Determine the yield strength sy and the ultimate strength su of the A36 steel either from Materials Science class book/notes, or by researching over the internet.

12. What are is an impact tests. Sketch the impact testing machine setup and explain the basic principle of toughness determination from it. What is DBTT? sketch the impact energy vs temperature curve for plain carbon steel and discuss why do many materials become brittle at low temperatures.

As an R&D engineer, your input is requested to design an enhanced device that will be permanently implanted to repair the load-bearing function of a joint. Details on the candidate metals are presented here: Material SS 316 type Pure Ti Density (p) Yield stress (g/cm³) (MPa) 8 4.5 Ti6A14V 4 (F136) 190 140 795 Maximum elongation (%) 40 15 10 Elastic modulus (GPa) 190 110 114 Lo Shess leve O What force can each of the materials carry without permanent deformation? Which one offers better properties as a load-bearing implant? Explain. Describe the primary consequences of choosing the wrong material; consider in your answer the effect of density, yield stress, elongation, and Young's modulus on the implant's performance.

Write an paragraph on each of the following including information/data about the general composition, properties, uses, applications and their reasons:      Mild steel 1060 steel 304 stainless steel HSLA steel Gray cast iron