The main objective of this experimenal reserch is to investigate new possibilities for reducing the graphite degeneration phenomenon in the superficial layer of iron castings. For the experiment, a spheroidal graphite ...

The article considers the influence of the additive in the lubricating oils Cermet, on tribological properties of a friction pair «cast iron – chrome», which is typical for the cylinder-piston unit of engines. It is shown ...

Bridges and viaducts represent vital engineering structures which are component of terrestrial communication lines, therefore reducing their exposure to factor originating from natural or anthropogenic hazards has no ...

This study presents a possibility to predict the connection between the cooling regime and the properties of steel. An important factor to enhance the properties of steel is the speed of the cooling regime. To be in ...

In the recent years the iron base sintered bearings production was considerable increased at the expense of the copper based ones, due to the low cost and availability of the iron powders as well as the higher strength. ...

the description of the kinematics of mechanisms driven by hydraulic cylinders, hydraulic agent is usually considered incompressible. This computing hypothesis introduces errors which, in certain situations, can not be ...

The paper presents aspects connected to the comportment of the vehicle on wheels which moves on dislevement soil. A complete dynamic model is realized for a vehicle on wheels with tyres, which wheels are rigidly tied to ...

The method of autocatalytic reduction coating assures a precise reproduction of the coated surface. This is an advantage when the support surface has a complex geometry but also becomes a disadvantage because it requires ...

Two types of steel grades were subjected to a nitriding thermo-chemical treatment after the thermo-magnetic treatments. The structural aspects of the superficial layers of these steels are studied after the friction process ...