Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Question
Chapter 10, Problem 10.11P
To determine
The thickness and mass of zinc electroplating.
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The rate of corrosion in a galvanic cell can be reduced by:
a. Increasing the temperature of the galvanic cell.
b. Reducing the surface area of the anode in comparison to the cathode.
c. Reducing the surface area of the cathode in comparison to anode.
d. Increasing the ion concentration in the electrolyte.
Which compound is liberates higher heat
at 3 days from the hydration *
Tetra calcium Aluminoferrite
Tricalcium silicate
Tricalcium aluminate
Dicalcium silicate
Q.1. For hypereutectoid plain carbon steel (select %C content yourself), determine the phases that
are present, the compositions of these phases, and the percentages or fractions of the phases. Make
schematic sketches of the microstructure that would be observed for conditions of very slow
cooling at the following temperatures:
a) Just above the austenite transformation temperature
b) The austenite transformation temperature 10°C
c) The eutectoid transformation temperature +10°C
d) The eutectoid transformation temperature 10°C
Chapter 10 Solutions
Materials Science And Engineering Properties
Ch. 10 - Prob. 1CQCh. 10 - Prob. 2CQCh. 10 - Prob. 3CQCh. 10 - Prob. 4CQCh. 10 - Prob. 5CQCh. 10 - Prob. 6CQCh. 10 - Prob. 7CQCh. 10 - Prob. 8CQCh. 10 - Prob. 9CQCh. 10 - Prob. 10CQ
Ch. 10 - Prob. 11CQCh. 10 - Prob. 12CQCh. 10 - Prob. 13CQCh. 10 - Prob. 14CQCh. 10 - Prob. 15CQCh. 10 - Prob. 16CQCh. 10 - Prob. 17CQCh. 10 - Prob. 18CQCh. 10 - Prob. 19CQCh. 10 - Prob. 20CQCh. 10 - Prob. 1ETSQCh. 10 - Prob. 2ETSQCh. 10 - Prob. 3ETSQCh. 10 - Prob. 4ETSQCh. 10 - Prob. 5ETSQCh. 10 - Prob. 10.1PCh. 10 - Prob. 10.2PCh. 10 - Prob. 10.3PCh. 10 - Prob. 10.4PCh. 10 - Prob. 10.5PCh. 10 - Prob. 10.6PCh. 10 - Prob. 10.7PCh. 10 - Prob. 10.8PCh. 10 - Prob. 10.9PCh. 10 - Prob. 10.10PCh. 10 - Prob. 10.11PCh. 10 - Prob. 10.12P
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- Which of the following describes galvanic corrosion? Select one: a. Two metals/alloys of different compositions are coupled while exposed to an electrolyte. b. Oxidation and reduction reactions occur randomly over the surface. c. Localized corrosion that may be initiated at a surface defect. d. Corrosion that results from a difference in concentration of ions or dissolved gases in the electrolyte. e. Corrosion that occurs preferentially along grain boundaries. f. Corrosion resulting from the combined action of chemical attack and mechanical abrasion or wear. g. One element is preferentially removed as a result of corrosion. h. Corrosion resulting from the combined action of an applied tensile stress and a corrosive environment.arrow_forwardFor a steel alloy it has been determined that a carburizing heat treatment of 11.9 h duration will raise the carbon concentration to 0.440 wt% at a point 1.00 mm from the surface. Estimate the time necessary to achieve the same concentration at a 6.40 mm position for an identical steel and at the same carburizing temperature.arrow_forwardWhich one has a higher coeffiecient of thermal expansion? High purity fused silica or Pyrex glass (borosilicate)?arrow_forward
- A teapot with a surface area of 665 cm2 is to be plated with silver. It is attached to the negative electrode of an electrolytic cell containing silver nitrate (Ag+ NO3−). The cell is powered by a 12.0-V battery and has a resistance of 1.30 Ω. If the density of silver is 1.05 104 kg/m3, over what time interval does a 0.133-mm layer of silver build up on the teapot?arrow_forward[14] Electrolysis process is based on : * O thermal effect of current O chemical effect of current O luminous effect of current magnetic effect of currentarrow_forwardFor a 99.65 wt% Fe-0.35 wt% C alloy at a temperature just up the eutectoid teamperature, determine the following: (a) The fractions of each phases. (b) The Cooling curve for the specific alloy. (C) Descript the phases for this alloy. Subject: Metallurgyarrow_forward
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