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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 MaterialsDescribe eutectic, peritectic, peritectoid and monotectic reactions, clearly stating the phase changes in each case.20257mEngineering MaterialsSketch and label a typical isothermal transformation (TTT) diagram for eutectoid steel.20257mEngineering MaterialsChoose 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 cementite20252m
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