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The infrared thermography technique developed in the present study was successfully applied to determine the scale thicknesses in the steel pipe. By finite element method we have calculated the infected pipe surface temperature. We have developed a model for estimation the thickness scale on the inner surfaces pipe. Pipe dimensions and scale layer are taken as geometrical parameter. We have studied...
A finite element model for analyzing the strain-stress field of laser cladding process was built and the process with powder feeding was analyzed with the model. Temperature variation during cladding described in Part I was applied as “body force” loads in the strain-stress analysis. The analysis result shows that, by the end of cladding, the clad layer is in tension stress and the stress values are...
Laser cladding consists of covering a substrate surface with a coating of a different nature. As a complex thermal-mechanical process, laser cladding is not quite understood yet. In this study, a finite element model for analyzing the temperature field was built and the laser cladding process with powder feeding was analyzed with the model. The analysis results show that the maximum temperature at...
Based on the laboratory experiments, the drawing galling behavior in macro-scale is investigated in the square cup drawing of a high tensile strength steel SPFC590 in semi-dry condition. When using the non-coated dies (cold alloy tool steel (SKD11, SLD) and austempered ductile irons (ADI)) in semi-dry, the macro-scale galling can clearly observed on die and drawn cup surface after a few drawing cycles...
A simultaneous quench has been one of challenging issues in a development of a superconducting fault current limiter (SFCL) as long as series-connected superconducting materials are not identical each other. This paper deals with a parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors (CC), as a preliminary step to develop its faculties for high...
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