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Evolution of a martensitic structure in a Cu–Al alloy during processing by high-pressure torsion
A Cu-11.8 wt% Al alloy was quenched in iced water from a high temperature (850 °C) to introduce a martensitic phase and then the alloy was processed using quasi-constrained high-pressure torsion (HPT). The micro-hardness and the microstructures of the unprocessed and severely deformed materials were...
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| Published in: | Journal of materials science 2013-07, Vol.48 (13), p.4613-4619 |
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| Main Authors: | , , , , |
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| cites | cdi_FETCH-LOGICAL-c488t-beefd8b0b8314d6e71fba932db6cce1c32f492dcbc87716ce70d02f2d5812ec73 |
| container_end_page | 4619 |
| container_issue | 13 |
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| container_title | Journal of materials science |
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| creator | Zhang, G. F. Sauvage, X. Wang, J. T. Gao, N. Langdon, T. G. |
| description | A Cu-11.8 wt% Al alloy was quenched in iced water from a high temperature (850 °C) to introduce a martensitic phase and then the alloy was processed using quasi-constrained high-pressure torsion (HPT). The micro-hardness and the microstructures of the unprocessed and severely deformed materials were investigated using a wide range of experimental techniques (X-ray diffraction, optical microscopy, scanning electron microscopy, transmission electron microscopy, and high- resolution TEM). During HPT, a stress-induced martensite–martensite transformation occurs and an
martensite phase is formed. In the deformed material, there are nanoscale deformation bands having high densities of defects and twins in the
martensite. It was observed that a high density of dislocations became pinned and accumulated in the vicinity of twin boundaries, thereby demonstrating a strong interaction between twin boundaries and dislocations during the HPT process. |
| doi_str_mv | 10.1007/s10853-013-7153-8 |
| format | article |
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martensite phase is formed. In the deformed material, there are nanoscale deformation bands having high densities of defects and twins in the
martensite. It was observed that a high density of dislocations became pinned and accumulated in the vicinity of twin boundaries, thereby demonstrating a strong interaction between twin boundaries and dislocations during the HPT process.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1007/s10853-013-7153-8</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Alloys ; Aluminum base alloys ; BOUNDARIES ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Classical Mechanics ; Copper ; COPPER ALLOYS (40 TO 99.3 CU) ; COPPER ALUMINUM ALLOYS ; Copper base alloys ; Crystallography and Scattering Methods ; DEFORMATION ; DENSITY ; Diffraction ; Dislocation density ; Dislocation pinning ; Dislocations ; Heat treating ; High density ; High temperature ; MARTENSITE ; Martensitic transformations ; Materials Science ; Microhardness ; Microscopy ; MICROSTRUCTURES ; Nanostructure ; Nanostructured Materials ; Optical microscopy ; Polymer Sciences ; Scanning electron microscopy ; Solid Mechanics ; Strong interactions (field theory) ; Torsion ; Transmission electron microscopy ; TWIN BOUNDARIES ; Twinning (Crystallography) ; Twins ; X-rays</subject><ispartof>Journal of materials science, 2013-07, Vol.48 (13), p.4613-4619</ispartof><rights>Springer Science+Business Media New York 2013</rights><rights>COPYRIGHT 2013 Springer</rights><rights>Journal of Materials Science is a copyright of Springer, (2013). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c488t-beefd8b0b8314d6e71fba932db6cce1c32f492dcbc87716ce70d02f2d5812ec73</citedby><cites>FETCH-LOGICAL-c488t-beefd8b0b8314d6e71fba932db6cce1c32f492dcbc87716ce70d02f2d5812ec73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Zhang, G. F.</creatorcontrib><creatorcontrib>Sauvage, X.</creatorcontrib><creatorcontrib>Wang, J. T.</creatorcontrib><creatorcontrib>Gao, N.</creatorcontrib><creatorcontrib>Langdon, T. G.</creatorcontrib><title>Evolution of a martensitic structure in a Cu–Al alloy during processing by high-pressure torsion</title><title>Journal of materials science</title><addtitle>J Mater Sci</addtitle><description>A Cu-11.8 wt% Al alloy was quenched in iced water from a high temperature (850 °C) to introduce a martensitic phase and then the alloy was processed using quasi-constrained high-pressure torsion (HPT). The micro-hardness and the microstructures of the unprocessed and severely deformed materials were investigated using a wide range of experimental techniques (X-ray diffraction, optical microscopy, scanning electron microscopy, transmission electron microscopy, and high- resolution TEM). During HPT, a stress-induced martensite–martensite transformation occurs and an
martensite phase is formed. In the deformed material, there are nanoscale deformation bands having high densities of defects and twins in the
martensite. It was observed that a high density of dislocations became pinned and accumulated in the vicinity of twin boundaries, thereby demonstrating a strong interaction between twin boundaries and dislocations during the HPT process.</description><subject>Alloys</subject><subject>Aluminum base alloys</subject><subject>BOUNDARIES</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Classical Mechanics</subject><subject>Copper</subject><subject>COPPER ALLOYS (40 TO 99.3 CU)</subject><subject>COPPER ALUMINUM ALLOYS</subject><subject>Copper base alloys</subject><subject>Crystallography and Scattering Methods</subject><subject>DEFORMATION</subject><subject>DENSITY</subject><subject>Diffraction</subject><subject>Dislocation density</subject><subject>Dislocation pinning</subject><subject>Dislocations</subject><subject>Heat treating</subject><subject>High density</subject><subject>High temperature</subject><subject>MARTENSITE</subject><subject>Martensitic transformations</subject><subject>Materials Science</subject><subject>Microhardness</subject><subject>Microscopy</subject><subject>MICROSTRUCTURES</subject><subject>Nanostructure</subject><subject>Nanostructured Materials</subject><subject>Optical microscopy</subject><subject>Polymer Sciences</subject><subject>Scanning electron microscopy</subject><subject>Solid Mechanics</subject><subject>Strong interactions (field theory)</subject><subject>Torsion</subject><subject>Transmission electron microscopy</subject><subject>TWIN BOUNDARIES</subject><subject>Twinning (Crystallography)</subject><subject>Twins</subject><subject>X-rays</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kd9qFDEUxoNYcN36AN4FvNGLqfk3k-zlslRbKAitXodM5mSbMjtZ80e6d76Db-iTNMMIUkFykcM5v-_wcT6E3lJyQQmRHxMlquUNobyRtBbqBVrRVvJGKMJfohUhjDVMdPQVep3SAyGklYyuUH_5I4wl-zDh4LDBBxMzTMlnb3HKsdhcImA_1dGu_P75aztiM47hhIcS_bTHxxgspDSX_Qnf-_19c4y1MatyiKkuPkdnzowJ3vz51-jbp8uvu6vm5svn6932prFCqdz0AG5QPekVp2LoQFLXmw1nQ99ZC9Ry5sSGDba3SkraWZBkIMyxoVWUgZV8jd4ve6un7wVS1gefLIyjmSCUpGknKZeU8a6i7_5BH0KJU3WnGWs3kglR2TW6WKi9GUH7yYUcja1vgIO3YQLna3_LJZdCdkRUwYdngspkeMx7U1LS13e3z1m6sDaGlCI4fYy-Xv-kKdFzpHqJVNdI9RypVlXDFk06zseH-Nf2_0VPOiqkmA</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Zhang, G. 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F.</au><au>Sauvage, X.</au><au>Wang, J. T.</au><au>Gao, N.</au><au>Langdon, T. G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evolution of a martensitic structure in a Cu–Al alloy during processing by high-pressure torsion</atitle><jtitle>Journal of materials science</jtitle><stitle>J Mater Sci</stitle><date>2013-07-01</date><risdate>2013</risdate><volume>48</volume><issue>13</issue><spage>4613</spage><epage>4619</epage><pages>4613-4619</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><abstract>A Cu-11.8 wt% Al alloy was quenched in iced water from a high temperature (850 °C) to introduce a martensitic phase and then the alloy was processed using quasi-constrained high-pressure torsion (HPT). The micro-hardness and the microstructures of the unprocessed and severely deformed materials were investigated using a wide range of experimental techniques (X-ray diffraction, optical microscopy, scanning electron microscopy, transmission electron microscopy, and high- resolution TEM). During HPT, a stress-induced martensite–martensite transformation occurs and an
martensite phase is formed. In the deformed material, there are nanoscale deformation bands having high densities of defects and twins in the
martensite. It was observed that a high density of dislocations became pinned and accumulated in the vicinity of twin boundaries, thereby demonstrating a strong interaction between twin boundaries and dislocations during the HPT process.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10853-013-7153-8</doi><tpages>7</tpages></addata></record> |
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| subjects | Alloys Aluminum base alloys BOUNDARIES Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Copper COPPER ALLOYS (40 TO 99.3 CU) COPPER ALUMINUM ALLOYS Copper base alloys Crystallography and Scattering Methods DEFORMATION DENSITY Diffraction Dislocation density Dislocation pinning Dislocations Heat treating High density High temperature MARTENSITE Martensitic transformations Materials Science Microhardness Microscopy MICROSTRUCTURES Nanostructure Nanostructured Materials Optical microscopy Polymer Sciences Scanning electron microscopy Solid Mechanics Strong interactions (field theory) Torsion Transmission electron microscopy TWIN BOUNDARIES Twinning (Crystallography) Twins X-rays |
| title | Evolution of a martensitic structure in a Cu–Al alloy during processing by high-pressure torsion |
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