Engineering, 19.03.2020 05:23 mheiser8768

(a) Explain why a stainless steel containing 18wt % Cr is magnetic and is often used for knife blades, while a stainless steel containing 18 wt % Cr and 8 wt% Ni is not magnetic and is often used for stainless steel parts that need to be forged. (Pure Ni has an f. c.c. structure.)(b)Mo, W, and V all readily form small stable carbides. Explain why these elements can be used to produce tool steels thatretain their hardness at temperatures well above the temperature at which martensite would become over-tempered.(c)* A teaspoon is made of a single piece of stainless steel containing nickel. It is observed that the bowl of the spoon is not magnetic, but the handle is. Assume that all parts of the spoon are always at the same temperature, and that plastic deformation is used to form both the bowl and the handle. Explain the difference in properties(why is the crystal structure different).

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, bryneosburn

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Answers: 2

continue

Engineering, 04.07.2019 18:10, meganwintergirl

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Answers: 3

continue

Engineering, 04.07.2019 18:20, cristykianpour

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?

Answers: 2

continue

Engineering, 04.07.2019 19:10, phantomlizz3233

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?

Answers: 3

continue

You know the right answer?

(a) Explain why a stainless steel containing 18wt % Cr is magnetic and is often used for knife blade...