Nano- and Microparticles in Welding Aerosol: Granulometric Analysis

Health risk assessment of cadmium, chromium and nickel from car paint dust from used automobiles at auto-panel workshops in Nigeria

“…For nickel every value tended to zero because its cancer slope factor is zero. Apart from heavy metals (Cd, Cr and Ni) contained in the paint, paint aerosols can be hazardous posing similar effect as microscopic welding particles which can extremely compromise human health [67]. The findings here correlates with other literature [68,69] that despite advantages automobile transportation offers to the populace, it surely has negative public health impact.…”

Mechanical-strength characteristics of concrete made with stainless steel industry wastes as binders

“…From each of these samples approximately 50 kg were taken, always preserved in closed containers to prevent the action of moisture. Then, g of both samples were taken to proceed to perform a granulometric study [22]. Figure 3 shows the results obtained where the amount of material that does not cross the corresponding sieve are collected.…”

How Dynamic Properties of Inverters Influence Electrode Metal Transfer to the Weld Pool, and Change Structural and Phase Composition of Welded Joints Produced via High Alloyed Electrodes

“…It is of burning importance to further enhance accuracy in methods which assess the impact of dynamic properties of power supply equipment with various forms of energy conversion on a consumable electrode welding stability and quality. Literature review [1][2][3][4][5][6][7][8][9][10][11] confirms that objectives, aimed at improving critical (in terms of extreme work and low temperatures) metal structures reliability, demand innovative approaches, i.e. :…”

“…The first method, in case of a shielded manual arc welding, cannot be used in production quantities, as soon as it is rather difficult to introduce nano powder components into a weld pool [5][6][7][8]. Also, it is necessary to take into account a negative impact nano powders produce on welders [9][10][11][12][13], which is a constraining factor to the wide use of these components in welding. This also causes difficulties when registering them in an authorized catalogues of welding materials of such important oil and gas companies as ExxonMobil (USA), Sinopec (China), Royal Dutch Shell (Netherlands), and Gazprom (Russia).…”