Answer
Mubidukikije bya kirogenike (urugero, azote yuzuye kuri -196 C), imbaraga zumusaruro $ \ sigma_y $ nimbaraga zingutu zibyuma bitagira umwanda nka 302 cyangwa 316 byiyongera, ariko ihindagurika rigabanuka. The thrust load capacity formula $P_g = (D \cdot d \cdot \pi \cdot \sigma_y) / S_f$ suggests an increase in capacity. However, the risk of brittle fracture becomes the dominant failure mode. The safety factor $S_f$ must be increased from 2 to 4 to account for the reduced fracture toughness $K_{IC}$. Byongeye kandi, kugabanuka k'ubushyuhe bw'impeta ($ L = L_0 \ cdot \ alpha \ cdot \ Delta T $) bigomba kubarwa kugirango impeta itagabanuka cyane ku buryo ihambira ku mwobo cyangwa ikaguka ikava mu ishyamba kubera igipimo cyo gukonja gitandukanye hagati y'impeta n'inzu.
