Insimbi Engagqwali - Ibanga 253MA (UNS S30815)

I-253MA iyibanga elihlanganisa izakhiwo zesevisi ezinhle kakhulu emazingeni okushisa aphezulu kalula ukwenziwa. Imelana ne-oxidation emazingeni okushisa afinyelela ku-1150°C futhi inganikeza isevisi ephakeme kuneBanga lama-310 ku-carbon, i-nitrogen nesibabule esiqukethe umkhathi.

Okunye ukuqashelwa okuphathelene naleli banga yi-2111HTR.

I-253MA iqukethe i-nickel ephansi kakhulu, eyinikeza inzuzo ethile ekwehliseni i-sulphide emkhathini uma iqhathaniswa nama-nickel alloys aphezulu kanye neBanga lama-310. Ukufakwa kwe-silicon ephezulu, okuqukethwe kwe-nitrogen ne-cerium kunikeza insimbi ukuzinza okuhle kwe-oxide, amandla okushisa aphakeme aphezulu kanye nokuhle kakhulu. ukumelana nemvula yesigaba se-sigma.

Isakhiwo se-austenitic sinikeza leli banga ukuqina okuhle kakhulu, ngisho naphansi kwamazinga okushisa e-cryogenic.

Izakhiwo Eziyinhloko

Lezi zakhiwo zicaciswe kumkhiqizo ogoqelwe isicaba (ipuleti, ishidi kanye nekhoyili) njengeBanga S30815 ku-ASTM A240/A240M. Izakhiwo ezifanayo kodwa ezingafani ngempela zicaciswe kweminye imikhiqizo efana nepayipi nebha ngokucaciswa kwazo.

Ukwakheka

Ububanzi obujwayelekile bokuqamba bebanga lama-253MA lwezinsimbi ezingenasici bunikezwa kuthebula 1.

Ithebula 1.Ukwakheka kwebanga lensimbi engagqwali engu-253MA