Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Chapter 4, Problem 33RQ
To determine
The relative ability of iron to dissolve carbon when in the form of austenite and ferrite.
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1. What temperature does a Fe-C metal with less than 4 weight percent C melt at?
2. What temperature does a Fe-C metal with less than two weight percent C melt at?
3. What climate causes delta-Fe to change into gamma-Fe?
4. What percentage of proeutectoid Fe 3C is present in a steel with 1.15 wt% carbon at 727.1 o C?
Analyze the development of microstructure in Iron-Carbon alloys.
On the right side of the iron-carbon diagram, what kind of metal is found when the carbon content is over 2 percent?
Chapter 4 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 4 - What kind of questions can be answered by...Ch. 4 - Prob. 2RQCh. 4 - Supplement the examples provided in the text with...Ch. 4 - Prob. 4RQCh. 4 - What three primary variables are generally...Ch. 4 - Use the pressure–temperature diagram for water...Ch. 4 - Prob. 7RQCh. 4 - What form of equilibrium phase diagram is most...Ch. 4 - What is a cooling curve?Ch. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - What types of changes occur upon cooling through a...Ch. 4 - Prob. 15RQCh. 4 - What is a tie�line? For what types of phase...Ch. 4 - What points on a tie�line are used to determine...Ch. 4 - Prob. 18RQCh. 4 - What is a cored structure? Under what conditions...Ch. 4 - What is the difference between a cored structure...Ch. 4 - Prob. 21RQCh. 4 - Prob. 22RQCh. 4 - Prob. 23RQCh. 4 - Prob. 24RQCh. 4 - For the various three�phase reactions, what does...Ch. 4 - Prob. 26RQCh. 4 - Prob. 27RQCh. 4 - Prob. 28RQCh. 4 - Prob. 29RQCh. 4 - Prob. 30RQCh. 4 - Prob. 31RQCh. 4 - Prob. 32RQCh. 4 - Prob. 33RQCh. 4 - Prob. 34RQCh. 4 - Prob. 35RQCh. 4 - Prob. 36RQCh. 4 - Prob. 37RQCh. 4 - What is carbon equivalent, and how is it computed?Ch. 4 - Prob. 39RQCh. 4 - Prob. 40RQCh. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Consider the manufacture of a fishhook beginning...Ch. 4 - If a stainless steel were to be used, what type of...Ch. 4 - A wide spectrum of coatings and surface treatments...Ch. 4 - Prob. 1.4CSCh. 4 - Prob. 2.1CSCh. 4 - Prob. 2.2CSCh. 4 - Prob. 2.3CSCh. 4 - Prob. 2.4CS
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- Rank the following four iron-carbon alloys from the hardest to the softest. Fe;C- Fe;C- Fe,C- Fe,C (A) (B) (C) (D)arrow_forwardFor an Fe-0.35% C alloy, determine (a) the temperature at which austenite first begins to transform on cooling; (b) the primary microconstituent that forms; (c) the composition and amount of each phase present at 728 °C; (d) the composition and amount of each phase present at 726 ° C; and (e) the composition and amount of each microconstituent present at 726 °C.arrow_forward2 By using the Iron - Carbon diagram that you have. Find 5 of the following. 1- Find the Eutectic, Eutectoid temperature of cast iron with 4.3% C 2- The microstructure of Cast iron with 3.5% C. 3- Find the melting point and microstructure of steel with 0.83% C 4- Define the temperature range for Acm temperature. 5- Find the AC3, Ac¡ temperature of steel with 0.45% C 6- The Liquid and Austinite percent with chemical composition for cast iron with 2.3% C at 1300°Carrow_forward
- In white cast iron, the carbon is in combined form as . cementit O iron O silicon O cementitearrow_forwardBy using the Iron - Carbon diagram that you have. Find 5 of the following. 1- The microstructure of Cast iron with 3% C. 2- The Liquid and Austinite percent with chemical composition for cast iron with 2% C at 1300°C 3- Find the melting point and microstructure of steel with 0.83% C 4- Define the temperature range for Acm temperature. 5- Find the Ac3, Acl temperature and microstructure of steel with 0.4 % C 6- Find the Eutectic, Eutectoid temperature and microstructure of cast iron with 4.3% Carrow_forwardIdentify the components temperature and approximate composition (of wt.% C) at which the peritectic transformation occurs in Fe-C alloys. Explain why delta-ferrite is not expected to be retained on equilibrium cooling a steel of this composition through the invariant reaction.arrow_forward
- During a quenching process on a TTT diagram, we can transform pearlite into bainite. True or false?arrow_forwardConsider a Fe-0.5% C alloy. What is the amount of pro eutectoid phase (in percentage ) just above the eutectoid temperaturearrow_forward1 Plastic Deformation Occurs Through Dislocation Motion... ...so in order to make a material stronger, we should prevent dislocations from moving. For each of the following alloys, identify the strengthening mechanism and explain how it impedes dislocation motion: A. An aluminum alloy "inoculated" with TiB2 during solidification, producing a large number of small grains. B. Monel, a corrosion-resistant solid solution of Ni and Cu. C. An aluminum-lithium aerospace alloy containing precipitates of Al3Li. D. Wrought iron, which is often worked into complex shapes such as railings or furniture.arrow_forward
- The form of pure iron at room temperature called: O Ferrite with a BCC crystal structure O 8-ferrite with a FCC crystal structure O Austenite with a FCC crystal structure O Ferrite with a FCC crystal structurearrow_forwardAt room temperature, the steel contains 18% cementite and 82% ferrite. Calculate the amount of carbon in the steel and determine whether it is hypo-eutectoid or hyper-eutectoid.arrow_forward1-The microstructural design of Iron-Carbon(Fe-C) alloys has led to the development of vast range of steels for structural material applications. The phase diagram provide means for producing specific microstructures. Using the phase diagram below to answer the following questions A – If the liquid mixture of Fe-3%Wt C is slowly cooled from 1600 C to 1200C indicate the phase(S) that are present at 1200 C . Also calculate the composition of the of phases.(10) B-Describe the sequence of all phase transformation that accour from Fe-1.5%wt C is slowly cooled from 1600 C to 400 C. Use the diagram below to to describe the microstructures for each phase transformation (10)arrow_forward
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