Mawu oyambira austetitic kutentha

Austetitic kutentha kutentha ndi mtundu wa chitsulo chosakanizira kutentha komwe matrix ndi mawonekedwe a koustetic. Zitsulo zamtunduwu zimakhala ndi zinthu zambiri zopanga monga Nickel, manganese, ndi nayitrogeni. Imakhala ndi mphamvu zabwino kwambiri komanso zokhazikika pamwamba pa 600 ℃, ndi luso labwino kwambiri. Ndiwo mtundu wogwiritsidwa ntchito kwambiri wogwiritsidwa ntchito kwambiri pa 600 ~ 1200 ℃.

Kuphana

I. Mpweya wamtundu wotsika womwe umakhala pamwamba pa 0.1%, mpaka 0.4%. Carborm iyenera kugwiritsidwa ntchito ngati ma carbides kuti mukhale ndi mphamvu zambiri.

Ii. Kuchuluka kwa chromium ndi nickel kuwonjezeredwa nthawi zambiri 25%. Chromium makamaka amasintha banmocmamisery ndi mphamvu yamafuta, ndipo Nickel amaonetsetsa kuti alandire austetete wokhazikika.

Iii. Powonjezera tungsten, molybdenum, etc. amawonjezera kutentha kobwerezabwereza ndikuyendetsa ma carbide okhazikika kuti athetse mphamvu zamafuta.

Iv. Onjezerani KANDAIL, Titanium, Aluminium, etc. Kuti apange gawo lachiwiri lokhazikika, ndikuwongolera mphamvu yamafuta. Gawo lachiwiri lili ndi mitundu iwiri: Carbides (monga VC) ndi ma infinic, monga NI, TI kapena Al, womaliza kukhala ndi zotsatira zabwino kwambiri.

Kupatula

I. CR-NI mndandanda
Ndi gawo logwiritsidwa ntchito kwambiri mu chitsulo chamtunduwu, ndi ma ratios osiyanasiyana a chromium ndi nickel zokhudzana ndi zosowa za kutentha kosiyanasiyana. Monga chromium ndi zithunzi za nickel zimachuluka, kukana kwa oxidation ndi nyonga kutentha kwambiri kumawonjezeka. Onjezani zolimbitsa thupi zolimbikitsa chitsulo.

Ii. Cr-ni-n mndandanda
Pofuna kupulumutsa nickel ndikusintha kulimba kwa kutentha kwa chitsulo, nayitrogeni kumawonjezeredwa kwa chitsulo.

Iii. CR-MN-NI-N AQT ndi CR-MN-NQE
Kuphatikiza manganese ndi nayitrogeni ku chitsulo nthawi yomweyo imatha kusunga nickel yambiri, yomwe imagwiritsidwa ntchito kwambiri mu mafuta otha mafuta omwe amathetsa mafuta omwe amapezeka kwambiri kutentha. Pa maziko awa, kuwonjezera tungsten, Molybdenum, KANDIum, ndi Niobium ingathe kupititsa patsogolo mphamvu zotentha kwambiri ndikuzigwiritsa ntchito pazitsulo zothetsa zomwe zingathe kupirira katundu wamkulu. 2cr20mmyn8 Zitha kugwiritsidwa ntchito ngati mabatani okhala ndi mabatani apakatikati apakatikati, zopangira ntchenjera, cyste. Poyerekeza ndi CR-z-n chitsulo ndi Cr-n-z-z-ri-n Komabe, chifukwa chophatikiza manganese a manganee m'chitsulo, imasokoneza kukana kwa maxidation okwera kwambiri, ndipo kukana kwa oxidation siabwino ngati chala chosakanikirana.

Iv. Miesti ya Fe-Mn-Al
Zitsulo zamtunduwu sizili ndi chromium kapena nickel konse, ndikupanga matrix austetic ndi manganese ndi kaboni, ndikudalira aluminiyamu kuti ithetse vuto lolimba la oxida. Popanga ma fe-a Al mndandanda wa steel zida zotchinga, kukumbukira electro-slag kumafunikira kuonetsetsa kuti ndi zabwino komanso zokolola.