Question 1A certain tool steel consists of the following chemical composition (typicalanalysis in %):ElementCSiCrМоV%1.000.908.001.101.601.1 Name some of the most important properties of this tool steel. Providereasons for your answers.1.2 For which manufacturing applications would this tool steel be most suitable for?Provide reasons for your answers. Question 2The extruder head in a fused-deposition modelling machine has a diameter of1.0 mm and produces layers that are 0.75 mm thick. Assume there is a 1second delay between each layers and the porosity for the support material is50%. The extruder head and polymer extrudate velocities are 30 mm/s.SECNON A-ACritical surface3,00Critical surface22.5042.0040.00Figure 1: Dimensions of product to be produced through the FDMprocess2.1 Show with a sketch the most suitable build orientation for the product which willresult in the best surface finish of the critical surface (shown in Figure 1), andthe shortest manufacturing time. Provide reasons for the selection of theorientation.2.2 Estimate the manufacturing time of the product (shown in Figure 1), through theFDM process, using the orientation selected in Question 2.1.2.3 If the component is produced through the SLS process using a nylon material,how would this additive manufacturing process influence the build orientationand manufacturing time? Stipulate all assumptions made.00'0€42.0000219,5000

1. 1.1 - The given steel has good hardness and strength because of presence of carbon and…

Answered: Question 1 A certain tool steel…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A certain tool steel consists of the following chemical composition (typical analysis in %): Element Cu 1.00 Mn Ni 3.00 Al 0.15 1.5 1.00 1.1 Name some of the most important properties of this tool steel. Provide reasons for your answers. 1.2 For which manufacturing applications would this tool steel be most suitable for? Provide reasons for your answers. Question 2 Grade 304 stainless steel is used to manufacture a component for an industrial processing plant. Which two thermoset materials will you recommend as an alternative material for the manufacturing of the component? Provide reasons for your recommendation.
According to Reference [1], alloys of nickel (Ni) and tungsten (W) are can form substitutional solid solutions up to approximately 11 at% W. Consider two different alloy compositions: Ni-5W (5 at% W) and Ni-10.5W (10.5 at% W). A. Which composition should be more ductile? B. Which composition should be stronger? C. Using the oy~ C¹/2 relationship from the lecture slides, how many times larger should the yield strength be for Ni-10.5W compared to Ni-5W? D. Where should the tungsten atoms sit relative to the dislocation on or opposite the side with the extra half-plane? You will need information from Appendixes of the textbook.
1. Why does the tensile strength of steel, which contains only austenite at room temperature, differ fromsteel that shows only pearlite in its microstructure? Give two important reasons for the difference. 2. What general prerequ_isites exist for the formation of martensite in steel? 3. What is an isothermal transformation of a material in the solid state condition? 4. Draw a typical isothermal transformation diagram for plain .carbon eutectoid steel and indicate thevarious decomposition products expected by simple diagrammatic drawing.
Composition lat% N 40 60 100 1600 2800 1500 1453 C 2600 Liquid 1400 Solidus line Liquidua line 2400 1300 1200 2200 1100 1085 C 2000 1000 20 40 100 Composition (wt N (NO What is the amount for each phase in 1kg of a 50% Ni-50% Cu alloy at temperatures of 1400, 1300, or 1200 degrees C for point A and point B? Temperature ('C) Temperature ("F)
Determine the tensile strength, yield strength and percentage elongation (% ductility) for an iron- carbon alloy with 0.76 wt % carbon composition. O Yield strength - 60000 psi : Tensile strength - 110000 psi: Ductility - 15% O Yield strength - 130000 psi : Tensile strength - 68000 psi;: Ductility - 10% O Yield strength - 68000 psi : Tensile strength - 130000 psi; Ductility - 10% O Yield strength 50000 psi: Tensile strength - 100000 psi: Ductility - 20% O Yield strength - 86000 psi : Tensile strength 150000 psi: Ductility 25%
The Fe-C phase diagram is given: How much of the Primary phase for a Fe-0.55% C alloy forms at 500°C? What is the weight fraction of the total cementite for the same alloy at 500°C? Composition (at% C) 5 10 15 20 25 1600 1538°C 1493°C L 1400 2500 1394°C y+L 1200 1147°C 2.14 4.30 Y, Austenite 2000 1000 912°C y+ Fe3C 800 1500 727°C 0.76 0.022 600 `a, Ferrite a + Fe3C Cementite (Fe3C) 1000 400 1 4 6. 6.70 (Fe) Composition (wt% C) Temperature (°C) Temperature (°F)
QI/ Draw a thermal equilibrium diagram for the binary alloy system (Si –Au), from the following data:- a- Si melts at 1414 °C, and Au melts at 1064 °C , and identify all phases are present in the diagram. b- Eutectic is formed at 360°C containing 20 Wt% Si -80 Wt% Au . c- Determine the amount of each phase for the alloy which consist 60 Wt% Si- 40Wt % Au at 1200 °C and 800 °C ,then determine the amount of eutectic at 200 °C?
2) There is an aluminum-copper alloy. The phase diagram is given below. What heat treatment do you apply? Using this graph, how is it possible to increase the strength and hardness of this alloy? Consider this question within the scope of heat treatments. Composition (at % Cu) 10 20 30 700 1200 600 L a+ L 0 +L 1000 a 500 (CuAl,) a + 0 800 400 600 300 10 20 30 40 50 (AI) Composition (wt% Cu) Temperature (°C) Temperature (°F)
800 A Eutectoid temperature H 1400 700 A H 1200 600 1000 500 B 800 400 A 300 600 M(start) 200 M + A 50% 400 M(50%) M(90%) 100 200 10-1 1 10 102 103 104 105 Time (s) Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the final microstructure and approximate amount of each. Assume a small specimen has been held long enough to have achieved a complete and homogeneous austenitic structure prior to treatment. Sample (1): Quickly cool specimen from 800°C to 575°C, hold for 10 s, then quench to room temperature. Sample (2): Quickly cool specimen from 800°C to 500°C, hold for 100 s, then quench to room temperature. O after treatment, sample 1 is 50% pearlite, 50% austenite O after treatment, sample 2 is bauxite O after treatment, sample 1 is 25% pearlite O after treatment, sample 2 is bainite O after treatment, sample 2 is austenite O None of the answers is correct. O after treatment, sample 2 is coarse pearlite O after treatment, sample 1 is…
HOME WORK For 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. y+ Fe;C a + FezC 6.70 0.35 0.76 Composition (wt % C) etallurgy | Bassim Sh. Bachy. Temperature
For a Fe-C alloy with a eutectoid composition, an austenite was rapidly cooled down to 450°C, held for 10 sec, and quenched to room temperature. What is the final microstructure based on its TTT curve? Amount Temperature of Transformation, C 700 600 500 400 300 200 Ae₂! Ae₁ Austenite unstable Ms. 10 10² 103 104 105 seconds Austenite stable 50%- 100 MF TELEP P 100% completed F+B Coarse Pearlite - Fine Pearlite -Upper Bainite (Feathery) Lower Bainite → Martensite + Bainite Martensite 1 1sec 1 min 1hr Transformation Time (Log. Scale) O a. 50% bainite and 50% martensite O b. 50% austenite and 50% bainite O c. 100% bainite O d. 100% martensite Finer Lamellac Bainitic Pearlitic Austenite Fine more Acicular Rapid Etching Martensitic cicular, Slow Etching V.P.H. 210 320 450 700 750
Calculate the weight fraction for phases at point B? what are those phases? Is there any eutectic rection? How many phases are present in this diagram? Cu-Ni system T(°C) TA 1300 -L (liquid): A tie ļine liquidus L +a Тв EB solidus (solid) 1200 TD ID 20 3032 35: 4043 50 Ca wt% Ni

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