A5091444532- Material Properties and Applications
- Engineering Diagnostics and Reliability
- Metal and Thin Film Mechanics
- Material Properties and Failure Mechanisms
- Surface Treatment and Coatings
- Additive Manufacturing Materials and Processes
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- thermodynamics and calorimetric analyses
- Nuclear Physics and Applications
- Engineering and Environmental Studies
- Engineering Technology and Methodologies
- Food Industry and Aquatic Biology
- Metallurgical Processes and Thermodynamics
- Clostridium difficile and Clostridium perfringens research
- Aluminum Alloys Composites Properties
- Gut microbiota and health
- Metal Forming Simulation Techniques
- Microbial bioremediation and biosurfactants
- Algal biology and biofuel production
- X-ray Diffraction in Crystallography
- High Entropy Alloys Studies
- Quasicrystal Structures and Properties
- Antibiotic Resistance in Bacteria
- Biopolymer Synthesis and Applications
Samara State Technical University
1997-2024
Karolinska Institutet
1997-2004
Based on the analysis of structures surface layers castings made aluminum alloys Al–Si, Al–Si–Cu, Al–Cu systems, it is found that their phase composition main feature heredity in production process by die casting with subsequent application ion-plasma coatings them. It shown ensuring a single-phase state or grinding second phases improves quality
Abstract Summary: We have elaborated several approaches for the preparation of magneto‐active nano‐hybrid composites, including i) ex situ method, which consists precipitation magnetic particles from Fe(II) and Fe(III) salts followed by their incorporation into humic acids matrix ii) a chemical method in where are grown within matrix. It was proven that adsorption on particle surface leads to an enhanced electrostatic steric stabilization particles, due absorbed layer highly charged...
Adult conventional rats were starved for 48 h with or without haemorrhage at 24 h, and translocation of caecal coliforms to mesenteric lymph nodes (MLNs) was measured. Translocation detected in three 11 haemorrhage, 6 sham-operated 12 22 after haemorrhage. In contrast, only one 13 non-instrumented fed control showed translocation. associated more adhering epithelium rats. Coliform isolates from caecum, MLNs characterised grouped into different biochemical phenotypes (BPTs) by a...
The features of the effect heat treatment on structure, properties and warping long-length aircraft products, which made 95Kh18-Sh 30KhGSN2А-VD steels are studied. Options for conditions its implementation proposed, that provide required property values an acceptable level warping.
Introduction. High-strength aluminum-based alloys of the Al-Zn-Mg-Cu alloying system are commonly used in aircraft manufacturing. However, there is a need to address issue achieving desired level mechanical properties large-scale parts made from these during heat treatment. Additionally, studies on evaluation corrosion resistance treatment also essential. The aim this work was determine modes achieve necessary values and cracking large-sized deformed blanks system. Materials Methods....
The effect of heat treatment modes on the mechanical properties 40KhN2MA steel is studied. results formation during quenching in oil with varying tempering temperature, cold treatment, two-medium (water, oil), water-polymer are presented. possibility for using parts railway transport draft gears analyzed. A mode established to ensure required level (in particular, 40...47 HRC hardness) and defect-free parts, which involves from a temperature 850...870 °C at 300 °C.
The cases of premature failure the barrel liquid damper, made complex alloyed high-strength 30HGSN2A steel, are analyzed. options and causes their occurrence established. Fatigue barrels during an operation is due to chrome coating rod appearance scorings on surface barrel. Cases official tests associated with reduced hardenability increased tendency decarburize steel in bottom barrel, nitrogen content here (due segregation). influence treatment conditions structure properties investigated....
Temperature patterns and molten pool forming peculiarities test in
In work various variants of thermal hardening deformable alloys aluminium with the purpose reception high-quality ionic-plasma decorative coverings color scale were investigated. Ion plasma from nitride titan put on products systems Al-Cu-Mg, Al-Mg, received by cutting and processing pressure. Implemented schemes podstuzhivaniya deformation patterns. On basis lead researches it is established parameters providing best quality coverings. Quality estimated thickness a covering, its porosity,...
The mode of the annealing forgings made steels R6M5 and R6M5K5, which are implemented directly in two-chamber kiln at site forging is proposed first developed.
The paper deals with the problem related to quality of ion-plasma coatings applied casting aluminum alloys. reasons low on alloys containing silicon are analyzed. It has been detected that forced cooling at crystallization phase and after it as well choice mode heat treatment make possible achieve appropriate level coating quality.
Introduction. The work focuses on solving quality problems of castings made Al-Si-Mg alloy (AK9). paper draws attention to the absence a unified theory modification and need find solutions that ensure good product quality. reasons for bad due weak justification choice manufacturer initial charge material — ingots are considered. Ingots from two suppliers compared in terms structural-phase state. shows how it causes defects castings. inefficiency traditional methods suppressing formation...