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Metallurgical Engineering Metallurgical Testing And Inspection Difficulty: Medium

Match the defects given in Group I with the suitable non-destructive evaluation technique from Group II . Group I Group II P. Crack in a flat aluminium slab 1. Radiography Q. Sub-surface porosity in a bronze casting 2. Eddy current technique R. Surface cracks in a steel tool 3. Ultrasonic technique S. Internal porosity in a ceramic block 4. Magnetic particle technique

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More Metallurgical Engineering Questions

For a constant force, a rope breaks due to stress. Which of the following is useful to reduce the stress? An alloy of overall composition, X B = 0.7 was equilibrated at temperature T 1 . Microstructural analysis showed two phases, (α and β, and that the phase fraction of β was 0.75. Given that the equilibrium composition of β at Ti is 0.9 as shown in the phase diagram below, the maximum solubility of B in α (in mole fraction) at this temperature is . . . . . . . . For successful rolling, the condition required is Liquid steel (300 metric tons) initially containing 0.03 mass% sulfur, is desulphurised with calcium (1000kg) according to the reaction, Ca + [S] = Ca S. The slag (1 metric ton) lying on top of metal contains (in mass%) 50% CaO, 25% SiO 2 and the rest is Al 2 O 3 . Only 10 mass% of the CaO injected reacts with the sulfur and the rest escapes as gas into the atmosphere. What will be the final sulfur content, in mass% in liquid steel? If the friction is increased by two, then the reduction decreases by