subject
Engineering, 27.12.2019 00:31 katiepotter

Which one of the following statements is true? explain whether each is true or false.

a] pearlite and bainite are examples of phases that can be formed by austenite if the cooling rate
is controlled appropriately.
(b)
when austenite containing 1.2 percent carbon by weight (and no significant amounts of anyother alloying elements) is cooled slowly, hypereutectic fe3c will form above 727�c.
(c)1040 plain carbon steel cannot be spheroidized.
(d)when a metal exhibits a single, well defined freezing temperature, all the crystals formed on cooling will have the same composition.
(e)the hardenability of 1060 plain carbon steeldoes not depend on the hardness of the sample at room temperature prior to heat treatment.

ansver
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, lerasteidl
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
image
Engineering, 04.07.2019 18:20, DroctorWellsfan
Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above
Answers: 1
image
Engineering, 04.07.2019 18:20, dlr1628
Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?
Answers: 2
image
Engineering, 04.07.2019 19:20, rida10309
At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2
Answers: 2
You know the right answer?
Which one of the following statements is true? explain whether each is true or false.

a...

Questions in other subjects:

Konu
Mathematics, 29.01.2021 04:00
Konu
Mathematics, 29.01.2021 04:10
Konu
Mathematics, 29.01.2021 04:10
Konu
Biology, 29.01.2021 04:10