Creep and Stress Rupture

Question 1

Creep and Strees Rupture

Produce deformation in stressed components by ____________ and determine time

Answer 1

High temperature

Question 2

Creep and Strees Rupture

Materials affected

Answer 2

All alloys

Question 3

Creep and Strees Rupture

Eventually lead a _________

Answer 3

Rupture

Question 4

Creep and Strees Rupture

Factors important: time, load, temperature and work above __________

Answer 4

creep range

Question 5

Creep and Strees Rupture

Factors importants for low creep ductily:

______ material
______ grain

Answer 5

• High tensile

- Course

Question 6

Creep and Strees Rupture

Importants zones:

• Heater __________
• ______Tubes
• Furnace________
• Haz and _______ ductile creep.
• Dismilar______

Answer 6

• Tubes
• Reactor
• Tubes
• Nozzles
• welding joints.

Question 7

Creep and Strees Rupture

Creep damage is reversible?

Answer 7

No

Question 8

Creep and Strees Rupture

Creep damage produce deformation?

Answer 8

Yes

Question 9

Creep and Strees Rupture

Creep damage is visible?

Answer 9

Yes

Question 10

Creep and Strees Rupture

Its hard prevent creep?

Answer 10

Yes

Question 11

Creep and Strees Rupture

How prevent Low ductile creep?

Answer 11

Adecuate selection of chemistry and alloy

Question 12

Creep and Strees Rupture

Inspection of creep damage is by visual, mesaurement of diameter and ___________

Answer 12

Metalography