300M, an ultra-high strength steel used in aeronautics for landing gears, is generally shot-peened and coated with High Velocity Oxygen Fuel sprayed WC-10Co-4Cr to improve tribological behavior. In literature, few treatment parameters have been tested analyze the surface integrity influence on fatigue properties. The self-heating method under cyclic loading quickly determine properties by coupl...

This paper develops the analytical framework to compare the approximate performance of periodic hypersonic cruise trajectories with previously proposed hypersonic trajectory pro-les for global reach. Speciically, range, V and payload carrying capacity are evaluated for various trajectory types to illustrate the enhanced performance achieved by ying periodic hypersonic cruise trajectories with e...

In this paper we start with Meyer-Ter-Vehn isobaric fusion model and try to reconstruct all equations by introducing a dimensionless variable ?i=ri/Rm. Then we investigate the proper sets of spark confinement parameter and temperature {Hs,Ts} which satisfy ignition conditions of spark ignition in deuterium-tritium (DT) equimolar mixture in terms of isentrope parameter, ?, implosion velocity, Ui...

The interactions between oxygen permeation and homogeneous fuel oxidation reactions on the sweep side of an ion transport membrane (ITM) are examined using a comprehensive model, which couples the dependency of the oxygen permeation rate on the membrane surface conditions and detailed chemistry and transport in the vicinity of the membrane. We assume that the membrane surface is not catalytic t...

The purpose of this research was to investigate the cause a slurry erosion failure in an Al2O3-13TiO2 high-velocity oxygen-fuel coating for SS316L steel. Sand particles served as erodent investigation wear and erosion. SS HVOF shown be significantly affected by speed particles, concentration (wt%), exposure period. All characteristics, excluding impingement angle, contribute faster on parent ma...