This set of Phase Transformation Interview Questions and Answers for Experienced people focuses on “Interphase Interfaces in Solids – 2”. 1. Fully coherent precipitate is also known as GP zone, GP stands for _______ a) Gaff and Pearl b) Gas and Pressure c) Gatsby and Prince d) Guinier and Preston 2. Ag-rich zones in an … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Interphase Interfaces in Solids – 1”. 1. HCP silicon-rich k phase and the FCC copper-rich α-matrix in Cu-Si alloys forms ___ a) A coherent interface b) An incoherent interface c) Mixed interface d) A semi coherent interface 2. Within the bulk of … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Kinetics of Grain Growth”. 1. In a single-phase metal the rate at which the mean grain diameter D’ increases with time will depend on the ____________ a) Flow rate b) Texture c) Grain boundary size d) Grain boundary mobility 2. The driving … Read more
This set of Phase Transformation Questions and Answers for Experienced people focuses on “Boundaries in Single Phase Solids – 2”. 1. When the two grains are related by a rotation about a <100> axis, it can be seen that most high-angle boundaries have _____ a) Almost same energy b) Different energy c) Highly ordered structure … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Boundaries in Single Phase Solids – 1”. 1. The lattices of any two grains can be made to coincide by ________ a) Twisting across the plane b) Twirling about multiple axis c) Turning in the direction of grain boundary d) Rotating one … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Solid and Vapour Interfaces”. 1. Which among the following plane has the least density of atoms? a) {110} b) {200} c) {220} d) {111} 2. If 1 mol of solid is vaporized 12Na broken bonds are formed. Therefore L (Latent heat of … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Interfacial Free Energy”. 1. The free energy of a system containing an interface of area 5mm2 and free energy 6 KJ/mol*mm2 per unit area is given by_______(G’= 10 KJ/mol, is the free energy of the system assuming that all material in the … Read more
This set of Phase Transformation Interview Questions and Answers for freshers focuses on “Diffusion in Multiphase Binary Systems”. 1. Which of the following is an example of Diffusion in multi-phase binary system? a) Alcohol in water b) Aldehyde in water c) Ketone in water d) Galvanized iron and hot-dipped tin plate 2. Non equilibrium diffusion … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Diffusion – High-Diffusivity Path”. 1. In general, at any temperature the magnitudes of Db and Ds relative to the diffusivity through defect-free lattice D1 are such that_________ (Db and Ds are grain boundary and surface diffusivity) a) Db>Ds>D1 b) Db<Ds<D1 c) Db>D1>Ds … Read more
This set of Phase Transformation Multiple Choice Questions & Answers (MCQs) focuses on “Diffusion in Ternary Alloys”. 1. The addition of a third diffusing species to a solid solution produces some effects. Fe-Si-C alloys are particularly instructive for some reasons. Which among the following is a reason for the above-mentioned statement? a) Carbon raises the … Read more
