Metallurgy and continuous galvanizing line processing of high-strength dual-phase steels microalloyed with Niobium and Vanadium

It is well-known that the automobile industry continues to search for stronger, more cost-effective steels to lowerthe mass of the vehicle for better fuel consumption and to provide better crash worthiness for safety. Thismovement to higher UTS strength requirements, from the 590-780 range to over 980 MPa, has led to morecomplex alloy design. In the processing of these steels on continuous, hot-dipped, galvanizing lines (CGL), twomajor changes in composition have been the addition of hardenability elements and microalloying. Forexample, very-high strength DP steels, containing high Mn, Cr and Mo along with Nb and V have shown UTSlevels in excess of 1100MPa. This paper will present recent research conducted on four experimental steelscontaining these additions. It will be shown that the choice of intercritical annealing temperature is importantwhen processing microalloyed DP steels, as are the rates of cooling throughout CGL processing. The physicalmetallurgy of producing ultra-high strength DP steels on CG lines will be presented and discussed

THE RUSSIAN DATA OF INTERNATIONAL ENDORSE REGISTER (EPIDEMIOLOGIC INTERNATIONAL DAY FOR THE EVALUATION OF PATIENTS AT RISK OF VENOUS THROMBOSIS IN ACUTE HOSPITAL CARE SETTING)

Aim. To estimate a risk factor frequency of venous thromboembolism (VTE) in patients urgently hospitalized in hospitals, and also to estimate of patients part having effective prevention of VTE.Material and methods. ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk of Venous Thrombosis in Acute Hospital Care Setting) is the international register. Patients of 40 years and older hospitalised in therapeutic departments as well as patients of 18 years and older hospitalised in surgical departments (358 hospitals in 32 countries) were included in the register. The case history analysis of all patients was performed for estimation of risk VTE and evaluation of preventive therapy quality according to American College of Chest Physicians (ACCP) Recommendation 2004.Results. Totally 68 183 patients (including 30 827 (45%) surgical patients and 37 356 (55%) therapeutic patients) were enrolled in Global ENDORSE Register. Russian centers enrolled 4 788 patients (including 2 829 (59%) surgical patients and 1 959 (41%) therapeutic patients). Totally 35 329 (51,8%) patients enrolled in Global ENDORSE Register (64,4% of surgical patients (19 842) and 41,5% of therapeutic patients (15 487)) had VTE risks. In Russia 2 188 enrolled patients (45,7%) had VTE risks (52% of surgical patients (1 470) and 36,7% of therapeutic patients (718). Totally 17 732 (50,2%) patients enrolled in Global Register ENDORSE and having VTE risks received VTE preventive therapy according to АССР Recommendations 2004. In Russia 521 (23,8%) patients enrolled in Global ENDORSE Register and having VTE risks received VTE preventive therapy according to АССР Recommendations 2004. It is more than 2 times less in comparison with world level (р<0.001).Conclusion. There are a lot of patients with VTE risks in hospitals. It is necessary to improve preventive therapy of VTE due to better hospital management and more active use of АССР Recommendations 2004