An alloy in the A-B system is 40% B and is within the α + β two phase field, where the a phase contains 5% B and the β phase contains 90% B. Find the fraction α phase in the structure.

0.59

Explanation:

based on Lever's phase rule, we can find the fraction of the α phase in the structure using the following formula:

where

=  mass fraction of element B in the entire alloy or mixture = 40%

= mass fraction of element B in the β phase = 90%

= mass fraction of element B in the α phase = 5%

hence we have

∴ The fraction α phase in the structure is ≈ 0.59

answer:

ask me the quest

explanation:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only