How do we get Martensitic start and finish temperature?

How do we get Martensitic start and finish temperature?

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How do we get Martensitic start and finish temperature?

How do we get Martensitic start and finish temperature?

Read lesssince homogeneous system is that system which consists of single phase so can we say that at room temperature all the pure metal comes under homogeneous system?

since homogeneous system is that system which consists of single phase so can we say that at room temperature all the pure metal comes under homogeneous system?

Read lessHello, I would like to know your opinion on the method by which this steel was made. What distinguishing features of forging from rolled products are visible on the microstructure? (30 X magnification)

Hello, I would like to know your opinion on the method by which this steel was made. What distinguishing features of forging from rolled products are visible on the microstructure?

*(30 X magnification)*

Define metallurgy with some examples.

Define metallurgy with some examples.

Read lessThe equilibrium microstructure of an alloy A-B consists of two phases α and β in the molar proportion 2:1. If the overall composition of the alloy is 70 mol% B and the composition of β is 90 mol% B, the ...Read more

The equilibrium microstructure of an alloy A-B consists of two phases α and β in the molar proportion 2:1. If the overall composition of the alloy is 70 mol% B and the composition of β is 90 mol% B, the composition of α is _______(in mol% B) (round off to the nearest integer).

Read lessGiven the stress tensor, the maximum shear stress is MPa (round off to the nearest integer).

Given the stress tensor, the maximum shear stress is MPa (round off to the nearest integer).

Read lessAir at 300 K is passed at a mass flow rate of 1.5 kgs1 through a metallic tube of inner diameter 0.08 m. Inner wall temperature of the tube is maintained at 700 K. Temperature of the air leaving the ...Read more

Air at 300 K is passed at a mass flow rate of 1.5 kgs1 through a metallic tube of inner diameter 0.08 m. Inner wall temperature of the tube is maintained at 700 K. Temperature of the air leaving the tube is 600 K. Assuming that heat transfer occurs entirely by steady state convection, length of the tube is ______ m (round off to 2 decimal places).

Given: the coefficient of convective heat transfer from tube wall to air is 500 Wm^{2} K^{1}. Assume specific heat capacity of air to be constant and equal to 1080 Jkg^{1}K^{1} and π = 3.14

A cylindrical specimen of an Al alloy with diameter of 30 mm is cold extruded to a diameter of 20 mm. If the flow behavior of the alloy is expressed by the equation, 𝜎 = 350 𝜖0.3 MPa, the ideal ...Read more

A cylindrical specimen of an Al alloy with diameter of 30 mm is cold extruded to a diameter of 20 mm. If the flow behavior of the alloy is expressed by the equation, 𝜎 = 350 𝜖^{0.3} MPa, the ideal plastic work of deformation per unit volume is ____ × 10^{6} J (answer rounded off to the nearest integer).

Steel plates are welded autogenously using Gas Tungsten Arc welding with an arc heat transfer efficiency of 0.65. The first weld is made using a welding current of 200 A at an arc voltage of 18 V with a welding ...Read more

Steel plates are welded autogenously using Gas Tungsten Arc welding with an arc heat transfer efficiency of 0.65. The first weld is made using a welding current of 200 A at an arc voltage of 18 V with a welding speed of 0.002 ms^{–1}.

The second weld is made at a welding speed of 0.0022 ms^{–1} with the same arc voltage. If both the welds have identical heat input, the welding current of the second weld is _____ A (round off to the nearest integer).