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More Metallurgical Engineering Questions
Identify the correct combination of the following statements. P. Hydrogen electrode is a standard used to measure redox potentials. Q. Activation polarization refers to electrochemical process controlled by reaction sequence at metal-solution interface. R. Potential-pH diagrams can be used to predict corrosion rates of metals. S. Cathodic protection can use sacrificial anodes such as magnesium.
The defects that are not observed in extruded products are P. Chevron cracking Q. Fold R. Piping S. Surface cracking T. Alligatoring
During metal casting of a slab, the thickness of solid formed after time 't' is proportional to
The refractory brick which has good thermal shock resistance at high temnperature but cracks on cooling below 400°C is
The passive film in stainless steel forms above the