Official Answer
Answer
A286 superalloy ne na ƙarfe-tushen ƙarfe wanda ke kiyaye ƙarfi mai ƙarfi kuma, mahimmanci, tauri mai ƙarfi a yanayin yanayin cryogenic zuwa -196 ° C (77K). Ba kamar daidaitattun ƙarfe na carbon ko wasu bakin ƙarfe na martensitic waɗanda ke jurewa canjin ductile-to-gaggawa (DBT), A286 ya kasance austenitic. Matsakaicin haɓakar haɓakar thermal kuma yana da ɗan kwanciyar hankali. A cikin ƙirar bazara na cryogenic, haɓakar Modulus na Elasticity $ E $ a ƙananan yanayin zafi dole ne a lissafta; $E$ na iya karuwa da kashi 5-10%, ma'ana ƙimar bazara $k$ zai yi girma fiye da zafin daki. Yanayin hazo mai taurin A286 (shekaru a 1300-1400F) yana tabbatar da cewa zai iya jure matsanancin damuwa da ake buƙata a cikin ƙaramin hatimin cryogenic.
