1.IntroductionThe rhombohedral compoundSm<sub>2</sub>Fe<sub>17</sub>N<sub>x</sub>(x=1~3)is currently attractinginterest due to its promise as a new perma-nent magn
The correlation between the creep rupturebehaviour and the stacking fault energy of matricesof γ′strengthened superalloys has been studied dur-ing constant lo
Hf lowers the incipient melting temperatureof superalloy. As carbon content in Hf-bearingalloy decreases, the incipient melting temperaturedrops furthey. PD ing