Ikhaya > Izindaba > Okuqukethwe
Ukukhiqizwa:
Insimbi engagqwali ebizwa ngokuthi i-duplex esixazululweni sayo esiqinile sesigaba se-ferrite kanye ne-austenite ihlangana nengxenye ngayinye, ngokuvamile okuqukethwe okuncane kokuqukethwe nakho kudingeka kufinyelele ku-30%. Uma okuqukethwe kwe-C okuphansi, i-Cr okungu-18% kuya ku-28%, okuqukethwe kwe-Ni okungu-3% kuya ku-10%. Enye insimbi iqukethe ne-Mo, i-Cu, i-Nb, i-Ti, i-N nezinye izinto zokuhlanganisa.
Izinzuzo.
Insimbi inezici zensimbi engagqwali ye-austenitic ne-ferritic,
1. Uma kuqhathaniswa ne-ferrite, i-plasticity, ukuqina okuphezulu, ukungabi nabuthakathi bokushisa kwegumbi, ukumelana nokugqwala kwe-intergranular kanye nokusebenza kwe-welding kuthuthukiswa kakhulu, kuyilapho kugcinwa insimbi. Insimbi engagqwali efanelekile engu-475 ℃ i-brittleness kanye ne-thermal conductivity ephezulu, ene-superplasticity njalo njalo.
2. Uma kuqhathaniswa nensimbi engagqwali ye-austenitic, amandla aphezulu kanye nokumelana nokugqwala kwe-intergranular kanye nokumelana nokucindezeleka kwe-chloride ukugqwala kuthuthuke kakhulu.
3. Insimbi engagqwali ephindwe kabili inokumelana okuhle kakhulu nokugqwala okubangelwa yimigodi, kodwa futhi inengxenye yensimbi engagqwali ye-nickel.
Isikhathi sokuthunyelwe: Mashi-12-2018