5. [20 pts] Indicate whether the below are True (T) or False ( (F). () Heterogeneous nucleation is never observed in reality because nucleation happens randomly within the bulk of the transforming material. 1 I in order to obtain higher ductility steel, one needs to increase the amount of supercooling. ( ) Martensite formation requires extremely fast diffusion processes, 1. ITempering is performed to increase strength. 1 ) The higher the thermal conductivity of a steel, the higher its hardenability. 1) Adding additional alloying elements makes it harder to obtain Martensite. I I Continuous cooling causes easier Martersite formation. ( ) To reduce hardenability, one must switch from water to air as quenching medium. Complete the sentences below: i) Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation that falls from douds by dispersing substances into the air. it is used to increase the likelihood of precipitation. The logic behind cloud seeding is ii) The reason wity the Avrami plot has a decreasing slope after 50% transformation is