ME3150-01 Spring 2024-Quiz 3 Solution

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Carbonitriding is a case-hardening process in which a steel is heated in a gaseous atmosphere of such composition that carbon and nitrogen are absorbed simultaneously. Carbonitriding is a modification of the nitriding process. True False   Based upon the percent elongation of a tensile sample, a ductile engineering material is defined by a value equal to or greater than 5% and a brittle material is defined by a value less than 5%. True False

Please match Heat-Treated Steels with their hardness HB numbers, according to the charts shown below. a) SAE 1040 WQT at different Temperatures   b) SAE 4140 OQT at different Temperatures   c) SAE 4340 OQT at different Temperatures                                                               SAE 1040 WQT 1000                                                             SAE 4140 OQT 1000                                                             SAE 4140 OQT 1100                                                             SAE 4340 OQT 800 a. HB = 415 b. HB = 341 c. HB = 311 d. HB = 269

Fatigue data of steel is showed in the following stress-cycle curve.Write down the values of steel endurance limit and steel fatigue strength at 10^5 cycles in the spaces provided below.Steel Endurance Limit: _____ ksiteel Fatigue Strength at 10^5 cycles: _____ ksi

Google Chrome attempt.php?attempt=514085&cmid%=103093&page=3 My bookmarks v es > ENGG1023-2020S2 > General > Assessment#2- Lab 曲 me Calendar Badges All courses A Brinell hardness measurement of 650 HBN, using a 10-mm-diameter indenter and a 2950 kg load on an aluminum plate, Determine the indentation diameter. O a. 2.683 mm O b. 2.836 mm O c. 2.368 mm Od. 2.386 mm Finish attempt search TOSHIBA F5 F6 F7 F8 F9 F10 F11 F12 & 15 6 7 01 7 V 9.

Select All the correct statements from below.  a. If the averaged distance between partial dislocations for material A observed under TEM is smaller than material B, the estimated stacking fault energy of material A is lower than material B. b. K_IC is a material property that doesn't change with testing conditions c. The main difference between high cycle fatigue and low cycle fatigue is the difference in the number of cycles to failure d. A negative R value in fatigue test indicate the minimum stress is compressive in nature

1 / 8 100% 1. Specify a suitable aluminum casting alloy for a bar with square cross- section. Length of one side of the cross-section is 50 mm. The bar is subjected to an impact loading with a tensile force of 60 kN. MON 22 AC tv Aa

please can you assist me in answering the question i have added in the images. many thanks.

UeM Page 10 of 14 OUTCOMES- Discussion Answer ALL the questions: 1. A Charpy V-notch specimen is tested by the impact-testing machine. In the test, the 15 kg hammer of arm-length 120 cm (measured from the fulcrum to the point of impact) is raised to 90° and then released. i. What is the potential energy stored in the mass (hammer) when it hit the specimen, in J? i. After fracture of the specimen, the hammer swings up to 45°. What is the potential energy at this point, in J? iii. How much energy lost during impact (toughness of specimen), in J?

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Stuck need help! Problem is attached. please view attachment before answering.  Really struggling with this concept. Please show all work so I can better understand ! Thank you so much.

Question 8. The following figure represents three hardness-testing techniques of materials. Describe their specifications, how there are conducted and their potential applications? 8 - Shape of Indentation Test Indenter Side View Top View Load Brinell 10-mm sphere P of steel or tungsten carbide Vickers Diamond 136° microhardness ругamid Rockwell and 60 kg) 100 kg } Rockwell 150 kg) Diamond 120° superficial cone: s - in.- diameter Rockwell 15 kg 30 kg } Superficial Rockwell 45 kg) steel spheres

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A-10 Typical properties of carbon and alloy steels. Ultimate strength, s, Yield strength, s, Percent Material SAE no. Condition ksi MPa ksi MPa elongation 1020 Annealed 57 393 43 296 36 1020 Hot rolled 65 448 48 331 36 1020 Cold drawn 75 517 64 441 20 1040 Annealed 75 517 51 352 30 1040 Hot rolled 90 621 60 414 25 1040 Cold drawn 97 669 82 565 16 1040 WQT 700 WQT 900 127 876 93 641 19 1040 118 814 90 621 22 1040 WQT 1100 WQT 1300 107 738 80 552 24 1040 87 600 63 434 32 1080 Annealed 89 614 54 372 25 1080 OQT 700 OQT 900 OQT 1100 OQT 1300 189 1303 141 972 12 1080 179 1234 129 889 13 1080 145 1000 103 710 17 1080 117 807 70 483 23 1141 Annealed 87 600 51 352 26 1141 Cold drawn 112 772 95 655 1141 14 OQT 700 OQT 900 OQT 1100 OQT 1300 193 1331 172 1186 1141 9 146 1007 129 1141 889 15 116 800 97 1141 669 20 94 648 68 469 28 4140 Annealed 95 655 60 4140 414 OQT 700 OQT 900 OQT 1100 OQT 1300 231 26 4140 1593 212 1462 187 1289 12 4140 173 1193 147 1014 15 4140 131 903 118 18 814 101 5160 696…

The information from Young's Modulus A. Stress B. Strain C. Compression D. Stiffness What is 'strength' mean for metal in material selection's Strength- Density chart? A. Yield strength B. Compressive strength C. Tear strength D. Tensile strength Which specific objective and constrain is related to material's index M = E'/p ? A. Minimum weight and strength B. Strength and fatigue C. Minimum weight and stiffness D. Modulus and stiffness

You are required to select a suitable material for the shaft of a steam turbine for a power generating plant. After screening out the materials, the followings are the most suitable candidates. a) Identify the possible failure mode of the shaft and therefore what is the main mechanical ?property requirement b) You need to choose one of the following alloys with full justification Melting temperature("C) Young's Modulus (GPa) Alloy Candidate Grain size (um) 25 Alloyl Alloy 2 Alloy 3 Alloy 4 1395 120 1410 108 12 1400 1295 128 127 32 33

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A mild steel material is subjected to a Brinell hardness test with an applied force of 8145 N using a hardened steel ball indentor of 10 mm and it is found that the Brinell Hardness Number as 966. Determine the surface area of indentation and indentation diameter

For the manufacture of a pipe wrench, would you select: 1000 C Y (austentite) a +y Y + cementite a + Fe,C (ferrite + cementite) 500'C 0% 1.4% weight % carbon Fe-0.4%C steel Fe-0.4C steel and case hardened Fe-1.2%C steel None of the above temperature

How would you callout magnesium in an engineering drawing note? I want to call out Magnesium AZ31B, plate, AMS4376. This is what I have so far: Notes: 1. Material: MAGNESIUM ALLOY, PLATE, UNS M11311 (AZ31B), PER AMS4376, CONDITION -H26 Is this correct?

Question 5: Following is tabulated data that were gathered from a series of Charpy impact tests on a tempered 4140 steel alloy. Temperature (°C) 100 75 50 25 0 -25 -50 -65 -75 -85 -100 -125 -150 -175 Impact Energy (J) 89.3 88.6 87.6 85.4 82.9 78.9 73.1 66.0 59.3 47.9 34.3 29.3 27.1 25.0 (a) Plot the data as impact energy versus temperature. (you can use Excel or other software). (b) Determine a ductile-to-brittle transition temperature as that temperature corresponding to the average of the maximum and minimum impact energies. (c) Determine a ductile-to-brittle transition temperature as that temperature at which the impact energy is 70 J.

The hardness of a material can be an indicator of its resistance to? Select one: O a. indentation O b. fatigue O c. bending O d. None of these options O e. elongation

Question 21 Ability of material to undergo permanent deformation without fracture is called A. Plastic deformation O B. Stiffness C. Toughness D. Elastic deformation A Moving to another question will save this response. e l: 34°C aolo claw ENG 4) . hp