Select a steel and determine the thickness required if a factor-of-safety of 3 o

Question

Select a steel and determine the thickness required if a factor-of-safety of 3 on the ultimate tensile strength is to be maintained. Provide a heat treatment procedure, if needed. What is the stiffness of the beam at the point of application of the force and in the direction of the force? The Hall-Petch relationship describing the effect of grain size on yield strength is of the form : where sigma 0, k 0 are constants and d is the average grain size. For pure (99.995%) aluminum of grain size 1 micrometer, the yield strength is 12 MPa. For a single crystal, the yield strength is 5 MPa. Estimate the yield strength if grain coarsening as a result of high temperature exposure results in an average grain size of 10 micrometers. A 1 mm-thick sheet of 1080 steel is heated to 825 C, quenched to 560 C and held at 560 C for 1 min. What phase(s) would you expect at this point? A 1 mm-thick sheet of 1045 steel is heated to 825 C and quenched within 0.2 seconds to 200 C. What phase(s) would you expect now? What would be the expected minimum ultimate tensile strength

Explanation / Answer

yieeld str = 22.3 Mpa

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.