Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 5.7, Problem 10KCP
To determine
Describe the gas-carburizing process for steel parts. Why is the carburization of steel parts carried out?
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Chapter 5 Solutions
Foundations of Materials Science and Engineering
Ch. 5.7 - Prob. 1KCPCh. 5.7 - Write an equation for the number of vacancies...Ch. 5.7 - Prob. 3KCPCh. 5.7 - Prob. 4KCPCh. 5.7 - Describe the substitutional and interstitial...Ch. 5.7 - Prob. 6KCPCh. 5.7 - What factors affect the diffusion rate in solid...Ch. 5.7 - Write the equation for Ficks second law of...Ch. 5.7 - Prob. 9KCPCh. 5.7 - Prob. 10KCP
Ch. 5.7 - (a) Calculate the equilibrium concentration of...Ch. 5.7 - Prob. 12AAPCh. 5.7 - Determine the diffusion flux of zinc atoms in a...Ch. 5.7 - The diffusion flux of copper solute atoms in...Ch. 5.7 - Prob. 15AAPCh. 5.7 - Prob. 16AAPCh. 5.7 - Prob. 17AAPCh. 5.7 - A gear made of 1020 steel (0.20 wt% C) is to be...Ch. 5.7 - Prob. 19AAPCh. 5.7 - The surface of a steel gear made of 1020 steel...Ch. 5.7 - Prob. 21AAPCh. 5.7 - If boron is diffused into a thick slice of silicon...Ch. 5.7 - Prob. 23AAPCh. 5.7 - Prob. 24AAPCh. 5.7 - Prob. 25AAPCh. 5.7 - Prob. 26AAPCh. 5.7 - Prob. 27AAPCh. 5.7 - Prob. 28AAPCh. 5.7 - Prob. 29AAPCh. 5.7 - Prob. 30AAPCh. 5.7 - The diffusivity of copper atoms in the aluminum...Ch. 5.7 - Prob. 32AAPCh. 5.7 - Prob. 33SEPCh. 5.7 - Prob. 34SEPCh. 5.7 - Prob. 37SEPCh. 5.7 - Prob. 38SEPCh. 5.7 - The activation energy of nickel atoms in FCC iron...Ch. 5.7 - Prob. 40SEPCh. 5.7 - The self-diffusion of iron atoms in BCC iron is...Ch. 5.7 - Would you expect the diffusion rate of copper...Ch. 5.7 - Would you expect the diffusion rate of copper...Ch. 5.7 - Prob. 44SEPCh. 5.7 - Prob. 45SEPCh. 5.7 - Prob. 46SEPCh. 5.7 - Prob. 47SEPCh. 5.7 - Prob. 48SEPCh. 5.7 - Prob. 49SEPCh. 5.7 - Prob. 50SEP
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- A 609 g eutectoid steel ( about 0.8%C) is heated to 1,002 C and cooled slowly through the eutectorid temperature. This results in the formation of cementite Fe3C (6.67%C) and ferrite (0.025%C). Calculate the number of grams of cementite that form in the steel.arrow_forwardDraw thermal equilibrium diagram for the binary alloy system (Si-Au), from the following data:- a- Silicon melts at 1414 °C, and gold melts at 1064 °C. b-Eutectic is formed at 360°C containing 20 Wt% Si -80 Wt% Au, and identify all phases are present in the diagram c-Determine the amount of each phase for the alloy which consist of 60 Wt% Si- 40Wt % Au at 1200 °C and 800 °C ,then determine the amount of eutectic at 200 °C?arrow_forwardDescribe the cooling of a peritectic alloy with the concentration CO and sketch the microstructure during solidification. T S+α 8 S S+B a+ß В сarrow_forward
- For alloy A-B of composition Co (C dot) is 33 at some temperature is found to consist of mass fractions of 0.75 and 0.25 for alpha and beta phases respectively. If the composition of the alpha phase is 15wt% B - 85 wt% A, what is the composition of the beta phase?arrow_forwardFor a Fe-2.5 %C alloy , what is the temperature at which the first liquid forms on heating and also give the composition of the liquid at that temperaturearrow_forwardfind the relative amounts (in terms of mass fractions) of the phases for the following alloys and temperature: 90 wt% Zn-10 wt% Cu at 400°C.arrow_forward
- What factors determine the Debye temperature of a particular element? Provide comments,with sufficient details, on the choice of factors.arrow_forwardI want to know the formula for calculating the molar entropy change of aluminium giving the initial and final temperatures?arrow_forwardDetermine the carburizing time necessary to achieve a carbon concentration of 0.50 wt% at a position 1.2 mm into an iron-carbon alloy that initially contains 0.18 wt% C. The surface concentration is to be maintained at 1.1 wt% C, and the treatment is to be conducted at 1200°C. Assume that Do 6.5 x 10-5 m2/s and Qd = 168 kJ/mol. The following table may be useful. %3D Table 5.1 Tabulation of Error Function Values erf(z) erf(z) erf(z) 0.55 0.5633 1.3 0.9340 0.0282 0.0564 0.025 0.60 0.6039 1.4 0.9523 0.05 0.10 0.65 0.70 0.75 0.6420 1.5 0.9661 0.1125 0.6778 1.6 0.9763 0.15 0.1680 0.7112 1.7 0.9838 0.20 0.2227 0.80 0.7421 1.8 0.9891 0.85 0.90 0.25 0.2763 0.7707 1.9 0.9928 0.9953 0.9981 0.30 0.3286 0.7970 2.0 0.35 0.3794 0.95 0.8209 2.2 0.8427 0.8802 0.40 0.4284 1.0 2.4 0.9993 0.45 0.4755 1.1 2.6 0.9998 0.50 0.5205 1.2 0.9103 2.8 0.9999arrow_forward
- 6. Match the proper description of the microstructure depicted below. Put the corresponding number/letter in the box beneath the microstructure. Assume equilibrium cooling conditions. Fe3C Fe3C Fe3Carrow_forwardTemperature zones, A, B, C and D, for a range of heat-treatment processes for carbonsteel are shown in Figure 2 below. Identify and explain the heat-treatment processrepresented by the zonesarrow_forwardDetermine the Miller- Bravais indicesarrow_forward
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