What is the mechanism by which carbon strengthens steel in the absence of heat treatment?
What is the mechanism by which carbon strengthens steel in the absence of heat treatment?
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What is the mechanism by which carbon strengthens steel in the
absence of heat treatment?
Its a thermal treatment of metallic materials from material science questions QUESTION 9 a) Heat treatment...
Its a thermal treatment of metallic materials from
material science questions
QUESTION 9 a) Heat treatment schedule for three (3) thin samples of plain carbon steel containing different carbon concentration is summarized in Table Q9(a). Determine and sketch the resultant microstructure for each steel. Distinguish steel 1 from steel 3 with reference to their mechanical properties. Table 29(a) Steel wt% C Heating temperature Soaking time (°C) (minutes) Cooling process 1 0.5 950 60 Furnace cooled 2 0.8 800 60 Air...
3. For a steel alloy it has been determined that a carburizing heat treatment of 10...
3. For a steel alloy it has been determined that a carburizing heat treatment of 10 h duration will raise the carbon concentration to 0.45 wt% at a point 2.5 mm from the surface. Estimate the time necessary to achieve the same concentration at a 5.0 mm position for an identical steel and at the same carburizing temperature. [40]
2 a) It is given that a carburizing heat treatment of 10-hour duration of a steel...
2 a) It is given that a carburizing heat treatment of 10-hour duration of a steel alloy will raise the carbon content to 0.45 wt% at a point 2.5 mm away from the surface. Compute the time required to get the same concentration at a 5.0-mm position from the surface at the same carburizing temperature for an identical steel alloy (Hint: The diffusion coefficient will be a constant for two identical materials at a given temperature). b) What is the...
2.4 For a steel alloy it has been determined that a carburizing heat treatment of 5-h...
2.4 For a steel alloy it has been determined that a carburizing heat treatment of 5-h duration will raise the carbon concentration to 0.45 wt% at a point 2.5 mm from the surface. Estimate the time necessary to achieve the same concentration at a 5.0-mm position for an identical steel and at the same carburizing temperature. Dt 2 2. 2. 2.
Current Attempt In Progress For a steel alloy it has been determined that a carburizing heat treatment of 17...
Current Attempt In Progress For a steel alloy it has been determined that a carburizing heat treatment of 17 h duration at 700'C will raise the carbon concentration to 0.39 wt at a point 3.9 mm from the surface. Estimate the time necessary to achieve the same concentration at a 7.7 mm position for an identical steel and at a carburizing temperature of 1030°C. Assume that Dois 3.1 * 10 m/s and Q, is 103 kJ/mol. e Textbook and Media...
2. On the next two pages are two identical images of the surface of carbon steel....
2. On the next two pages are two identical images of the surface of carbon steel. Using these two images, answer the following questions: (total = 60pts) a) What is the average grain size, in micrometers of the carbon steel sample? Show your work. (20pts) b) What is the percent carbon of this sample? What type of steel is this? Give the AlSi code. (20pts) c) What type of heat treatment would you guess this steel has undergone and what...
6. (10) For a steel alloy at 900'C, it has been determined that a carburizing heat...
6. (10) For a steel alloy at 900'C, it has been determined that a carburizing heat treatment of 8 hours will raise the carbon concentration to 0.35 W% at a point 0 mm from the surface. If the same steel is left in the furnace for 150 hours, to what depth below the surface will there be a carbon concentration of 0.35 wt%? Must show work and support any assumptions. Do = D exf toRT 10
6. (10) For a...
A heat treatment process that is used to harden steel components is examined. The process has...
A heat treatment process that is used to harden steel components is examined. The process has four parameters. Which parameter(s) have the greatest impact on the hardness of steel components? Which parameter(s) have the least impact on the hardness of steel components? Why? (Please show all necessary calculations) Parameter Number Parameters Level 1 Level 2 1 Temperature (C) 750 900 2 Cooling time (s) 50 300 3 Carbon Contents (Wt%c) 1 6 4 CO2 Concentration (%) 7 25 OA is...
3) Experience has shown that the greater the resistance to impact the quality the quality of the steel is better. The characteristics of the steel before applying the heat treatment indicate that the...
3) Experience has shown that the greater the resistance to impact the quality the quality of the steel is better. The characteristics of the steel before applying the heat treatment indicate that the average and standard deviation of the population are 20 tons and 9 tons respectively. A random sample of 36 steel specimens is extracted after the heat treatment is applied and the results indicate that the mean and the standard deviation of the sample are: 23 ton and...
(10 points) Problem S. For a steel alloy it has been determined that a carburizing heat...
(10 points) Problem S. For a steel alloy it has been determined that a carburizing heat treatment of 10-h ime necessary to achieve the same concentration at a 5.0-mm position for an identical steel and at the duration will raise the carbon concentration to 0.45 wt% at a point 2.5 mm from the surface. Estimate the same carburtzing temperature
Its a thermal treatment of metallic materials from
material science questions
QUESTION 9 a) Heat treatment schedule for three (3) thin samples of plain carbon steel containing different carbon concentration is summarized in Table Q9(a). Determine and sketch the resultant microstructure for each steel. Distinguish steel 1 from steel 3 with reference to their mechanical properties. Table 29(a) Steel wt% C Heating temperature Soaking time (°C) (minutes) Cooling process 1 0.5 950 60 Furnace cooled 2 0.8 800 60 Air...
3. For a steel alloy it has been determined that a carburizing heat treatment of 10 h duration will raise the carbon concentration to 0.45 wt% at a point 2.5 mm from the surface. Estimate the time necessary to achieve the same concentration at a 5.0 mm position for an identical steel and at the same carburizing temperature. [40]
2 a) It is given that a carburizing heat treatment of 10-hour duration of a steel alloy will raise the carbon content to 0.45 wt% at a point 2.5 mm away from the surface. Compute the time required to get the same concentration at a 5.0-mm position from the surface at the same carburizing temperature for an identical steel alloy (Hint: The diffusion coefficient will be a constant for two identical materials at a given temperature). b) What is the...
2.4 For a steel alloy it has been determined that a carburizing heat treatment of 5-h duration will raise the carbon concentration to 0.45 wt% at a point 2.5 mm from the surface. Estimate the time necessary to achieve the same concentration at a 5.0-mm position for an identical steel and at the same carburizing temperature. Dt 2 2. 2. 2.
Current Attempt In Progress For a steel alloy it has been determined that a carburizing heat treatment of 17 h duration at 700'C will raise the carbon concentration to 0.39 wt at a point 3.9 mm from the surface. Estimate the time necessary to achieve the same concentration at a 7.7 mm position for an identical steel and at a carburizing temperature of 1030°C. Assume that Dois 3.1 * 10 m/s and Q, is 103 kJ/mol. e Textbook and Media...
2. On the next two pages are two identical images of the surface of carbon steel. Using these two images, answer the following questions: (total = 60pts) a) What is the average grain size, in micrometers of the carbon steel sample? Show your work. (20pts) b) What is the percent carbon of this sample? What type of steel is this? Give the AlSi code. (20pts) c) What type of heat treatment would you guess this steel has undergone and what...
6. (10) For a steel alloy at 900'C, it has been determined that a carburizing heat treatment of 8 hours will raise the carbon concentration to 0.35 W% at a point 0 mm from the surface. If the same steel is left in the furnace for 150 hours, to what depth below the surface will there be a carbon concentration of 0.35 wt%? Must show work and support any assumptions. Do = D exf toRT 10
6. (10) For a...
3) Experience has shown that the greater the resistance to impact the quality the quality of the steel is better. The characteristics of the steel before applying the heat treatment indicate that the average and standard deviation of the population are 20 tons and 9 tons respectively. A random sample of 36 steel specimens is extracted after the heat treatment is applied and the results indicate that the mean and the standard deviation of the sample are: 23 ton and...
(10 points) Problem S. For a steel alloy it has been determined that a carburizing heat treatment of 10-h ime necessary to achieve the same concentration at a 5.0-mm position for an identical steel and at the duration will raise the carbon concentration to 0.45 wt% at a point 2.5 mm from the surface. Estimate the same carburtzing temperature
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