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 3P
(a)
To determine
The various intermetallic compounds.
(b)
To determine
The use of metallographic microscopy.
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For two hypotetical materials which have limitless solubility for both in the “liquid” and “solid” states in each other, the following data are listed. Melting Temperatures of material A and B are Tm,A and Tm,B respectively, Liquidus and Solidus curves are circular arcs.
a- Draw the related “Phase Diagram” of Material A and Material B showing the data given and calculated.
b- Calculate/Determine the compositions of phases at T2 , explain the procedure.
c- Calculate/Determine the “percentages” of “phases” of Alloy,2 at T2 , explain the procedure.
Given:
-Tm,A, Celcius =530
-Tm,B, Celcius =830
-T1, Celcius =630
-B percentage of Liquid phase at
T1 =35
-B percentage of Solid phase
at T1 =80
-B percentage of Alloy 2. =60
-T2, Celcius =680
-B percentage of Liquid phase of
Alloy 2 at T2 = to be calculated
-B percentage of Solid phase of
Alloy 2 at T2 = to be calculated
Use the phase diagrams for Cu-Ni and Cu-Ag systems below to answer the question:
Based on the mechanism, would you expect a solution containing 80 wt% Cu to be stronger if the remaining 20% of the alloy was Ni or Ag? Briefly explain
Imagine a substance with the following points on the phase diagram: a triple point at .5 atm and -5ºC; a normal melting point at 20ºC; normal boiling point at 150ºC; and a critical point at 5 atm and 1000ºC. The solid liquid line is “normal” (meaning positive sloping). For this, complete the following:
1. Describe what one would see at pressures and temperatures above 5 atm and 1000ºC.
2. Describe what will happen to the substance when it begins in a vacuum at -15 ºC and is slowly pressurized.
3. Describe the phase changes from -80ºC to 500ºC at 2 atm.
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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- Provide a hypothetical procedure for measuring the phase diagram at different temperatures.arrow_forwardVisualize a substance with the following points on the phase diagram: a triple point at 0.05 atm and 150 K; a normal melting point at 175 K; A normal boiling at 350 K; and a Critical point at 2.0 atm and 450 K. The solid liquid line is normal. For this complete the following: a. Describe what one would see at pressures and temperatures above 2.0 atm and 450 K. b. Describe the phase changes from 50 K to 250 K at 1.5 atmarrow_forward1) Given the following information construct a hypothetical phase diagram formetals A and B between the temperatures of 400 and 800 o C given the followinginformation The two end member components are A and B The bottom axis should given in mol% B with 100 mol% B being on the right sideof the diagram. The melting temperature of metal A is 750 o C. The melting temperature of metal B is 700 o C. One eutectic occurs at 600 o C and 75 mol% B. The maximum solubility of A in B is 15 mol% A, and occurs 600 o C.The maximum solubility of B in A is 10 mol% B and occurs 600 o C. 2) Label all regions on the phase diagram 3) Sketch representations of the equilibrium microstructures for the phase diagramabove, for an A-B alloy of the eutectic composition at 750 and 500 o Carrow_forward
- How can we Interpret a Phase Diagram?arrow_forwardThe copper-nickel system is a simple alloy system, as indicated by its phase diagram. Why is it so simple?arrow_forwardReproduce the binary phase diagram depicted in Fig. 3.20. For the composition shown at X, mark on the diagram approximate temperatures used for the three main thermal process steps used in precipitation hardening: solution treatment, quenching, and aging.arrow_forward
- What is the composition, in wt% Cr2O3, of the liquid phase in an alloy containing 71 wt% Cr2O3 at 2200C?arrow_forward1. Visualize a substance with the following points on the phase diagram: a triplepoint at 0.05 atm and 150 K; a normal melting point at 175 K; a normal boiling pointat 350 K; and a critical point at 2.0 atm and 450 K. The solid liquid line is “normal”(meaning positive sloping). For this, complete the following:a. Roughly sketch the phase diagram, using units of atmosphere and Kelvin. Labelthe area 1, 2, and 3, and points T and C on the diagram.b. Describe what one would see at pressures and temperatures above 2.0 atmand 450 K.c. Describe the phase changes from 50 K to 250 K at 1.5 atm.d. What exists in a system that is at 1 atm and 350 K?e. What exists in a system that is at 1 atm and 175 K?2. Based from the phase diagrams of water and carbon dioxide, answer thefollowing questions and justify your answers: 1. You have ice at 263 K (-10.0 oC)and 1.0 atm. What could you do to make the ice sublime? 2. A sample of dry ice(solid CO2) is cooled to 173 K (-100.0 oC), and is set on a table at…arrow_forwardD23/ Below are given the solidus and liquidus temperatures for the germanium-silicon system. Construct the phase diagram for this system and label each region.arrow_forward
- Use the phase diagrams for Cu-Ni and Cu-Ag systems below to answer the question: Use the diagrams provided to determine the values of the following: i. Solubility of Ni in Cu at 1050 °F. ii. Solubility of Ag in Cu at 700 °F.iii. Solubility of Cu in Ni at 1300 °F. iv. Solubility of Cu in Ag at 400 °F.arrow_forwardIm on part c. Im so confused, how do i know how much is in liquid or vapor phase there is no mention of quality or anything my friend said to look at the properties in the tables but that doesnt help to determine how much r134 is in hwat phase please help me.arrow_forwardFor the metals A and B, which are given below, create the hypothetical phase diagram between 500 ° C and 900 ° C temperatures.Ø A metal has a melting temperature of 840 ° C.The solubility of Ø B in A can be ignored at all temperatures.Ø Melting temperature of Metal B is 730 ° C.The maximum solubility of A in Ø B is 10% A by weight, which occurs at 600 ° C.At 500 ° C, the solubility of A in B is 6% A by weight.Ø An eutectic 600 ° C and 74% B by weight - 26% by weight A are formed.Ø The second eutectic occurs at 630 ° C and 59% B - 41% A by weight.Ø A third eutectic occurs at 655 ° C and 39% B - 61% A by weight.Ø A congress melting point is formed at 680 ° C and 52% B - 48% A by weight.Ø A second congress melting point is formed at 655 ° C and 66% B - 34% A by weight.Ø Intermetallic compound AB is present at 52 wt% B - 48 wt% A.Ø Intermetallic compound AB2 is present at 66 wt% B to 34 wt% A.arrow_forward
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Material Science, Phase Diagrams, Part 1; Author: Welt der Werkstoffe;https://www.youtube.com/watch?v=G83ZaoB3XCc;License: Standard Youtube License