According to the lead-tin phase diagram below, what is the maximum solubility of lead in tin? a) 2.2 wt% b) 18.3 wt% c) 81.7 wt% d) 97.8 wt%

) Which is NOT a way to change the number of phases in a phase diagram? a) Change composition b) Change temperature c) Change pressure d) Change time duration

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27 - Which of the hardness indications belongs to the knoop hardness measurement method?    A) 61 HB 0,02  B) 61 HRC 0,02  C) 61 MVH 0,02  D) 61 HV 0,02  E) 61 HK 0,02