Wyniki wyszukiwania:

High temperature oxidation & hot corrosion causes degradation of materials in power plant boilers and gas turbines .To obviate this problem oxidation & hot corrosion behaviour of Boiler Steel SA-192 and Cobalt based superalloy of coated & uncoated has been studied in air & Na2SO4+60%V2O5 at 850C & 950C. For determining the effect of LVOF spray method we have coated both specimen .Coating has been done by LVOF of Al2O3+40%TiO2 .At both temperature superalloy go through cyclic oxidation which consist of 1 hrs heating in Kanthol wire tube furnace followed by 20 minutes cooling in ambient air....

Creep is the tendency of solid materials to undergo permanent gradual deformation under the influence of stresses. It occurs as a result of long term exposure of material to stress levels that are below its yield strength. Creep is more severe in materials that are exposed to elevated temperature (i.e. near melting point) for long time. Functionally graded materials (FGMs) are a new generation of engineering materials, in which the constituents or their contents vary with respect to position coordinates, which enable them to offer unique performance. The concept of FGM has been proposed with...