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

Q: d. Secant modulus at a stress of 62 ksi. e. Tangent modulus at a stress of 65 ksi.

A: Given data:- Stress - strain relationship shown in below;

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A: Solution Find the location of horizontal plastic neutral axis

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Q: Flow and spacing are inversely related O True O False

A: State true or false Flow and spacing are inversely related

Q: What is the Ix and Iy of the cross-section in mm4

A: Given: Required : Ix and Iy of the cross-section in mm4

Q: CORRECT ANSWER

A:

Q: 5-3[(4x-y)+2y]

A: The given expression is,

Q: Draw and label theV and M 15KN diagrams. Fill in the blanks. Find M- max and the equations for q. V,…

A: The beam is an important element in the construction of any structure or building. It resists…

Q: 150 25 40 185 25 75 50

A: To draw the front, top and side view of the given object. Given 3d object:

Alloys

An alloy is an admixture of two or more metals or a metal and a non-metal. Since ancient times, man has been using alloys. Alloying helps to retain the properties of the parent matter, such as hardness, strength, toughness, ductility and is corrosion-resistant. Copper alloys such as brass have antimicrobial properties that help to fight against (Coronavirus disease 2019) COVID-19 and other hospital-acquired infections. Some common alloys are brass, bronze, solder steel, etc. Most alloys have a lower melting point than their constituents. This is due to the presence of a nonmetal as one of the constituents that behaves as an impurity and restricts the raise of melting point.