Strain and Work Hardening in Materials
1.Which of the following does not improve due to strain hardening?
2.An aluminum plate has been rolled from 40 mm to 10 mm (thickness). Assume that width remains same. The % cold working (% CW) is:
3.Given different samples are cold rolled to x % deformation; Sample A: 20 %, Sample B: 30 %, Sample C: 40 %, Sample D: 50 %. Which of the following is correct?
4.Which of the following statements is correct w.r.t. strain hardening?
5.Consider an aluminum plate has been subjected to 60 % cold rolling. Rectangular Tensile specimens (thickness: 2 mm and width: 5 mm) were cut from the rolled plate and then subjected to tensile test. If the maximum load noted is 750 N, what would be the ultimate tensile strength?