Results 111 to 120 of about 22,976 (269)
steel research international, EarlyView.The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley +1 more source
Pool oscillations and cast variations - penetration control for orbital tig welding of austenitic stainless steel tubing. [PDF]
, 1997 Pool oscillations in tungsten inert gas welding pools have been used in a closed- loop control system for orbital welding of ultra high purity tubing, determining a target level of penetration by altering the welding current in real-time.
Woodward, Neil J.
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Heat sources of hybrid laser-arc welding processes
, 2022 S.47-84In this chapter, the different types of heat sources commonly used in hybrid laser-arc welding are discussed. First, the most important characteristics of laser beams and the available high-power laser types for welding purposes are presented ...
Beyer, E., Mahrle, A.
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Zeitschrift für anorganische und allgemeine Chemie, EarlyView.The unique double monocapped trigonal cupola coordination polyhedra of Te(2) atoms inside the crystal structure of Ca9N4Te3. Green, moisture‐sensitive Ca9N4Te3 was obtained from Ca/Na flux at 1173 K as a by‐product of reddish‐brown Ca6N2Te3 and crystallizes in the trigonal space group R3¯$\overline{3}$ (No. 148, Z = 3).
Guowei Sun, Rainer Niewa
wiley +1 more source
Limiting travel speed in additive layer manufacturing [PDF]
, 2013 Wire and Arc Additive Manufacture (WAAM) is new approache to modern manufacturing. This technology has been gaining the interest of the research community due to its high deposition rate and efficiency. In Wire and Arc Additive Manufacture an increase in
Adebayo, Adeyinka +2 more
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Zeitschrift für anorganische und allgemeine Chemie, EarlyView.The reaction of the tetrahedral [Pb4]4− with Mo(CO)4(tmeda) yields two different Mo(CO)3‐functionalized clusters which can both be related to known clusters by the same substitution pattern following the isolobal principle. The crystal structures of [Na([2.2.2]crypt)]2Na2[(η4‐Pb4)Mo(CO)3] · 8.7NH3 and Na6[Pb4{Mo(CO)3}3] · 22NH3 are reported.
Michael Witzmann, Nikolaus Korber
wiley +1 more source
, 2013 As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on the gas tungsten arc and gas metal arc welding processes, a comparison between arc pressures produced using argon, helium, alternating gases and GTAW-P ...
Campbell, Stuart +2 more
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Tandem gas metal arc pipeline welding [PDF]
, 2007 Energy consumption has grown by 2% per year worldwide over the past ten years. In 2005 worldwide 900,000 barrels of oil and 7.6 billion cubic metre of natural gas were produced daily.
Liratzis, Theocharis
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Comparative study of electrogas and shielded metal arc welding processes on steel A537 welded joints
Materials Research ExpressIn this research, the electro-gas welding process was compared with a shielded metal arc welding process for welding steel A573 from a mechanical properties point of view.
Mahmoud Abbas +3 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang +5 more
wiley +1 more source