Wɔ nnɛyi mfiridwuma mu nneɛma a wɔyɛ mu no, nneɛma a wɔyɛ wɔ ɔhyew a ɛkɔ soro mu no yɛ adwuma yiye. Sɛ́ dade soronko a ebetumi akura ahoɔden ne ahoɔden mu wɔ ɔhyew a ano yɛ den ase no, dade a ɛyɛ dade-aduru a ɛko tia dade abɛyɛ ade titiriw wɔ ahoɔden, nnuru adwumayɛ, ahunmu, ne nea ɛkeka ho mu.Ne a ɛkorɔn a ɛkorɔn-temperature ahoɔden, oxidation a ɛko tia ne creep a ɛko tia no ma ɛyɛ ade a wɔpɛ ma nneɛma a ɛkorɔn{4}}temperature nnwinnade a wɔyɛ.
Mfaso titiriw a ɛwɔ metallurgical heat-esistant steel so no da ne alloy composition nhyehyɛe soronko no so. Ɛdenam nneɛma te sɛ chromium, nickel, ne molybdenum a wɔde ka ho so no, ɔhyew-a ɛko tia no betumi ayɛ oxide film a ɛyɛ den wɔ ɔhyew a ɛkɔ soro mu, a ɛko tia-temperature oxidation ne corrosion a ɛkorɔn yiye. Bere koro no ara mu no, nneɛma te sɛ molybdenum ne vanadium a wɔde ka ho no tu mpɔn kɛse wɔ-temperature ahoɔden ne creep resistance a ɛwɔ dade mu no mu, na ɛma ɛkɔ so kura structure integrity ase wɔ bere tenten-Term high-temperature environments. Saa adeɛ yi ma wɔde di dwuma kɛseɛ wɔ soro-temperature mfiri te sɛ boilers, turbine, ne heat exchangers.
Wɔ nnansa yi mfe mu, bere a mfiridwuma mu mfiridwuma anya nkɔso no, wɔama dade a ɛyɛ dade a ɛyɛ dade no adwumayɛ akɔ so ayɛ adwuma yiye nso. Ɔhyew awo ntoatoaso foforo-aduru a ɛko tia no ama ne kɛse-ɔhyew ahoɔden ne oxidation a ɛko tia no atu mpɔn kɛse denam alloy ratio ne ɔhyew ayaresa nhyehyɛe a ɛma ɛyɛ papa no so. Sɛ nhwɛso no, ɔhyew bi a ɛkɔ anim-ɛko tia dade a ɛko tia no da so ara tumi kura mfiridwuma mu nneɛma a ɛkyɛn so wɔ soro-temperature environments a ɛboro 1000℃, a edi mfiridwuma mu ahiade ahorow a ɛyɛ den kɛse ho dwuma. Bio nso, ɔhyew a ɛyɛ adwuma a ɛyɛ ɔhyew-ɛko tia no nso renya nkɔso bere nyinaa, te sɛ electroslag remelting, vacuum degassing ne mfiridwuma afoforo a wɔde di dwuma, a ɛma ahotew ne adwumayɛ mu ahoɔden a ɛyɛ adwuma no tu mpɔn kɛse.
Wɔ wiase nyinaa ahoɔden nsakrae ne nkɔso a ɛkɔ so ntɛmntɛm a ɛfa nneɛma a wɔyɛ ho a ɛkɔ soro no akyi no, gua so ahwehwɛde a ɛfa dade ɔhyew ho-dadeɛ a ɛko tia no kɔ so nyin. Titiriw wɔ gas turbines, nuklea ahoɔden mfiri ne nnuru a wɔde yɛ nneɛma mu no, ɔhyew-dadeɛ a ɛko tia no ho anidasoɔ a wɔde di dwuma no trɛw. Ɛnam nneɛma ho nyansahu a ɛkɔ anim nti, ɔhyew-dadeɛ a ɛko tia no bɛnya nkɔsoɔ wɔ ɔhyeɛ a ɛkorɔn, nkwa tenten ne ɛka a ɛba fam daakye, a ɛbɛma wɔanya ahotosoɔ a ɛyɛ den ama mfiridwuma mu nneɛma a ɛkorɔn a wɔde ho to so-temperature nnwinnadeɛ.
Metallurgical heat-Syned steel nyɛ ade titiriw a ɛwɔ soro-temperature nnwuma mu nko, na mmom ɛyɛ tumi a ɛho hia a ɛma nnɛyi mfiridwuma mfiridwuma nya nkɔso. Ne adwumayɛ a ɛkɔ so yɛ papa ne dwumadie a ɛtrɛ no bɛkɔ so adi dwuma a ɛho hia wɔ daakye mfiridwuma mu nkɔsoɔ mu.
