3. What is the proeutectoid phase for an iron-carbon alloy in which the mass fractions of...
What is the proeutectoid phase for an iron-carbon alloy in which the mass fractions of total ferrite and total cementite are 0.96 and 0.04, respectively? See Animated Figure 9.24 Part 1 What are the concentrations of carbon in a-ferrite and FeyCat a temperature just below 727°C? You may want to use Animated Figure 9.24 (a) C = i (b) Cre,c = i Save for Later Attempts:0 of 1 used Submit Answer Part 2 Compute the composition of an iron-carbon alloy...
2. The mass fractions of ferrite and cementite in an iron-carbon alloy are 0.88 and 0.12, respectively, at 7270C. Note that the solubility of carbon in ferrite is 0.026 wt% at 7270C. Using the Fe-C phase diagram in Part A, determine whether this alloy is hypoeutectoid or hypereutectoid.
The microstructure of an iron-carbon alloy consists of proeutectoid cementite and pearlite; the mass fractions of these microconstituents are 0.12 and 0.88, respectively. Determine the concentration of carbon in this alloy. The iron-iron carbide phase diagram is shown in the Animated Figure 9.24. wt%C Composition = 0 wt% C Composition = 0 at% C Temperature = 400 °C Temperature = 752 F 2025 Composition (at% C) 10 15 160025 1600 97538 9493 °C 1400 1400 2500 | 1394 °C y+L...
6. The microstructure of an iron-carbon alloy consists are of an iron-carbon alloy consists of procutectoid cementite and pearlite, the mass fraction of these microconstituents are 0.17 and of these microconstituents are 0.17 and 0.83, respectively. Determine, a) the concentration of carbon on this alloy and by the phase limit compositions (15 pts) 7+ Fec Temperature + Fec 6.70 0.022 0.76 V+X) (Pearlite); Ci Wrc = V/(V+X) (proeutectoid cementite)
4. (12 marks) This question pertains to the iron-iron carbide phase dingrane below 1%)() 2.11 43 Ai 0.77 727"C 6.67 500 0.0218 Fe,C Weight percent carborn For a Fe-0.6 wt% C alloy at temperature just below the eutectoid. (a) calculate the fractions of total ferrite and cementite phases b) Calculate fractions of the proeutectoid ferrite and pearlite.
s. (15 points) Four kilograms ) what temperature muistns of steel containing 0.50 wt% carbon is to be heat treated. b) if slowly cooled from the Austenite phase, what jsrthe proeutectoid phase that is formed? c) how many kilograms of Pearlite will be in the steel when cooled to room temperature? d) compute the mass fractions 6t Péfrnite and Cemente in Peartite e) the microstructure of a different iron-carbon alloy consists of proeutectoid ferrite and pearlite. The containing 0.5 it...
8. The mass fraction of eutectoid cementite in an iron-carbon alloy is 0.109. on the basis of this information, is it possible to determine the composition of the alloy? If so, what is its composition? If this is not possible, explain why.
Use the iron-carbon phase diagram below to answer the following
questions. For phase mass fractions and composition, it
is expected that you will use a straight-edge and ruler (or
electronic equivalent). Note that there is a similar
diagram in Chapter 10 of the Callister text if you would like to
use it for reference. For the solid phase names, please
use the Greek letter notation (alpha, gamma, delta, etc.) or the
corresponding English nomenclature (ferrite, austenite, etc.)
At what temperature does pure iron...
"Steels" are generally two-phase systems of what two phases? Iron and carbon O Iron and cementite (Fe3) Pearlite and bainite Austenite and ferrite
Multiple choice The iron carbide (Fe 3C) phase in steel that is hard and brittle is known as: Austenite, ferrite, cementite, martensite -------is a shape produced by solidification of a liquid metal (material) in a mold. cupola, drag, casting, forming ------- is a phase in steel composed of alternating layers of cementite and ferrite. pearlite, lattice, Fe3C, martensite Steel is an alloy of carbon and iron with limits on the amounts of carbon to be approximately: more than 1%, less...