Podcast
Questions and Answers
What is the term used to describe the transformation of austenite-martensite without the need for diffusion or thermal activation?
What is the term used to describe the transformation of austenite-martensite without the need for diffusion or thermal activation?
- Athermal transformation (correct)
- Austenitic transformation
- Annealing transformation
- Isothermal transformation
What is the crystal structure of martensite after the transformation from FCC -Fe (austenite)?
What is the crystal structure of martensite after the transformation from FCC -Fe (austenite)?
- Orthorhombic
- Body Centered Tetragonal (BCT) (correct)
- Hexagonal
- Cubic
Why does martensite transform to equilibrium phases when annealed at an elevated temperature?
Why does martensite transform to equilibrium phases when annealed at an elevated temperature?
- To decrease its brittleness
- To reach a stable state (correct)
- To enhance its metastability
- To increase its hardness
Why does martensite not appear in the Fe-C phase diagram?
Why does martensite not appear in the Fe-C phase diagram?
Which diagram can be influenced by the addition of alloying elements such as Mn?
Which diagram can be influenced by the addition of alloying elements such as Mn?
What happens to the TTT diagram when Mn is added?
What happens to the TTT diagram when Mn is added?
What is the name of the diagram that represents the overall transformation rate as a function of time?
What is the name of the diagram that represents the overall transformation rate as a function of time?
In normal industrial practice, under what conditions do transformations typically take place?
In normal industrial practice, under what conditions do transformations typically take place?
What term is used to describe the transformation rate that is the product of nucleation rate and growth rate?
What term is used to describe the transformation rate that is the product of nucleation rate and growth rate?
What is the term used to describe the transformation that takes place under continuous cooling conditions?
What is the term used to describe the transformation that takes place under continuous cooling conditions?
Flashcards are hidden until you start studying
