The iron-carbon alloy that has carbon more than 2.1 wt.%C is called (cast iron / stainless steel / structural steel).
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The iron-carbon alloy that has carbon more than 2.1 wt.%C is called (cast iron / stainless steel / structural steel).
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- An AISI 4340 alloy steel contains .43 percent or 43 points of the element carbon and solution. True or false.By using the Iron - Carbon diagram that you have. Find 5 of the following. 1- The microstructure of Cast iron with 3% C. 2- The Liquid and Austinite percent with chemical composition for cast iron with 2% C at 1300°C 3- Find the melting point and microstructure of steel with 0.83% C 4- Define the temperature range for Acm temperature. 5- Find the Ac3, Acl temperature and microstructure of steel with 0.4 % C 6- Find the Eutectic, Eutectoid temperature and microstructure of cast iron with 4.3% CA plain carbon steel contains 45 wt.% proeutectoid ferrite. What is the average carbon content in weight percent?
- 1. What temperature does a Fe-C metal with less than 4 weight percent C melt at? 2. What temperature does a Fe-C metal with less than two weight percent C melt at? 3. What climate causes delta-Fe to change into gamma-Fe? 4. What percentage of proeutectoid Fe 3C is present in a steel with 1.15 wt% carbon at 727.1 o C?a) The figure below shows three equilibrium structures that occur in an iron-carbon alloy, rank these from hardest to softest. b) The microstructure of an iron-carbon alloy consists of proeutectoid ferrite and pearlite. Relative mass to proeutectoid ferrite is 0.2 and pearlite is 0.80. How much carbon does this alloy contain?Specify the number of degree of freedom for the following alloys. Refer to the pictures below. A) 95 wt% Ag-5 wt% Cu at 780C B) 2.5 wt% C-97.5 wt% Fe at 1000C
- What is the composition, in at. %, of an alloy that contains 35g of Cu and 42g of Zn Acu= 63.55g/molAzn=65.41g/molpart a) A carbon-Fe alloy containing 1.5 wt% C is cooled down to 800°C. Determine what phases are present, the fraction of each phase present, and the composition of each phase. part b) A carbon-Fe alloy containing 1.5 wt% C is cooled down to 400 Celsius. Same as above, determine what phases are present, the fraction of each phase present, and the composition of each phase. use the picture below Irn-Iron Carbide Phase Diagram 1600 8 (Ferrite)N538°C 1100 2000 1495°C Liquid 1000- 1400 1394°C 1200 Y (austenite) 2500 y +liquid 1148°C 2.11% 900 Y+ Fe,C 4.30% 2000 1500 800 1000 Y+ cementite Detail view 727°C a+y 700 912°C 727°C a+y 80에 0.77% 0.022% 1500 Ferrite 600 600 a + cementite -Fe,C 1000 α (errte) 1000 Cementite (FeC) - 500 400 a + Fe,C 1 Carbon (% by weight) 6 6.67 0.5 1.0 Carbon (% by weight) 1.5 2.0 2.5 (a) (b) FIGURE 5.4 (a) The iron-iron carbide phase diagram. (b) Detailed view of the microstructures above and below the eutectoid temperature of 727°C (1341°F). Because of the…Percentage of carbon of medium carbon steel,high carbon steel,lower carbon steel.
- An engineer is making determinations on the best alloy of steel to use in cables for a cable-stayed bridge. The investigator’s tool is a tensile testing instrument which can measure the strength of the alloys by slowly increasing the load on the cable to the point where the cable breaks and breaking point value (amount of weight on the cable when it fails) can be accurately measured. The investigator also is interested in determining the amount of deformation of the cable (how much it stretches under load conditions which is also very important in structural considerations. The tests must be uniform and consistent to give the precision needed to make valid conclusions about the best alloy for the cables. On the line after the item, identify which type of variable it represents from (a) independent variable, (b) dependent variable, (c) control variable. 1) thickness of the cable _____________ 5) length of the cable _____________ 2) testing room temperature…1. four processes. 2. Fill out the blanks by labeling the phase regions. 3. Identify the Indicate an in- termediate compound, if any. 3. Temperature (°C) 1600 1400 1200 1000 800 600 400 1538°C 0 (Fe) -1493°C 1394°C 912°C y, Austenite 1 2 0.16 5 0,022 a, Ferrite A N 2.14 Composition (at% C) 15 10 3 1147°C L4 3 4 Composition (wt% C) 4.30 727°C Sketch the microstructure at A, label phases, figure out compositions. 20 Cementite (Fe3C). 5 6 25 6.702 By using the Iron - Carbon diagram that you have. Find 5 of the following. 1- Find the Eutectic, Eutectoid temperature of cast iron with 4.3% C 2- The microstructure of Cast iron with 3.5% C. 3- Find the melting point and microstructure of steel with 0.83% C 4- Define the temperature range for Acm temperature. 5- Find the AC3, Ac¡ temperature of steel with 0.45% C 6- The Liquid and Austinite percent with chemical composition for cast iron with 2.3% C at 1300°C