Compute the weight fraction of total ferrite in an iron-carbon alloy that contains 0.43 wt% C just below the eutectoid temperature.

Marisol grew up in a deeply Catholic family, regularly attending Mass. She was confirmed in her early teens, but has recently begun questioning her faith. She’s started reading books on other faith practices and has joined her friends in attending their different faith services. Marisol is exploring her ____. 

Please use the iron (Fe) – carbon (C) phase diagram provided below or in the handout to answer the next 14 questions.

Chose two of the following questions to answer based on material in the chapter/posted resources. Be sure to label the two questions to which you are responding. While you could write entire books on these topics, please keep your responses brief (a few sentences).  Question Option A: Is there value in Standardized Intelligence Testing? Possible answers might include yes, no, or it depends. Explain your reasoning behind the response you chose. Question Option B: Would you recommend a parent enroll their child in a gifted and talented program? Why or why not? Question Option C: Imagine you were asked to consult on a major restructuring of education in the US. What recommendations would you give regarding standardized testing?

For an iron-carbon alloy with a composition of 5 wt% C and 95 wt% Fe, label phase D and indicate its composition in the given schematic sketch of the microstructure at 1145°C.

A copper-nickel alloy of composition 60 wt% Ni-40 wt% Cu is slowly heated from 1200°C (2192°F), what will be the composition of the last solid phase remaining just before the alloy completely melts?

Which of the following is the microstructure formed when an eutectoid steel (0.76 wt% C) is slowly cooled from the eutectoid temperature?

At what temperature does the liquid phase in the copper-nickel phase diagram become completely solid for a 60% copper and 40% nickel composition during cooling?

A copper-nickel alloy of composition 60 wt% Ni-40 wt% Cu is slowly heated from a temperature of 1200°C (2192°F). At what temperature does the first liquid phase form?

A copper-nickel alloy contains 60 wt% Ni-40 wt% Cu. If this alloy is slowly heated from 1200°C (2192°F), what will be the composition of the first liquid phase that forms?