Consider the graph below for 3 metals which have been cold-worked. From the graphs, which of the following statements are true?

Q: & Feathery structure in heat treated steel, in general, confirms the presence of (a) lower bainite…

A: Answers: 8. b) upper bainite. (Upper bainite is usually referred to a feathery bainite.) 9. d) alpha…

Q: Briefly discuss the slip process and determine if small-angle grain boundaries or high-angle grain…

A: Slip Process: Slip mainly occurs by the passage of dislocations on close packed planes where as the…

Q: Calculate the percent cold reduction when an Al wire is cold drawn from a diameter of 4 mm to a…

A: Given data,  D1= 4 mm  D2= 2 mm

Q: Micro-hardness profiles were obtained for the tool steel, the weld zone and stainless steel. Figure…

A: A statement is given that " the dents on the stainless steel is larger than those on the tool…

Q: Which method do we use to monitor dislocation movements in tensile testing? How monitoring is done…

A: Dislocations and their interactions strongly influence many material properties, ranging from the…

Q: HOME WORK 1 The figure shows two work pieces of steel of 0.3 %C and 1.3 %C with different…

A: If the annealing process is carried out at controlled heating and cooling rates, Size will not…

Q: Heat treatment processes are conducted in steel specimens. As a result, these specimens may become…

A: This question is based on the topic of material science and heat treatment.

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.