Multiscale Translation-Rotation Plastic Flow in Polycrystals

Panin, V. E.; Егорушкин, В. Е.; Елсукова, Т. Ф.; Surikova, N. S.; Pochivalov, Yurii; Panin, A. V.

doi:10.1007/978-981-10-6855-3_77-1

Cited by 13 publications

(12 citation statements)

References 31 publications

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“…12a) accompanied by the formation of microporosity is a sign of ductile fracture [7,8]. The micropore formation is associated with the coalescence of vacant lattice sites under the conditions of plastic distortion at the lattice curvature interstices [9,10].…”

Section: Fracture Surface In Uniaxial Tension Of Austenitic Steel Spementioning

confidence: 99%

Influence of Lattice Curvature and Nanoscale Mesoscopic Structural States on the Wear Resistance and Fatigue Life of Austenitic Steel

Панин

Егорушкин

Surikova

2020

Springer Tracts in Mechanical Engineering

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The gauge dynamic theory of defects in a heterogeneous medium predicts the nonlinearity of plastic flow at low lattice curvatureand structural turbulence with the formation of individual dynamic rotations at high curvature of the deformed medium. The present work is devoted to the experimental verification of the theoretical predictions. Experimentally studied are the influence of high-temperature radial shear rolling and subsequent cold rolling on the internal structure of metastable Fe–Cr–Mn austenitic stainless steel, formation of nonequilibrium ε- and α′-martensite phases, appearance of dynamic rotations on fracture surfaces, fatigue life in alternating bending, and wear resistance of the material. Scratch testing reveals a strong increase in the damping effect in the formed hierarchical mesosubstructure. The latter is responsible for a nanocrystalline grain structure in the material, hcp ε martensite and bcc α′ martensite in grains, a vortical filamentary substructure on the fracture surface as well as for improved high-cycle fatigue and wear resistance of the material. This is related to a high concentration of nanoscale mesoscopic structural states, which arise in lattice curvature zones during high-temperature radial shear rolling combined with smooth-roll cold rolling. These effects are explained by the self-consistent mechanical behavior of hcp ε-martensite laths in fcc austenite grains and bcc α′-martensite laths that form during cold rolling of the steel subjected to high-temperature radial shear rolling.

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Section: Fracture Surface In Uniaxial Tension Of Austenitic Steel Spementioning

confidence: 99%

Influence of Lattice Curvature and Nanoscale Mesoscopic Structural States on the Wear Resistance and Fatigue Life of Austenitic Steel

Панин

Егорушкин

Surikova

2020

Springer Tracts in Mechanical Engineering

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“…A low local shear stability of the FISlayer might result in structural-phase transitions under loading and quasi-viscous flow of the material in-between the misoriented fragments; well-accommodated hierarchy of the gradient rotational modes of deformation developed as well [16]. This is manifested as satisfactory stress relaxation in the surface layer, low rate of wear particle formation and absence of severe surface layer damage.…”

Section: Introductionmentioning

confidence: 97%

Wear Resistance of Carbon Steels and Structure Parameters of Their Surface Layer After High Current Density Sliding

Fadin

Aleutdinova

2016

Russ Phys J

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Dry sliding of carbon steels under the action of an AC current of a contact density higher than 100 A/cm 2 is realized. It is shown that the contact layer is easily deteriorated in high-carbon steels. This becomes evident as lower wear resistance compared to that of low-carbon steels. There are signs of a developing liquid phase on the worn surface. Using the methods of Auger spectroscopy and X-ray diffraction analysis, it is demonstrated that a high content of carbon in the initial steel structure gives rise to formation of a large amount of γ-Fe (and)as well to a high concentration of carbon near the sliding surface.

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“…Секция 1. Современные задачи и новые приложения физической мезомеханики материалов с иерархической структурой DOI: 10.17223/9785946219242/13 ВЛИЯНИЕ ПОПЕРЕЧНО ВИНТОВОЙ ПРОКАТКИ НА УДАРНУЮ ВЯЗКОСТЬ КОНСТРУКЦИОННОГО ТИТАНОВОГО СПЛАВА TI-6AL-4V ПРИ НИЗКИХ ТЕМПЕРАТУРАХ 1,2 Панин В.Е., 1 Власов И.В., 1 Сурикова Н.С., 1,2 Панин С.В., 2 Яковлев А.В., 1 Мишин И.П.…”

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“…Промышленные технологии получения изделий из сплава Ti-6Al-4V хорошо разработаны, но пока не найдены эффективные пути решения проблемы низкой ударной вязкости. В ИФПМ СО РАН для низкоуглеродистых и низколегированных сталей снижение порога хладноломкости до T= -70°C достигнуто за счет поперечно-винтовой прокатки [1][2][3], в то время как исходном состоянии их порог хладноломкость составлял T= -30°C. В работе предложено использовать данный метод для обработки сплава Ti-6Al-4V с целью повышения ударной вязкости и снижения порога хладноломкости.…”

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VLIYaNIE POPEREChNO VINTOVOY PROKATKI NA UDARNUYu VYaZKOST'' KONSTRUKTsIONNOGO TITANOVOGO SPLAVA TI-6AL-4V PRI NIZKIKh TEMPERATURAKh

2020

Mezhdunarodnaya Konferentsiya "Fizicheskaya Mezomekhanika. Materialy S Mnogourovnevoy Ierarkhicheski Organizovannoy Strukturoy

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Multiscale Translation-Rotation Plastic Flow in Polycrystals

Cited by 13 publications

References 31 publications

Influence of Lattice Curvature and Nanoscale Mesoscopic Structural States on the Wear Resistance and Fatigue Life of Austenitic Steel

Influence of Lattice Curvature and Nanoscale Mesoscopic Structural States on the Wear Resistance and Fatigue Life of Austenitic Steel

Wear Resistance of Carbon Steels and Structure Parameters of Their Surface Layer After High Current Density Sliding

VLIYaNIE POPEREChNO VINTOVOY PROKATKI NA UDARNUYu VYaZKOST'' KONSTRUKTsIONNOGO TITANOVOGO SPLAVA TI-6AL-4V PRI NIZKIKh TEMPERATURAKh

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