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Deformati.n Nano-Mechani.ms Occurri.g on the i.terface of Di.si.i.ar Materi.ls Joi.ed i. Soli. Phase by Means of Hi.h Temperature Rolli.g

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Open Journal of Metal 2014年第4期4卷 107-111页

作者： Bori. V. Borts Ni.olay i. Dani.enko Aleksander A. Parkhomenko viktor i. tkachenko i.i.a M. Korotkova i.or O. Vorobyov Aleksander T. Lopata Nati.nal Sci.nce Center Kharkov Institute of Physics & Technology The National Academy of Sciences of Ukraine (NASU) Kharkov Ukraine Frantsevi.h i.sti.ute for Problems of Materi.ls Sci.nce The National Academy of Sciences of Ukraine (NASU) Kyiv Ukraine

Nano-mechani.ms of crystal latti.e deformati.n on the i.terface of di.si.i.ar materi.ls (Cu-Nb), joi.ed by vacuum rolli.g i. soli. phase under hi.h temperature (950℃) were studi.d by means of hi.h resoluti.n electron mi.roscopy. i.put of carri.rs of rotati.n modes—nano-di.oles of parti.l di.cli.ati.ns and nano-twi.t di.cli.ati.ns i. the form of double spi.als i. deformati.n mechani.ms were analyzed. The role of these mechani.ms i. decrease of shear stabi.i.y of the i.terface areas and i. producti.n of hi.h-quali.y rolled metal i. di.cussed.

关键词： Vacuum Hot Rolli.g Soli. Phase i.terface Cupper-Ni.bi.m Mi.roscopy Di.cli.ati.ns

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A Frank-Read Source Model

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Open Journal of Metal 2020年第3期10卷 35-44页

作者： Bori. viktorovi.h Borts Stella Fedorovna Skoromnaya viktor i.anovi.h tkachenko NSC “Kharkov i.sti.ute of Physi.s and Technology” Kharkov Ukraine V.N. Karazi. Kharki. Nati.nal Uni.ersi.y Kharkov Ukraine

The temporal dynami.s of the edge di.locati.n (ED) was studi.d i. thi. work usi.g the i.homogeneous di.si.ati.e si.e-Gordon (SG) equati.n. The consi.erati.n was carri.d out for the force acti.n levels both less and more cri.i.al. By SG equati.n numeri.al calculati.ns i. i. shown that at the external force value below a cri.i.al one the ED takes a shape close to a semi.i.cle. Thi. shape was used as an i.i.i.l condi.i.n for descri.i.g the ED temporal dynami.s i. the FR source operati.g mode. A parti.ular soluti.n of the SG equati.n i. proposed that descri.es the temporal dynami.s of half the ED i. the FR mode, whi.h rests on a stopper at the ori.i.. i. i. shown that the proposed parti.ular soluti.n corresponds to the left Archi.edes spi.al di.placed at π/2 counterclockwi.e relati.e to the azi.uth angle equal to zero. i. i. noted that the temporal dynami.s of the second half of the ED segment rested on the second stopper i. descri.ed by the proposed parti.ular soluti.n, when i. i. mi.rored relati.e to the problem symmetry axi. and the center of the spi.al i. di.placed to a poi.t wi.h a zero azi.uthal angle and a radi.s equal to the di.tance between the stoppers. The axi. of symmetry i. a strai.ht li.e that i. perpendi.ular and halves the di.tance between the stoppers. A graphi.al descri.ti.n of the ED temporal dynami.s was plotted i. the Cartesi.n coordi.ate system based on the proposed parti.ular soluti.n and i.s mi.ror and di.placed i.age. i. i. shown that the parti.ular soluti.n of the SG equati.n i. the RF source operati.n mode i.volves two Archi.edes spi.als symmetri.al relati.e to the problem symmetry axi. wi.h equal radi. i.creasi.g li.early wi.h ti.e, whi.h rotate: one (the spi.al center coi.ci.es wi.h the stopper at the ori.i.) counterclockwi.e, the second (the spi.al center coi.ci.es wi.h the second stopper) clockwi.e.

关键词： Edge Di.locati.n Si.e-Gordon (SG) Equati.n Frank-Read Source Archi.edes Spi.al Temporal Dynami.s

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