Which of the following best describes the process of work hardening of metals.Question 5Answera.The process of deforming the metal to increase the yield strengthb.The process of deforming the metal to increase the modulusc.The process of changing the size of the metal crystals by heat treatment to increase the yield strengthd.The process of alloying in other atoms to increase the yield strength

hoose the statement which is TRUEQuestion 1Answera.A higher number of dislocations in a given material will lead to a decrease in modulusb.Work hardening results in materials becoming more brittlec.The work hardening rate is a material property that describes the optimum rate of elongation to efficiently produce dislocationsd.Dislocations always repel each other

Plastically deforming a metallic material at room temperature will...Question 8Select one:a.Decrease its yield strength, but increase its uniform strainb.Increase its yield strength, and leave uniform strain unaffectedc.Decrease its yield strength, and leave uniform strain unaffectedd.Decrease both its yield strength and uniform straine.Increase its yield strength, but decrease its uniform strainf.Increase both its yield strength and uniform straing.Leave its yield strength unaffected, but decrease its uniform strainh.Leave its yield strength unaffected, but increase its uniform strain

Discuss how the hardenability of a steel be improved?

Describe the process of case hardening. Give an example of the application of case hardeningand state why it is suitable for that application.

Which of the following statements is incorrect regarding manufacturing processes?Question 1AnswerA.Forming encompasses a family of techniques whereby a raw material is shaped by stretching, bending, or compression. Large forces are applied to plastically deform a material into its new permanent shape.B.Machining includes steps taken to treat a component’s surface to make it harder, improve its appearance, or protect it from the environment.C.Casting is the process whereby liquid metal is poured into a mold, cooled, and solidified.D.Joining includes operations used to assemble subcomponents into a final product by welding, soldering, riveting, bolting, or adhesively bonding them.