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It is desired to produce an iron-carbon alloy that has a minimum hardness of 200 HB and a minimum ductility of 35%RA. Is such an alloy possible? If so, what will be its composition and microstructure (coarse and fine pearlites and spheroidite are alternatives)? If this is not possible, explain why.
Vitrification This is liquid phase sintering. It is achieved via incorporating a component that melts to viscous liquid during sintering. Such viscous liquid solidifies in gla
Martempering: The piece to be hardened is wholly austenitized and after that quenched in a lead of salt bath held at a temperature simply above at that martensite would begin
what are the practical applications and use of finding uniform distributed load, concentrated point load, inclined point load, roller supported beam.
Compute the intensity of normal stress: A uniform steel bar of 2 cm × 2 cm area of cross section is subjected to axial pull of 40000 kg. Compute the intensity of normal stres
Definition of screw conveyor Screw conveyors belong to the conveyer with traction component. It depends on the shaft with spiral blades in hematic chute to make material move o
Principle of superposition: Explain the principle of superposition. Sol.: A machine member is subjected to number of forces acting on its outer edges and also at some
Find the minimum weight to keep equilibrium: A belt supports the two weights W 1 an d W 2 over a pulley as shown in the figure given below. If W 1 = 1000N, fi
a) Determine a root of the equation x-cosx =0 using Bisection method correct to three decimal places. b) Determine smallest possible root of the equations x-e -x =0 using Regul
Heat Treatment and Surface Treatment Processes Heat treatment processes are employed to improve of a work piece. The category includes the processes. Annealing, Normalizing,
Stitch welding Here, a series of overlapping spot welds are made with the spot welding machine using the conventional electrode tip. Both water tight and gas tight joints can b
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