Homework Answers
The typical carbon content of cast iron is 2-4 %
The size of carbon atom is twice the size of tetrahedral voids and they don't fit into the voids such that it results into a strong strain field.
So it exceed solubility.
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Estimate the typical carbon content of cast or ductile iron. Does that carbon fit concentration fit...
Prob 7 Estimate the typical carbon content of cast or ductile iron Does that carbon fit...
Prob 7 Estimate the typical carbon content of cast or ductile iron Does that carbon fit concentration fit within the grain structure or does it exceed solubility?
Prob 7 Estimate the typical carbon content of cast or ductile iron. Does that carbon fit...
Prob 7 Estimate the typical carbon content of cast or ductile iron. Does that carbon fit concentration fit within the grain structure or does it exceed solubility?
Cast iron just like steel has wide applications. It is an alloy with carbon content in...
Cast iron just like steel has wide applications. It is an alloy with carbon content in excess of about 2%C (usually between 2.5 and 4.3%C) and Si content in excess of 0.5%. The microstructure of cast iron after solidification influences the final properties of the casting From the iron carbon phase diagram above answer the following questions: a) Calculate the volume fraction of ledeburite (eutectic component) present in the alloy containing 3%C after solidification under: i) equilibrium conditions ii) fully...
A common automotive grade ductile iron casting targets the carbon equivalency to 4.54. If the desired...
A common automotive grade ductile iron casting targets the carbon equivalency to 4.54. If the desired carbon content is 3.55 to 3.70% carbon, what is the range of silicon required to produce this type of ductile iron? How much of this alloy is eutectic?
2. What is the carbon content of 1020 steel? How does changing the carbon content affect...
2. What is the carbon content of 1020 steel? How does changing the carbon content affect the properties of steel? To make a material such as steel more ductile what changes can be made to its chemical composition? (15 points) 3. What are several common point defects in metals, list 2 and provide a brief description of them? Specific to steel what is the main type of point defect and why is it important to the behavior of steel? (15...
The fatigue data for a ductile cast iron are given as follows: (7 pts Stress Amplitude...
The fatigue data for a ductile cast iron are given as follows: (7 pts Stress Amplitude IMPa (ksi 248 (36.0) 236 (34.2) 224 (32.5 213 (30.9) 201 (29.1) 93 (28.0) 193 (28.0 193 (28.0) Cycles to Failure I x 10 3 x 10 1 x 10 I x 107 3 x 107 3 x 10 a) Make an S-N plot (stress amplitude versus logarithm cycles to failure) using these data. b) What is the fatigue limit for this alloy? (c)...
A specimen of ductile cast iron having a rectangular cross section of dimensions 4.8 mm x...
A specimen of ductile cast iron having a rectangular cross section of dimensions 4.8 mm x 15.9 mm is deformed in tension. Using the load-elongation data tabulated below, complete problems (a) through (e) a) Plot data as engineering stress versus engineering strain (Use the Excel if possible, and show the graph on a separate sheet, or copy on the bottom.) Load Length N mm 0 75 75.025 4,740 b) Determine the 0.2% offset yield strength; (Plot the data in a...
According to the book 'Product Design for Manufacture and Assembly', over what % percentage of the...
According to the book 'Product Design for Manufacture and Assembly', over what % percentage of the final product costs are typically determined during design phase? [2 marks] A. 40% B. 50% C. 60% D. 70% E. 80% What % percentage of carbon is used in AISI 1020 steel? 0.1020% 0.2% 2.0% 20% 10.2% None of the above Which one of the following methods does NOT strengthen a single-phase metal? precipitation hardening strain hardening annealing (recovery, recrystallization, grain growth) grain size...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as i...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as indicated by these approximate standard free-energy changes in blood: reaction A:reaction B:Hb+O2Hb+CO⟶⟶HbO2,HbCO, ΔG∘=−70 kJ/mol ΔG∘=−80 kJ/mol Part A Estimate the equilibrium constant K at 298 K for the equilibrium HbO2+CO⇌HbCO+O2
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as i...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as indicated by these approximate standard free-energy changes in blood: Hb+O2=HbO2 Delta G= -70 kJ/mol Hb+CO=HbCO Delta G= -80 kJ/mol Part A Estimate the equilibrium constant K at 298 K for the equilibrium HbO2+CO==HbCO+O_2
Prob 7 Estimate the typical carbon content of cast or ductile iron Does that carbon fit concentration fit within the grain structure or does it exceed solubility?
Prob 7 Estimate the typical carbon content of cast or ductile iron. Does that carbon fit concentration fit within the grain structure or does it exceed solubility?
Cast iron just like steel has wide applications. It is an alloy with carbon content in excess of about 2%C (usually between 2.5 and 4.3%C) and Si content in excess of 0.5%. The microstructure of cast iron after solidification influences the final properties of the casting From the iron carbon phase diagram above answer the following questions: a) Calculate the volume fraction of ledeburite (eutectic component) present in the alloy containing 3%C after solidification under: i) equilibrium conditions ii) fully...
The fatigue data for a ductile cast iron are given as follows: (7 pts Stress Amplitude IMPa (ksi 248 (36.0) 236 (34.2) 224 (32.5 213 (30.9) 201 (29.1) 93 (28.0) 193 (28.0 193 (28.0) Cycles to Failure I x 10 3 x 10 1 x 10 I x 107 3 x 107 3 x 10 a) Make an S-N plot (stress amplitude versus logarithm cycles to failure) using these data. b) What is the fatigue limit for this alloy? (c)...
A specimen of ductile cast iron having a rectangular cross section of dimensions 4.8 mm x 15.9 mm is deformed in tension. Using the load-elongation data tabulated below, complete problems (a) through (e) a) Plot data as engineering stress versus engineering strain (Use the Excel if possible, and show the graph on a separate sheet, or copy on the bottom.) Load Length N mm 0 75 75.025 4,740 b) Determine the 0.2% offset yield strength; (Plot the data in a...
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