1. Rolling 2. Stages of Heat Treatment
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- Please choose the correct answer for each question: 1. Activity of a gas in equilibrium with solution is ______? A. its partial pressure; B.1.0; C. its molar concentration; D. 0.0 2. During a sorption procedure, the substance transferred from the gas or liquid phase to the solid phase is called ______ A. sorbent; B. sorbate; C. partition; D. none of the above 3. When a chemical has a lower KOW, it is more ______ A. hydrophobic; B. hydrophilic; C. more absorbable; D. less absorbable 4. _____ occurs on the adsorbent surface A. Adsorption; B. Sorption; C. Absorption; D. Adsorption and absorption 5. _____ addresses the change in the amount of a substance of interest with time. A. The equilibrium approach; B. The kinetic approach; C. Henry’s Law; D. Freudlich isotherm equationExample 2: NaCl equivalent concentration 20,000 ppm. Temperature of %3D concentration 75°F. Find the Resistivity of the solution.Q.1. For hypereutectoid plain carbon steel (select %C content yourself), determine the phases that are present, the compositions of these phases, and the percentages or fractions of the phases. Make schematic sketches of the microstructure that would be observed for conditions of very slow cooling at the following temperatures: a) Just above the austenite transformation temperature b) The austenite transformation temperature 10°C c) The eutectoid transformation temperature +10°C d) The eutectoid transformation temperature 10°C
- i need clear ans and solve very very fast in 20 min and thank you | DYBALA When mixing with water, the calcium silicates react with water molecules to form ----and Calcium silicate hydrate and calcium hydroxide. Calcium silicate hydrate and Ettringite. Calcium silicate hydrate and Portlandite. Calcium aluminate hydrate and calcium hydroxide.MEHCANICS OF RIGID BODIES. Show complete solutionFor steel: E = 200 x 109 N/m3 α = 11.7 μm/(m-°C) For aluminum: E = 70 x 109 N/m3 α = 23 μm/(m-°C) SHow your complete solution.
- What temperature is required to obtain 0.4%C at a distance of 0.3 mm beneath the surface of a 0.22% C steel in 2h, when 1.1% C is present at the surface? Assume that the iron is FCC. (Please see figure 5.12 below for diffusion coefficient data. Please use your notes for a table of erf() function values Diffusion coefficient D (cm²/s) ܐ ܐ ܐ ܐ 10- 10-5 10- 10-10 10-11 10-12 10-13 10-14 10-15 Temperature (°C) 2000 1500 1200 1000 900 800 700 600 Cin graphite Mg in MgO Ca in Cao H in FCC iron C in FCC iron Fe in FCC iron Fe in BCC iron H in BCC iron C in BCC iron Fe in FeO 500 5 6 7 8 9 10 11 12 13 104 T(K) Figure 5-12 The diffusion coefficient D as a function of reciprocal temperature for some metals and ceramics. In this Arrhenius plot, D represents the rate of the diffusion process. A steep slope denotes a high activation energy.Whiteware, porcelain, bricks and bio-ceramics are an example application derived from ceramic materials and undergoes thermal treatment. Briefly explain three (3) thermal treatment for ceramic materials.An aluminum pipe has a length of 54 m at a temperature of 10°C. An adjacent steel pipe at the same temperature is 8 mm longer. At what temperature will the aluminum pipe be 24 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for the aluminum is 22.5x10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C.
- d) Calculate total hardness in ppm of a solution of both 55 mg/L Al2(SO4)3 and 45 mg/L Mg(NO3)2.Mention the chemical reactions that take place in Wellman-Lord (W-L) regenerative process.Based on the Basics of HMA Mix, in a mixture, too will lead to not having enough room for binder to move and therefore to the surface and