Research on the processes of deformation and failure in coarse- and ultrafine-grain states of Zr1–Nb alloys by digital image correlation and infrared thermography; Materials Science and Engineering: A; Vol. 784
| Parent link: | Materials Science and Engineering: A Vol. 784.— 2020.— [139203, 18 p.] |
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| Corporate Authors: | , , |
| מחברים אחרים: | , , , , , , , , , , , , , |
| סיכום: | Title screen The mechanical behavior of coarse- and ultrafine-grained (CG/UFG) Zr-1Nb alloy specimens under quasi-static tensile testing, the distribution of εxx, εyy, εxy strains and the evolution of temperature patterns have been studied using the techniques of digital image correlation and infrared thermography. The microstructure of the Zr-1Nb alloy in the initial CG and UFG states, as well as after deformation at the prefracture stage, has been investigated. A study of the accumulation and dissipation of energy in these materials under tensile load has demonstrated the influence of the alloy heat capacity on these processes. It has been found that, under tensile testing, the Zr-1Nb alloy in the UFG state is characterized by a stage with constant temperature, which takes place up to εtrue≈0.04 thus indicating that UFG materials, unlike CG ones, more efficiently use the structural energy absorption channel during deformation. The prefracture stage of the Zr-1Nb in the UFG state is characterized by the sharp temperature increase up to 60 °C. At this stage, the strain hardening coefficient becomes negative reaching values up to -6.5 GPa thus indicating local material softening before fracture. The formation of large local areas with disoriented mesh structure of dislocations is another feature of structural transformations in the Zr-1Nb alloy in the UFG state before fracture that also indicates a local material softening. Режим доступа: по договору с организацией-держателем ресурса |
| שפה: | אנגלית |
| יצא לאור: |
2020
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| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1016/j.msea.2020.139203 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662334 |
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| 200 | 1 | |a Research on the processes of deformation and failure in coarse- and ultrafine-grain states of Zr1–Nb alloys by digital image correlation and infrared thermography |f Yu. P. Sharkeev, V. P. Vavilov, V. A. Skripnyak [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 72 tit.] | ||
| 330 | |a The mechanical behavior of coarse- and ultrafine-grained (CG/UFG) Zr-1Nb alloy specimens under quasi-static tensile testing, the distribution of εxx, εyy, εxy strains and the evolution of temperature patterns have been studied using the techniques of digital image correlation and infrared thermography. The microstructure of the Zr-1Nb alloy in the initial CG and UFG states, as well as after deformation at the prefracture stage, has been investigated. A study of the accumulation and dissipation of energy in these materials under tensile load has demonstrated the influence of the alloy heat capacity on these processes. It has been found that, under tensile testing, the Zr-1Nb alloy in the UFG state is characterized by a stage with constant temperature, which takes place up to εtrue≈0.04 thus indicating that UFG materials, unlike CG ones, more efficiently use the structural energy absorption channel during deformation. The prefracture stage of the Zr-1Nb in the UFG state is characterized by the sharp temperature increase up to 60 °C. At this stage, the strain hardening coefficient becomes negative reaching values up to -6.5 GPa thus indicating local material softening before fracture. The formation of large local areas with disoriented mesh structure of dislocations is another feature of structural transformations in the Zr-1Nb alloy in the UFG state before fracture that also indicates a local material softening. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Materials Science and Engineering: A | ||
| 463 | |t Vol. 784 |v [139203, 18 p.] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a coarse- and ultrafine-grained alloy | |
| 610 | 1 | |a tensile test | |
| 610 | 1 | |a severe plastic deformation | |
| 610 | 1 | |a microstructure | |
| 610 | 1 | |a digital image correlation | |
| 610 | 1 | |a infrared thermography | |
| 610 | 1 | |a крупнозернистые структуры | |
| 610 | 1 | |a ультрамелкозернистые сплавы | |
| 610 | 1 | |a пластические деформации | |
| 610 | 1 | |a микроструктуры | |
| 610 | 1 | |a корреляции | |
| 610 | 1 | |a инфракрасная термография | |
| 701 | 1 | |a Sharkeev |b Yu. P. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1950- |g Yury Petrovich |3 (RuTPU)RU\TPU\pers\32228 |9 16228 | |
| 701 | 1 | |a Vavilov |b V. P. |c Specialist in the field of dosimetry and methodology of nondestructive testing (NDT) |c Doctor of technical sciences (DSc), Professor of Tomsk Polytechnic University (TPU) |f 1949- |g Vladimir Platonovich |3 (RuTPU)RU\TPU\pers\32161 |9 16163 | |
| 701 | 1 | |a Skripnyak |b V. A. |c Chemical Engineer |c leading researcher of Tomsk Polytechnic University |f 1956- |g Vladimir Albertovich |3 (RuTPU)RU\TPU\pers\34633 | |
| 701 | 1 | |a Legostaeva |b E. V. |c физик |c инженер Томского политехнического университета |g Elena Viktorovna |3 (RuTPU)RU\TPU\pers\32421 | |
| 701 | 1 | |a Eroshenko |b A. Yu. |g Anna Yurjevna | |
| 701 | 1 | |a Belyavskaya |b O. A. |g Olga Andreevna | |
| 701 | 1 | |a Ustinov |b A. |g Artem | |
| 701 | 1 | |a Klopotov |b A. A. |g Anatoly Anatoljevich | |
| 701 | 1 | |a Chulkov |b A. O. |c specialist in the field of non-destructive testing |c Deputy Director for Scientific and Educational Activities; acting manager; Senior Researcher, Tomsk Polytechnic University, Candidate of Technical Sciences |f 1989- |g Arseniy Olegovich |3 (RuTPU)RU\TPU\pers\32220 |9 16220 | |
| 701 | 1 | |a Kozulin |b A. A. | |
| 701 | 1 | |a Skripnyak |b V. V. |g Vladimir Vladimirovich | |
| 701 | 1 | |a Zhilyakov |b A. Yu. | |
| 701 | 1 | |a Kuznetsov |b V. P. | |
| 701 | 1 | |a Kuimova |b M. V. |c linguist |c Head of the Department of Tomsk Polytechnic University, Candidate of pedagogical sciences |f 1976- |g Marina Valerievna |3 (RuTPU)RU\TPU\pers\32753 |9 16631 | |
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