The yield strength for an alloy that was an average grain diameter of 5.4 x 102...
The yield strength for an alloy that has an average grain diameter of 5.7 × 10-2 mm is 140 MPa. At a grain diameter of 7.3 × 10-3 mm, the yield strength increases to 277 MPa. At what grain diameter, in mm, will the yield strength be 228 MPa? d = mm We were unable to transcribe this imageThe yield strength for an alloy that has an average grain diameter of 5.7 x 10-2 mm is 140 MPa. At a...
An uncold-worked brass specimen of average grain size 0.008 mm has a yield strength of 151 MPa. Estimate the yield strength of this alloy (in MPa) after it has been heated to 600°C for 1220 s, if it is known that the value of ky is 11.5 MPa-mm 1/2. The Animated Figure 7.25 may be helpful. MPa (The tolerance is +/- 10%.) Click if you would like to Show Work for this question: Open Show Work
S. (2 Marks) An alloy with an average grain diameter of 35 um has a yield strength of 163 Mpa. and when it undergoes strain hardening, the grain diameter reduces to 17 um with an increase in yield strength to 192 MPa. If the coarseness of the alloy desired for a particular application cannot exceed 12 um, what will be the expected yield strength?
An uncold-worked brass specimen of average grain size 0.008 mm has a yield strength of 163 MPa. Estimate the yield strength of this alloy (in MPa) after it has been heated to 600°C for 1500 s, if it is known that the value of ky is 12.7 MPa-mm 1/2. The Animated Figure 7.25 may be helpful. MPa [The tolerance is +/- 10%.]
Problem 4 The yield point of a steel that has an average grain diameter of 21.3 um is 202 MPa. At a grain diameter of 7.4 um, the yield point increases to 286 MPa. At what grain diameter will the yield point be 315 MPa?
ive already gotten 2 wrong answers this is my last attempt please be correct!!!!!!!!!!!!!! Incorrect Consider the brass alloy the stress-strain behavior of which is shown in the Animated Fioure 2.12. A cylindrical specimen of this alloy 15 mm in diameter and 214 mm long is to be pulled in tension Calculate the force necessary to cause 0.00788 mm reduction in diameter. Assume a value of 0.35 for Poisson's ratio. 26507.1 the tolerance is +/-2% Click if you would like...
Can someone help me with this materials problem? Problem 7.23 Your answer is partially correct. Try again. Consider the brass alloy for which the stress-strain behavior is shown in the Animated Figure 7.12. A cylindrical specimen of this material 10.1 mm (0.3976 in.) in diameter and 98.8 mm (3.890 in.) long is pulled in tension with a force of 10200 N (2293 lbr). If it ls known that this alloy has a value for Polsson's ratio of 0.35, compute (a)...
The average grain diameter for some metal alloy was measured as function of time at 650°C, which is tabulated below at two different times: Time (min) Grain diameter (mm) 4.5 x 10-2 6.7 x 10-2 22 82 (a) What was the original grain diameter? T0.04057 mm mm (b) What grain diameter would you predict after 153 min at 650°C? 0.1144 mm Assumen - 2.
Question 3 10 pts The lower yield point for an iron that has an average grain diameter of 40um is 100 MPa. At a grain diameter of 6.4μm, the yield point increases to 160MPa At what grain diameter (in um)will the lower yield point be 128.8 MPa? (round to two decimal places)
Chapter 15, Practice Problem 15.17 The tensile strength and number-average molecular weight for two poly(methyl methacrylate) materials are as follows: Tensile Strength (MPa) Number-Average Molecular Weight (g/mol) 52 30,000 130 50,000 Estimate the tensile strength at a number-average molecular weight of 37,000 g/mol. 247 MPa the tolerance is +/-3% Click if you would like to Show Work for this question: Open Show Work