The clinical and metallurigical characteristics of five cast cobalt-chromium-molybdenum alloy femoral hip prostheses which failed in vivo were evaluated. The devices included: two of the Howmedica Muller-Charnley design, two of the Howmedica Charnley design, and one of the Zimmer Aufranc-Turner design. Fractographic analyses demonstrated that the five devices had failed by fatigue which origina...

B. Gajdzik, The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland E. Michlowicz, B. Zwolińska, P. Kisiel, AGH University of Science and Technology, Cracow, Poland The publication pr esents fl ows of metallur gical waste in manufac turing metallurgical enterprise. On the basis of analysis the struc ture of wast e fl ows and the wa y of wast e manage...

The pollution emitted into the air from mining-metallurgical complex negatively affects the environment. Plants have the ability to accumulate pollutants in their tissues. The concentration of heavy metals Ni, Zn, Mn and Cu, as well as sulphur, were determined in the edible parts of fruits. The fruits of apple, pear, peach and apricot trees were sampled in rural areas in the vicinity of the ind...

Abstract—This study presents an inverse analysis for predicting the thermal conductivities and the heat flux of a high-temperature metallurgical reactor simultaneously. Once these thermal parameters are predicted, the time-varying thickness of the protective phasechange bank that covers the inside surface of the brick walls of a metallurgical reactor can be calculated. The enthalpy method is us...

A comparative study to investigate the influences of single component fluxes on depth-to-width ratio (DWR) oxygen free copper was carried out with novel variants tungsten inert gas (TIG) welding namely Activated TIG (A-TIG), Flux Bounded (FB-TIG) and Zoned processes. The experiments identify delivering higher DWRs in A-TIG among thirteen distinct were followed by trials FB-TIG FZ-TIG employing ...

L. I. Cioca, Faculty of Engineering, “Lucian Blaga” University of Sibiu, Romania, L. Ivascu, Faculty of Management in Production and Transportation, Politehnica University of Timisoara, Romania The paper presents the trends in the evolution of occupational diseases in Romania in comparison to the EU and the US, as incidence of occupational diseases, their interrelationship with the exposure to ...

Colmonoy 6 alloy has been regarded as an efficient overlay material for various grades of substrate materials. The PTAW process emerged a very useful to deposit such materials effectively. Torch oscillation may become parameter achieve desired microstructure due its significant advantage over liner torch movement faster cooling the weld pool. Proposed work aims analyse influence on surface SS30...

It is well-known that some metals/alloys are sensitizing on skin contact, but it is not so well appreciated that sensitization is dependent on the reaction of the metal/alloy with sweat. The first step in skin sensitization by metals/alloys is a corrosion process and the formation of soluble metal ions. The nature of this process has implications with respect to occurrence of metal contact derm...