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

Sharkeev, Yu. P.; Вавилов, В. П.; Skrypnyak, V.A.; Легостаева, Е. В.; Eroshenko, A. Yu.; Belyavskaya, O. A.; Ustinov, A. M.; Klopotov, A. A.; Чулков, А. О.; Козулин, А. А.; Zhilyakov, A. Yu.; Kouznetsov, V.P.; Kuimova, Marina Valeryevna

doi:10.1016/j.msea.2020.139203

Cited by 23 publications

(16 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Mechanical properties were ascertained using an Instron tension testing machine (Instron European Headquarters, High Wycombe, UK). An infrared thermal imaging FLIR SC 7700M system (FLIR Systems, Nashua, NH, USA) was used previously in [91] to measure the temperature field on the surface of the samples, as well as their sizes and shapes, including the formation of a "neck" during deformation. In the present work, this made it possible to obtain the true stress-true strain (σ true (ε true )) dependence, according to the following equations [91].…”

Section: Methodsmentioning

confidence: 99%

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

Sharkeev

Eroshenko

Легостаева

et al. 2022

Metals

View full text Add to dashboard Cite

For this paper, studies of the microstructure as well as the mechanical and biological properties of bioinert titanium, zirconium, and niobium alloys in their nanostructured (NS) and ultrafine-grained (UFG) states have been completed. The NS and UFG states were formed by a combined two-step method of severe plastic deformation (SPD), first with multidirectional forging (MDF) or pressing into a symmetrical channel (PSC) at a given temperature regime, and then subsequent multi-pass groove rolling (MPGR) at room temperature, with pre-recrystallization annealing. Annealing increased the plasticity of the alloys in the NS and UFG states without changing the grain size. The UFG structure, with an average size of structural elements of no more than 0.3 μm, was formed as a result of applying two-step SPD and annealing. This structure presented significant improvement in the mechanical characteristics of the alloys, in comparison with the alloys in the coarse-grained (CG) or small-grained (SG) states. At the same time, although the formation of the UFG structure leads to a significant increase in the yield strength and tensile strength of the alloys, their elastic modulus did not change. In terms of biocompatibility, the cultivation of MG-63 osteosarcoma cells on the polished and sandblasted substrates demonstrated high cell viability after 10 days and good cell adhesion to the surface.

show abstract

Section: Methodsmentioning

confidence: 99%

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

Sharkeev

Eroshenko

Легостаева

et al. 2022

Metals

View full text Add to dashboard Cite

show abstract

“…Легостаева Е.В., 1 Ерошенко А.Ю., 1,2 Лугинин Н.А., 1 Белявская О.А., 2,3 Вавилов В.П., 3 Скрипняк В.А., 2 Чулков А.О., 3 Козулин А.А., 3 Скрипняк В.В., 4 Schmidt J., 1,2 Шаркеев Ю.П. 1 Институт физики прочности и материаловедения СО РАН, Томск 2 Национальный исследовательский Томский политехнический университет, Томск 3 Национальный исследовательский Томский государственный университет, Томск 4 Innovent Technology Development, Jena…”

Section: Doi: 1017223/978-5-907442-03-0-2021-278 закономерности накопления и диссипации энергии в процессе пластической деформации в сплаunclassified

“…Измерительная тепловизионная система FLIR SC 7700M была использована для измерения температурного поля на поверхности образцов, их размеров и формы (образование шейки) в процессе деформирования, что позволило получить истинные деформационные кривые, а также оценить работу пластической деформации, удельное количество теплоты, рассеявшееся в процессе деформирования, и поглощенную энергию в процессе пластической деформации. Методика расчета перечисленных параметров подробно описана ранее в [2].…”

ЗАКОНОМЕРНОСТИ НАКОПЛЕНИЯ И ДИССИПАЦИИ ЭНЕРГИИ В ПРОЦЕССЕ ПЛАСТИЧЕСКОЙ ДЕФОРМАЦИИ В СПЛАВЕ Mg-Y-Nd

2021

Международная Конференция "Физическая Мезомеханика. Материалы С Многоуровневой Иерархически Организованной Структурой И Интелле

View full text Add to dashboard Cite

“…где μ 0 , k μ -постоянные материала. При моделировании деформации образцов сплава Zr-1 % Nb были использованы параметры материала: [11,12].…”

Section: вычислительная модельunclassified

Mechanical behavior of the Zr-1%Nb alloy at high strain rates and stress triaxiality from 0.33 to 0.5

Skripnyak

Chirkov

2020

Lett. Mater.

View full text Add to dashboard Cite

It is important to know the patterns of a damage nucleation and fracture of the Zr-1% Nb zirconium alloy at high strain rates and in the presence of stress concentrators for the design of new critical structures of nuclear reactors, fuel claddings and pressure pipes. In this research the influence of the strain rate in the range from 0.1 to 10 3 s −1 on the plastic deformation resistance and the fracture character of the Zr-1% Nb alloy under tension at room temperature and the stress triaxiality parameter 0.33 < η < 0.5 was studied. The tests were carried out using an Instron VHS 40/50-20 servo-hydraulic testing machine on flat specimens with a smooth and notched gage parts. Video recording of the process of sample tension was carried out by the Phantom V711 camera at speed of recording of 100 000 frames per second. Strain fields in gage zone of specimens at 10 2 and 10 3 s −1 obtained by the Digital Images Correlation method. It was shown that the dynamic fracture of the Zr-1% Nb alloy is the result of nucleation and growth of damage in localized shear bands. Using numerical modeling, the evolution of damage and fracture of samples under high-speed tension is analyzed. It is shown that strain localization bands begin to develop in the incision zone at lower macroscopic strains. The location of the plastic strain localization bands and their intersection in the separation zone determines the orientation of the cracks near the stress concentrator zone.

show abstract

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

Cited by 23 publications

References 58 publications

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

ЗАКОНОМЕРНОСТИ НАКОПЛЕНИЯ И ДИССИПАЦИИ ЭНЕРГИИ В ПРОЦЕССЕ ПЛАСТИЧЕСКОЙ ДЕФОРМАЦИИ В СПЛАВЕ Mg-Y-Nd

Mechanical behavior of the Zr-1%Nb alloy at high strain rates and stress triaxiality from 0.33 to 0.5

Contact Info

Product

Resources

About