Fatigue and fracture behavior of ultrafine-grained near β titanium alloy produced by radial shear rolling and subsequent aging

Naydenkin, E. V.; Мишин, И. П.; Ratochka, I. V.; Oborin, Vladimir; Bannikov, Mikhail; Bilalov, Dmitry; Naydenkin, K.E.

doi:10.1016/j.msea.2021.140968

Cited by 20 publications

(8 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Another variation of shear rolling is the radial shear rolling scheme. It was shown in [11,12] that shear deformations contribute to the refinement of the structure of various alloys based on titanium and stainless steels. A common limitation of these technologies is that the deformation of materials takes place at high temperatures, which facilitates deformability, but leads to a decrease in the effectiveness of hardening due to the development of recrystallization.…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Forming of properties complex of copper wire by the method of combined deformation by torsion and tension

Pashynska¹,

Pashynskyi²,

Kraliuk³

et al. 2022

TAPR

View full text Add to dashboard Cite

The object of research is the mechanical properties of copper wire M1 for electrical applications, subjected to combined torsional deformation with tensile tension. One of the most problematic aspects in the manufacturing of such a wire is its fracture during processing due to low strength and ductility. DSTU EN 13602:2010 regulates the ultimate tensile strength, relative elongation, the number of bends before fracture and the number of twists until failure. To increase the service life of the product it is necessary to increase strength and plastic properties. The methods of influence on the material by combined plastic tensile deformation with tensile was used in the study, the mechanical characteristics (ultimate tensile strength, true deformation before failure, relative elongation, relative reduction in area) and electrical conductivity were determined. Statistical analysis tools were used for modeling and graphical displaying of data. The proposed approach allows to select the modes of combined torsional deformation with tensile, providing the optimal combination of tensile strength and relative narrowing of M1 grade copper wire. Under certain modes of such deformation, with increasing degree of deformation, it is possible to increase the strength characteristics and at the same time obtain high values of plasticity. The obtained results of approbation of different combined deformation modes allow to consider it an effective tool for achieving high values of true rapture stress and ultimate deformation in order to improve the service characteristics of the deformed wire. It is shown that relaxation processes occur during such treatment, which leads to a decrease in stresses and a sharp increase in plastic characteristics. Clarification of the mechanisms of the characteristics formation allows to control the features of the structure and, accordingly, the level of mechanical properties to obtain a wire that combines high strength with high toughness. This makes it possible to develop deformation modes to obtain copper wire with special properties depending on customer requirements, for example: strong wire with low electrical resistance.

show abstract

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Forming of properties complex of copper wire by the method of combined deformation by torsion and tension

Pashynska¹,

Pashynskyi²,

Kraliuk³

et al. 2022

TAPR

View full text Add to dashboard Cite

show abstract

“…The formation of a bulk UFG structure in Ti alloys by SPD processing increases their specific strength, fatigue resistance, technological plasticity, and deformation capacity at lower operating temperatures. [ 4–8 ] A combination of these various properties is relevant for structural materials used for making heavily loaded GTE parts such as compressor blades, where these components experience substantial alternating tensile loads during operation.…”

Section: Producing Ufg Structural States In Titanium Alloys By Spdmentioning

confidence: 99%

“…In the third area, special attention is paid to enhancing the performance properties of UFG Ti alloys, such as low‐cycle and high‐cycle fatigue resistance, impact toughness, crack resistance, long‐term strength, and corrosion resistance. [ 5–8,40–43,45–53 ] Several recent studies have shown that the UFG structure formation in metals and alloys often noticeably reduces both the impact toughness and fracture toughness. For example, such a tendency was observed in nanostructured pure metals, such as Ni, Fe, and Ti, and the effect was attributed to the reduced capacity of UFG metals for strain hardening.…”

Section: Producing Ufg Structural States In Titanium Alloys By Spdmentioning

confidence: 99%

See 1 more Smart Citation

Advanced Materials for Mechanical Engineering: Ultrafine‐Grained Alloys with Multilayer Coatings

et al. 2021

View full text Add to dashboard Cite

Research has demonstrated that the formation of a bulk ultrafine‐grained (UFG) structure in metals and alloys through severe plastic deformation (SPD) enables increasing of their strength properties and decreasing of the temperature range of superplasticity. Designers and process engineers generally show a great interest in such materials because the development of mechanical engineering industries places ever‐increasing demands on the performance properties of commercial alloys, especially for parts operating under extreme conditions. One of the approaches for a comprehensive enhancement of the performance characteristics of structural materials is a combination of a UFG structure in the bulk of a material, providing an increase in strength, and an additional surface modification providing resistance to erosion and corrosion damage. As a result, a set of material service properties can be enhanced, which is difficult to achieve through only metal nanostructuring or only surface modification. This approach has been demonstrated through an example of UFG titanium alloys produced by SPD, including those with nanostructured multilayer TiVN coatings of different “architectures.” Accordingly, herein, the trends, problems, and prospects of surface modification for the innovative application of structural UFG titanium alloys in advanced mechanical engineering are examined.

show abstract

“…Дополнительным видом упрочнения может быть модификация поверхности [2], изменение химического состава сплава [3] или деформационное воздействие [4]. В этой связи применение поперечно-винтовой прокатки (ПВП) позволяет проводить контролируемое, при необходимости многоступенчатое, деформационное упрочнение [5]. Нагрев титановых сплавов до температуры близкой к температуре полиморфного превращения обеспечивает высокую деформацию, без образования хрупких трещин, а последующая закалка «фиксирует» сформированную структуру.…”

Section: Doi: 1017223/978-5-907442-03-0-2021-081 изменение ударной вязкости титановых сплавов вт8 и вт14 после поперечно-винтовой прокаткunclassified

Изменение Ударной Вязкости Титановых Сплавов Вт8 И Вт14 После Поперечно-Винтовой Прокатки И Контролируемого Охлаждения

2021

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

View full text Add to dashboard Cite

Fatigue and fracture behavior of ultrafine-grained near β titanium alloy produced by radial shear rolling and subsequent aging

Cited by 20 publications

References 36 publications

Forming of properties complex of copper wire by the method of combined deformation by torsion and tension

Forming of properties complex of copper wire by the method of combined deformation by torsion and tension

Advanced Materials for Mechanical Engineering: Ultrafine‐Grained Alloys with Multilayer Coatings

Изменение Ударной Вязкости Титановых Сплавов Вт8 И Вт14 После Поперечно-Винтовой Прокатки И Контролируемого Охлаждения

Contact Info

Product

Resources

About