Fundamental studies of microstructural changes and high temperature deformation of titanium aluminide ... High temperature deformation characteristics of TiAl were strongly affected by Al content. ... On Ti-49Al and Ti-51Al, dynamic recrystallization occurred during high temperature deformation, and the
Term Paper High temperature deformation of Ni-base superalloys 1. ... High-Temperature Creep The enhanced diffusivity associated with deformation at extremely hightemperatures ... Therefore, they are an exceptional class of structural materials for high-temperature applications.
The high temperature deformation behavior of Ni3Al and Ni3(Al,Mo) single crystals that were oriented ... peak temperature. ... In the relatively high strain rate region, the strain rate dependence of the flow stress is small, and
In order to clarify the effect of C/Ti atom ratios(χ) on the deformation behavior of TiCχ at hightemperature ... It was found that the high temperature deformation behavior observedis the χ-less dependent type, including ... The deformation in this temperature region is thought to be governed bythe Peierls mechanism.
Mechanical properties of the HEAs at hightemperature. ... So, they have enhanced mechanical properties in high or low temperatures. ... Although other metals have excellent toughness, they are not hard and deformed easily.
Unlike solid bodies, they are called supercritical fluids (SCF) because they are easy to deform and have ... To list briefly SCF’s properties which is different from those of gas and liquid Unlike solids, deformation ... In addition, heat conductivity is as high as water because of rapid diffusion.
temperature and high pressure called the supercritical point, the evaporation process does not occur, ... liquid SCF differs from gas and liquid in that it has the characteristics of a fluid that is easily deformable ... In addition, due to rapid diffusion, thermal conductivity is as high as water.
Fluids can osity decreases with increasing temperature. ... deformation due to shear stress. ... In turbulent flow, momentum diffusion is low, momentum convection is high, and pressure and velocity
Solids have resistance to deformation when subjected to shear stress, while fluids have infinite deformation ... The flow of fluid with high momentum diffusion, low momentum convection, and unrelated pressure and speed ... decreases as the temperature increases.
In this experiment, supercritical carbon dioxide, which is utilized as a high density solvent and used ... is called a supercritical state, which is called a supercritical fluid (SCF) because it is easy to deform ... It also depends on the temperature.
. ∴ 항공기 날개 제작의 핵심 요소는 high stiffness & strength 등 날개에 가해지는 여러 내·외력에 의탱할 수 있는 stiffness, strength, toughness를 ... 리브와 파일런의 경우도 deformation process를 진행하도록 한다. ... resistance, heat resistance는 높기 때문에 날개 표면의 구조물에 사용할 재료로 적합하다. 2) Mechanical properties T : at room temperature
necrosis Look for Post-splint vascular compromise : change in distal pulse, excessive pain fracture deformity ... site distance from explosion, primary vs secondary blast injury Environment..source of contamination, temperature ... decrease in compartment size(compressive dressing) ; thigh, lower leg, forearm, gluteal, foot, hand High
This enabled us to calculate necessary dimensional corrections, minimizing thermal deformation. ... examined dimensional changes in processing carbon fiber composites using a cost-competitive domestic high-speed ... due to temperature fluctuations during processing.
최초변형점 (Initial DeformationTemperature, IDT) : 원추형 시편의 꼭지점이 변형되어 둥글게 될 때의 온도 2. ... 반구점 (Hemispherical Temperature, HT) : 폭이 높이이 두배가 되는 온도 4. ... high 성분에 따른 분류 용도에 따른 분류 - 발전소용 : 금속석탄 (Metallurgical Coking Coal) - 철강소용 석탄 : 연료탄 (Thermal Steam Coal
For all the annealed materials, the fraction of high angle grain boundaries was lower than that of low ... The specimens annealed up to 250 °C showed a typical deformation structure where the grains are elongated ... The as-rolled material exhibited a relatively high tensile strength of 282 MPa and elongation of 18 %
at hightemperature. ... at relatively hightemperatures and at various constant stresses, and therefore it must be predicted ... ×10 super(16), m=-3.467 4) It seems clear that the strain could be quantitatively dependent on the high
temperature and high pressure, the expansion ratio should be taken into account other than under the ... low temperature and low pressure. ... tried to find out the ideal expansion ratio through analyzing the elasto-plastic stress behavior of deformation
strength and high conductivity. ... Especially, the drawing process was done by severe deformation of a rod with an initial diameter of 12 ... 0.2wt%Cu-0.02wt%B alloy was designed to fabricate an aluminum alloy for electrical wire having both high