Questions are in the pictures. a) Cross slip and climb are important phenomena which goverm work hardening but also recoveryand recrystallisation processes in metals. Discuss (be brief and to the point).(8)b) The Figure below shows a micrograph of Al showing slip lines and grain boundaries after beingsubjected to plastic deformation. Answer the following questions.Figure 5.1: Micrograph showing slip lines and grain boundaries in Al.() Why does slip prefer to take place in close-packed planes and direction?(4)(i) What are the three stages of deformation that can possibly be observed in this material? Explainbriefly.(6)(iii) What is the most likely stage of slip is observed in this micrograph? Motivate.(4) (iv) How many slip systems are present in this material? Give two examples of valid slip systems in(4)this material.(v) Give the number of active/observed slip systems in each of the grains 1 to 4.(4)(vi) Comment on the orientation relationship between grains 1 and 2, and between 2 and 3.(4)(vii)Slip direction is always in the direction of closest packing. Why?(3)(viii)If one of the grains above is (111), what are the directions of slip?(3)

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Answered: a) Cross slip and climb are important…

a) Cross slip and climb are important phenomena which govern work hardening but also re and recrystallisation processes in metals. Discuss (be brief and to the point).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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