Mbalame ya alloy yotentha kwambiri ndi chinthu chapadera chomwe chimagwira ntchito bwino m'malo otentha kwambiri. Amagwiritsidwa ntchito kwambiri muzamlengalenga, mphamvu, mankhwala, ndi zina. Ubwino wake umawonekera m'mbali zotsatirazi:

1. Kukhazikika Kwapamwamba Kwambiri Kutentha Kwambiri

Kusungirako Mphamvu Zazikulu Zakutentha: Ngakhale m'malo otentha kwambiri kuposa 600 ° C, imakhalabe ndi mphamvu zowonongeka, zokolola, ndi mphamvu zotopa, ndipo sizimafewetsa mofulumira ndi kutentha kowonjezereka. Mwachitsanzo, ma superalloys opangidwa ndi nickel amakhala ndi zida zokwanira zamakina pa kutentha kozungulira 1000 ° C, kukwaniritsa zofunikira zamagulu ofunikira monga ma turbine blades.

Creep Resistance: Mukakumana ndi kupsinjika kwakanthawi kutentha kwambiri, zinthuzo zimawonetsa kupindika pang'ono (creep resistance), kuteteza kulephera chifukwa chakusintha kwapang'onopang'ono. Izi ndizofunikira pazida monga ma turbines ndi ma boilers omwe amagwira ntchito m'malo otentha komanso opanikizika kwambiri.

2. Wabwino makutidwe ndi okosijeni ndi dzimbiri Kukana

Kulimbana ndi Kutentha Kwambiri kwa Oxidation: Mu mpweya wotentha kwambiri kapena gasi, zinthuzo zimapanga filimu wandiweyani wa okusayidi (monga Cr₂O₃ kapena Al₂O₃) pamwamba pake, kuteteza kuwonjezereka kwa okosijeni, kukana bwino kuwonongeka kwa okosijeni, ndi kukulitsa moyo wake wautumiki. Mwachitsanzo, mbale za aloyi zomwe zimakhala ndi chromium ndi aluminiyamu zimasunga bwino makutidwe ndi okosijeni pamatenthedwe opitilira 1000 ° C.

Kulimbana ndi Kutentha: Ma alloys omwe ali ndi kutentha kwambiri sagonjetsedwa ndi mpweya wa acidic ndi alkaline (monga hydrogen sulfide ndi sulfur dioxide), zitsulo zosungunuka, ndi mchere, zomwe zimawapangitsa kukhala oyenera malo ovuta kwambiri monga ma reactor a mankhwala, zopsereza zinyalala, ndi zida za nyukiliya.

3. Kukhazikika Kwabwino Kwambiri ndi Kukhazikika Kwamapangidwe

Processability: Ngakhale kuti ali ndi mphamvu zambiri, ma alloys otentha amatha kupangidwa m'njira zosiyanasiyana, kuphatikizapo mbale ndi machubu, kupyolera mu njira monga kupangira, kugudubuza, ndi kuwotcherera, kuti akwaniritse zofunikira za mapangidwe a zipangizo zosiyanasiyana (monga mbale zachitsulo zosagwira kutentha kwa boilers zazikulu ndi mapanelo a chipinda choyaka moto cha injini za ndege).

Kukhazikika kwa Microstructural: Ngakhale pogwiritsa ntchito kutentha kwanthawi yayitali, mawonekedwe amkati a metallographic (monga gawo la alloy ndi kapangidwe ka tirigu) sangasinthe kwambiri. Izi zimalepheretsa kuwonongeka kwa ntchito chifukwa cha kuwonongeka kwa kamangidwe ndikuonetsetsa kuti zinthuzo zikugwira ntchito kwanthawi yayitali.

4. Wide Temperature Range, Yoyenera Malo Opambana Kwambiri

Ma mbale a aloyi amaphimba kutentha kwapakati pa kutentha kwapakati (600 ° C) mpaka kutentha kwambiri (kupitirira 1200 ° C). Ma mbale a alloy okhala ndi nyimbo zosiyanasiyana ndi oyenera kugwiritsa ntchito zosiyanasiyana: mwachitsanzo, zitsulo zopangidwa ndi chitsulo ndizoyenera kutentha kwapakati pa 600-800 ° C, ma alloy opangidwa ndi nickel ndi oyenera kutentha kwapakati pa 800-1200 ° C, ndi ma alloys opangidwa ndi cobalt angagwiritsidwe ntchito pa kutentha kwakukulu kwa nthawi yochepa.

Iwo akhoza kupirira ophatikizana zotsatira za kutentha ndi makina katundu. Mwachitsanzo, ma turbine disks mu injini za ndege ayenera kupirira kutentha kwa mpweya woyaka komanso mphamvu yapakati yopangidwa ndi kuzungulira kothamanga kwambiri.

5. Kuchepetsa ndi Kupulumutsa Mphamvu Kuthekera

Poyerekeza ndi zitsulo zachikhalidwe zosagwira kutentha, ma aloyi ena omwe amatha kutentha kwambiri (monga nickel-based ndi titaniyamu-aluminium-based alloys) amakhala ndi kachulukidwe kakang'ono pakuchita kutentha komweko, zomwe zimathandizira kuti zida zisakhale zopepuka (mwachitsanzo, kuchepetsa kulemera kwa kapangidwe ndi kugwiritsa ntchito mphamvu mumakampani opanga zakuthambo).

Chifukwa cha kukana kwawo kutentha kwapamwamba komanso kulimba, amatha kuchepetsa kukonzanso kwa zida ndi ndalama zosinthira, mosalunjika kuwongolera mphamvu zamagetsi (mwachitsanzo, kugwiritsa ntchito mbale za alloy zotentha kwambiri m'ma boiler opangira magetsi kumatha kukulitsa kutentha ndi kutulutsa mphamvu).