20170917</startdate><enddate>20170917</enddate><creator>Ouyang, Yi</creator><creator>Gan, Xueping</creator><creator>Li, Zhou</creator><creator>Zhou, Kechao</creator><creator>Zhang, Shizhong</creator><creator>Jiang, Yexin</creator><creator>Zhang, Xianwei</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></search><sort><creationdate>20170917</creationdate><title>Microstructure evolution of a Cu-15Ni-8Sn-0.8Nb alloy during prior deformation and aging treatment</title><author>Ouyang, Yi ; Gan, Xueping ; Li, Zhou ; Zhou, Kechao ; Zhang, Shizhong ; Jiang, Yexin ; Zhang, Xianwei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-7863b2f99ac20c3ace2994874f52de43e9dd2a79bfceb726a1ae269faef9caf33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Age-hardening</topic><topic>Aging (metallurgy)</topic><topic>Alloys</topic><topic>Cellular precipitates</topic><topic>Copper base alloys</topic><topic>Cu-15Ni-8Sn-0.8Nb alloy</topic><topic>Deformation</topic><topic>Diffraction</topic><topic>Edge dislocations</topic><topic>Elongation</topic><topic>Evolution</topic><topic>Grain boundaries</topic><topic>Microstructure</topic><topic>Microstructure evolution</topic><topic>Prior cold deformation</topic><topic>Reaction kinetics</topic><topic>Reduction</topic><topic>Rotary swaging</topic><topic>Shear bands</topic><topic>Swaging</topic><topic>Transformation kinetics</topic><topic>Transformations</topic><topic>Yield stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ouyang, Yi</creatorcontrib><creatorcontrib>Gan, Xueping</creatorcontrib><creatorcontrib>Li, Zhou</creatorcontrib><creatorcontrib>Zhou, Kechao</creatorcontrib><creatorcontrib>Zhang, Shizhong</creatorcontrib><creatorcontrib>Jiang, Yexin</creatorcontrib><creatorcontrib>Zhang, Xianwei</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ouyang, Yi</au><au>Gan, Xueping</au><au>Li, Zhou</au><au>Zhou, Kechao</au><au>Zhang, Shizhong</au><au>Jiang, Yexin</au><au>Zhang, Xianwei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructure evolution of a Cu-15Ni-8Sn-0.8Nb alloy during prior deformation and aging treatment</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2017-09-17</date><risdate>2017</risdate><volume>704</volume><spage>128</spage><epage>137</epage><pages>128-137</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The microstructure evolution of Cu-15Ni-8Sn-0.8Nb alloy during prior cold deformation by rotary swaging (RS) and subsequent aging treatment was investigated. Electron back scattered diffraction (EBSD) results indicated that the deformed microstructure mainly consisted of refined and elongated grains. Discontinuous precipitates appeared at previous grain boundaries (PGBs) and shear bands after deformation of 45 pct reduction. Transmission electron microscope (TEM) studies revealed that the transformation kinetics of both DO22 ordered phases and discontinuous precipitates were significantly accelerated by prior deformation, and the transformation from DO22 to L12 ordering was suppressed to a certain degree. The maximum yield strength of the specimens with 45 pct reduction reached to about 1230MPa after aging treatment, but the corresponding ductility was poor due to the rapid growth of discontinuous precipitates.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2017.07.065</doi><tpages>10</tpages></addata></record> |
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| subjects | Age-hardening Aging (metallurgy) Alloys Cellular precipitates Copper base alloys Cu-15Ni-8Sn-0.8Nb alloy Deformation Diffraction Edge dislocations Elongation Evolution Grain boundaries Microstructure Microstructure evolution Prior cold deformation Reaction kinetics Reduction Rotary swaging Shear bands Swaging Transformation kinetics Transformations Yield stress |
| title | Microstructure evolution of a Cu-15Ni-8Sn-0.8Nb alloy during prior deformation and aging treatment |
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