This paper presents three test methods for conformity assessment of technical fluids, all included in international, European and Romanian standards and their relevance for work security and health.

The paper underlines the importance of monitoring the quality of the underground waters and presents the experimental results as regards the pollution of underground waters in a certain part of Galati district. The final ...

In this article, ultrasonic method of transmitting forced vibrations to solidifying aluminum-alloy melts is presented. In the presence of well developed cavitation situations, a fine and homogeneous microstructure has ...

Stainless austenitic steels have a good corrosion resistance but reduced abrasion strength due to low strength below 200HV5. By nitriding one may ensure the obtaining of a superficial layer with increased strength that ...

This paper-work shows the results of the laboratory researches of the postdeformation maintaining time influence on the physical-mechanical characteristics of the flat microalloyed steels, at high temperature thermomechanical ...

In the steel making process, the continuous casting of molten steel is a very important step which involves hi-tech facilities. The flow control is a very important issue that influences the quality of the final products. ...

The plastic deformation behavior is defined by the function of the deformation strength according to the strain, strain rate and temperature as the factor of the deformation process. The behavior law establishes by the ...

The In this paper the influence of non-conventional heat and thermo chemical treatments upon the structure of tool steels and implicitly, upon the performances that are derived from applying such treatments, is presented. ...

The X-ray diffraction researches allowed the identification of the phases present in the structure of steels 40Cr10 and OLC 55, treated thermally and thermal-chemically in electrolytic plasma and the calculation of ...

The goal of this paper is to test the effect of odification process of liquid steel with 4-7% silicon content, in the course of pouring out from steel-smelting furnace into ladlet, on macrostructure. The research settled ...