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Engineering MaterialsChoose the correct option: A solid phase results in a solid plus another solid phase on cooling during (i) Eutectoid reaction (ii) Eutectic reaction (iii) Peritectoid reaction (iv) Peritectic reaction20242mEngineering MaterialsChoose the correct option: On a two-component solid-liquid phase diagram, a tie line indicates the region where (i) temperature is constant (ii) only the solid phase exists (iii) composition is constant (iv) only the liquid phase exists20242mEngineering MaterialsChoose the correct option: Which factor most strongly governs whether a substitutional solid solution forms between metals A and B? (i) Large electronegativity difference between A and B (ii) Similar atomic radii and crystal structures with high mutual solubility (iii) Presence of small interstitial atoms like C or N (iv) High melting point of the solvent metal alone20252mEngineering MaterialsDescribe eutectic, peritectic, peritectoid and monotectic reactions, clearly stating the phase changes in each case.20257m
PreviousChoose the correct option: Which factor most strongly governs whether a substitutional solid solution forms between metals A and B? (i) Large electronegativity difference between A and B (ii) Similar atomic radii and crystal structures with high mutual solubility (iii) Presence of small interstitial atoms like C or N (iv) High melting point of the solvent metal aloneNextChoose the correct option: In the Fe-Fe_3C equilibrium diagram, ledeburite is: (i) A mixture of ferrite and austenite (ii) A single-phase austenitic structure (iii) Pure cementite (iv) A eutectic mixture of austenite and cementite
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