The influence of two different fluoride-based activator salts (NH4F and AlF3) was studied for diffusion aluminide coatings obtained via pack cementation on a Ni-based superalloy (René 108DS). resistance to oxidation hot corrosion assessed as function the concentration used during synthesis process by means cementation. Two concentrations were selected (respecting equimolarity fluoride in synthe...

Studies of the piles bearing capacity after strengthening soil by cement mortar pressure injection were carried out to determine pile foundations increasing patterns in a result soils cementation. Depending from volume and technological parameters, stress state around changes, additional pile-soil compression occurs friction along lateral surface increase, as well resistance under bottom end. C...