***

(1) List and explain the major mechanisms by which radiation degrades practical performance of structural materials at low temperature, intermediate temperature and high temperature.

(2) What causes metal passivity?  List and explain the forms of corrosion attack.

(3) What is the contextual difference between yield strength, creep strength and fracture strength (all in unit of MPa)?

(4) What is the key difference between powder metallurgy process and casting? What is ODS steel? What are the key advantages of ODS steel in the nuclear power context?

***