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Photometric Analysis of Structure–Strength Properties Relationships
Pleiades Publishing Ltd - Tập 2021 - Trang 1081-1084 - 2021
The modern technologies of mechanical and heat treatment of metals and alloys are based on understanding of organic relationship between the physicomechanical properties of materials and their structural state. It is difficult to express the mechanical properties of materials in the form of contribution of individual structural constituents due to complexity of simultaneous evaluation of all param......
Aluminum-matrix composite materials with shungite rock fillers
Pleiades Publishing Ltd - Tập 2010 - Trang 1063-1071 - 2011
A method is proposed for the introduction of shungite rocks into aluminum melts by mechanical mixing with carriers, namely, aluminum granules and reactive titanium powders taking part in exothermic in situ reactions. The structures of composite materials with shungite rock additions are studied, and a stabilizing effect of these additions on dry sliding friction is revealed.
Deformation Characteristics of the Aerobraking Shell Material
Pleiades Publishing Ltd - Tập 2019 - Trang 1363-1368 - 2020
The deformation characteristics of silica fabric with a thermal barrier coating, which is used for the production of the ballute-type aerobrake of a descent module, are estimated. A rubberized fabric strip is subjected to uniaxial tensile tests to failure. Various finite-element simulation approaches to the deformation of the fabric are considered.
Possible mechanisms for the nucleation of primary fracture zones during deformation-induced phase transformations in solids: II. The role of phase transitions between the states of aggregation
Pleiades Publishing Ltd - Tập 2007 - Trang 529-533 - 2007
The conditions of local phase transitions between the states of aggregation that occur in a solid phase during deformation are analyzed. A hypothesis is proposed that these transitions can play a key role in the nucleation of primary fracture zones in solids. The validities of this hypothesis and the traditional models used to describe the fracture processes in solids are compared using the availa......
Use of a physical approach and artificial neural networks for the simulation of the relation between the yield strength of quenched Al-Si alloys and their structural characteristics
Pleiades Publishing Ltd - Tập 2007 - Trang 524-528 - 2007
Models are developed to relate the yield strength of Al-Si alloys to their structural characteristics. The models are based on the physical theory of strength and artificial neural networks. The simulated and experimental yield strengths agree well. It is wise to use an artificial neural network to predict the properties of alloys whose structural parameters fall in the range of the learning sampl......
Deformation and fracture of a composite material based on a high-strength maraging steel covered with a melt-quenched Co69Fe4Cr4Si12B11 alloy layer
Pleiades Publishing Ltd - Tập 2011 - Trang 337-344 - 2011
Multifractal analysis is used to study the deformation and fracture of a promising composite material consisting of a wire base made of K17N9M14 maraging steel covered with a surface layer made from a Co69Fe4Cr4Si12B11 amorphous alloy. As compared to its components, this material has a substantially better set of the mechanical properties.
Statistical Study and Prediction of the Mechanical Properties of Deformed Titanium Alloy Semifinished Products
Pleiades Publishing Ltd - - 2024
The mechanical properties of deformed semifinished products made of titanium alloys manufactured at different enterprises in the period from the 1970s to the present time are studied. The statistical dependences of the standard mechanical properties on the chemical composition, structure, annealing conditions, and test temperature are revealed from the generalization of the published data and resu......
One-zone rolling of composite materials
Pleiades Publishing Ltd - Tập 2016 - Trang 1303-1307 - 2017
The energy–force parameters of free rolling of a strip without its tension and rolling with one backward or forward creep zone in the deformation zone are compared. The limiting backward or forward tensions are determined, and the change in the linear sizes of a composite billet during deformation in a rolling mill is considered.
Indentation Determination of the Fracture Toughness of Steels at Various Temperatures
Pleiades Publishing Ltd - Tập 2020 - Trang 813-816 - 2020
The state of the art in the field of estimating the fracture toughness of ductile steels using the parameters of indentation by a spherical indenter is considered. Relations to calculate the specific indentation energy of a sphere using the diameter of a recovered impression are received. A method is developed to estimate the critical stress intensity factor for the plane strain state of pipeline ......
Tuổi thọ mỏi của mẫu cấu trúc giống như tấm thân máy bay với vỏ nhôm–nhựa thủy tinh gia cường Dịch bởi AI
Pleiades Publishing Ltd - Tập 2021 - Trang 400-405 - 2021
Các thử nghiệm so sánh được thực hiện trong quá trình kéo liên tục các mẫu tấm thân máy bay có cấu trúc tương tự với vỏ nhôm–nhựa thủy tinh gia cường (GRP) SIAL-3-1R và vỏ làm từ tấm hợp kim nhôm 1163, đồng thời xác định tuổi thọ mỏi của chúng cho đến khi xuất hiện rạn nứt và hoàn toàn hỏng hóc. Các phương pháp theo dõi công cụ về độ toàn vẹn của cấu trúc có đăng ký các rạn nứt dài tới 5 mm và sự ......
#tuổi thọ mỏi #tấm thân máy bay #vỏ nhôm #nhựa thủy tinh gia cường #vật liệu lớp
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