Effects of Initial Texture on the Formation of Deformation Twins in a Cu-Zn System Alloy.
| Title: | Effects of Initial Texture on the Formation of Deformation Twins in a Cu-Zn System Alloy. |
|---|---|
| Authors: | Yanshuo Li, Norimitsu Koga, Chihiro Watanabe, Hiromi Miura |
| Source: | Materials Transactions; 2023, Vol. 64 Issue 8, p2000-2005, 6p |
| Subject Terms: | COLD rolling, DEFORMATIONS (Mechanics), MECHANICAL alloying, COPPER, COPPER-zinc alloys |
| Abstract: | Heavily and simply cold-rolled Cu alloys with ultra-low stacking fault energy exhibit superior strength/ductility balance. The excellent mechanical properties are attained by the formation of a heterogeneous-nano (HN) structure consisting of twin domains, shear bands, and lamellar grains. In this study, using a CuZn system alloy, two specimens with different initial textures were subjected to cold rolling. One has a strong ©001ª texture along the normal direction (ND) of the rolling surface, and the other has a ©111ª texture. Then, the effects of the initial texture of specimens on the formation of deformation twins in the early stage of cold rolling were precisely investigated. Also, the microstructure and mechanical properties of the alloys with finally developed HN structure after 90%-cold-rolling were examined. At the early stage of rolling, the mechanical twinning occurred more frequently in the specimen with ©001ª texture than in the ©111ª one. The difference in the twinning frequency can be reasonably explained by the significant difference in the ratio of the Schmid factor for twinning partial to the one for the perfect dislocation. On the 90% cold rolling, the ©001ª specimen exhibited better strength/ductility balance than that of the ©111ª specimen since the ©001ª one has a higher volume fraction of the deformation twin domains. It can be concluded that the initial texture of the specimen before the cold rolling plays an important role in the mechanical properties of HN structured materials via the formation of the twin domains. [ABSTRACT FROM AUTHOR] |
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| Database: | Complementary Index |
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| Header | DbId: edb DbLabel: Complementary Index An: 170734100 RelevancyScore: 983 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 983.14501953125 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of Initial Texture on the Formation of Deformation Twins in a Cu-Zn System Alloy. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yanshuo+Li%22">Yanshuo Li</searchLink><br /><searchLink fieldCode="AR" term="%22Norimitsu+Koga%22">Norimitsu Koga</searchLink><br /><searchLink fieldCode="AR" term="%22Chihiro+Watanabe%22">Chihiro Watanabe</searchLink><br /><searchLink fieldCode="AR" term="%22Hiromi+Miura%22">Hiromi Miura</searchLink> – Name: TitleSource Label: Source Group: Src Data: Materials Transactions; 2023, Vol. 64 Issue 8, p2000-2005, 6p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22COLD+rolling%22">COLD rolling</searchLink><br /><searchLink fieldCode="DE" term="%22DEFORMATIONS+%28Mechanics%29%22">DEFORMATIONS (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22MECHANICAL+alloying%22">MECHANICAL alloying</searchLink><br /><searchLink fieldCode="DE" term="%22COPPER%22">COPPER</searchLink><br /><searchLink fieldCode="DE" term="%22COPPER-zinc+alloys%22">COPPER-zinc alloys</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Heavily and simply cold-rolled Cu alloys with ultra-low stacking fault energy exhibit superior strength/ductility balance. The excellent mechanical properties are attained by the formation of a heterogeneous-nano (HN) structure consisting of twin domains, shear bands, and lamellar grains. In this study, using a CuZn system alloy, two specimens with different initial textures were subjected to cold rolling. One has a strong ©001ª texture along the normal direction (ND) of the rolling surface, and the other has a ©111ª texture. Then, the effects of the initial texture of specimens on the formation of deformation twins in the early stage of cold rolling were precisely investigated. Also, the microstructure and mechanical properties of the alloys with finally developed HN structure after 90%-cold-rolling were examined. At the early stage of rolling, the mechanical twinning occurred more frequently in the specimen with ©001ª texture than in the ©111ª one. The difference in the twinning frequency can be reasonably explained by the significant difference in the ratio of the Schmid factor for twinning partial to the one for the perfect dislocation. On the 90% cold rolling, the ©001ª specimen exhibited better strength/ductility balance than that of the ©111ª specimen since the ©001ª one has a higher volume fraction of the deformation twin domains. It can be concluded that the initial texture of the specimen before the cold rolling plays an important role in the mechanical properties of HN structured materials via the formation of the twin domains. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Materials Transactions is the property of Japan Institute of Metals & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.2320/matertrans.MT-D2023003 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 2000 Subjects: – SubjectFull: COLD rolling Type: general – SubjectFull: DEFORMATIONS (Mechanics) Type: general – SubjectFull: MECHANICAL alloying Type: general – SubjectFull: COPPER Type: general – SubjectFull: COPPER-zinc alloys Type: general Titles: – TitleFull: Effects of Initial Texture on the Formation of Deformation Twins in a Cu-Zn System Alloy. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yanshuo Li – PersonEntity: Name: NameFull: Norimitsu Koga – PersonEntity: Name: NameFull: Chihiro Watanabe – PersonEntity: Name: NameFull: Hiromi Miura IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: 2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 13459678 Numbering: – Type: volume Value: 64 – Type: issue Value: 8 Titles: – TitleFull: Materials Transactions Type: main |
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