Question: your help is much appreciated please help this question asapabcdefghi...
Your help is much appreciated.
Please help this question ASAP(a,b,c,d,e,f,g,h,i). This question has different parts as seen in the bracket.
PLEASE mark the graph or indicate how to mark the answer on the graph for part (a)
Parts b,c,d are shown as a picture.
So please answer ALL QUESTIONS otherwise it won't help. If you are NOT SURE that your answer is correct or not completed, PLEASE PLEASE do not post it.
The following binary phase diagram is the basis for steel and
cast iron metallurgy. It
provides important information of different phases form during heating and cooling of steels
including during welding, although welding is a non-equilibrium process and therefore other
phases such as martensite or bainite may form. Therefore, it is important that students have
a detailed understanding of the Fe-Fe3C phase diagram.
To predict the formation of phases with different cooling rates, TTT and CCT diagrams are very
useful as discussed during lectures.
e) For a plain carbon steel with 0.45%C identify the phases
which form when the steel is cooled from
molten state at 1550 oC to around 210oC. You need to identify the temperature (oC) at which
different phases form.
f) Do you call this steel as a hypo- or hyper-eutectoid
g) Identify the phases that are present at 210 oC with their composition.
h) Calculate the quantity of each phase identified in (g).
i) Calculate the quantity of ferrite and pearlite for your steel (0.45%C) at 210 oC.