Grain boundary in polycrystalline materials are not defects line defects surface

Question

Grain boundary in polycrystalline materials are not defects line defects surface defects None of the above Screw dislocations move in response to shear stress applied Parallel to the dislocation line at 45 degree to the dislocation line at 60 degree to the dislocation line at 90 degree to the dislocation line Volume of FCC unit cell is (2r/squareroot 2)3 (4r/squareroot 2)3 (2r/squareroot 2)3 None of the above The equilibrium number of vacancies for a given quantity of material depends on and decreases with Activation energy Temperature Boltzmann's constant All of the above Which of the following is wrong about a phase diagram It gives information on transformation rates Relative amount of different phases can be found under given equilibrium conditions It indicates the temperature at which different phases start to melt Solid solubility limits are depicted by it Select the most appropriate choice (only one) from the following: BCC is more close packed

Explanation / Answer

c

grain boudaries in polycrystalline materials are 2D defects

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.