Duplex u'amea u'amea uiga o austenitic u'amea u'amea ma ferritic u'amea u'amea ona o lo'o i ai austenite + ferrite fausaga lua vaega ma le anotusi o fausaga vaega e lua e faavae tutusa. O le malosi e maua ai e mafai ona oʻo atu i le 400Mpa ~ 550MPa, lea e faaluaina le uʻamea austenitic masani. Pe a faatusatusa i ferritic uʻamea uʻamea, duplex uʻamea uʻamea e maualuga toughness, brittle maualalo vevela vevela, matua faaleleia intergranular corrosion tetee ma uelo faatinoga; a'o taofi nisi o uiga o ferritic uamea u'amea, e pei ole 475 ℃ brittleness, vevela Amioga maualuga, fa'aopoopo fa'alautele laina laiti, superplasticity ma meatotino mageta. Pe a faatusatusa i austenitic uʻamea uʻamea, duplex uʻamea uʻamea e maualuga atu le malosi, aemaise lava le malosi e maua mai ua matua faaleleia, ma le pitting corrosion teteʻe, popole corrosion tetee, corrosion vaivai tetee ma isi meatotino ua faaleleia tele foi.
Ua fa'avasegaina u'amea u'amea Duplex i ituaiga e fa: Cr18, Cr23 (e le aofia ai Mo), Cr22 ma le Cr25 fa'avae i luga o la latou vaila'au fa'asaina. Ae mo Cr25 duplex uʻamea uʻamea, e mafai ona vaevaeina i masani ma super duplex uamea stainless. Faatasi ai ma i latou, Cr22 ma Cr25 e masani ona faʻaaogaina. O le tele o u'amea u'amea fa'aaoga i Saina e gaosia i Suetena. O togi faʻapitoa e: 3RE60 (ituaiga Cr18), SAF2304 (ituaiga Cr23), SAF2205 (ituaiga Cr22), ma SAF2507 (ituaiga Cr25).
Taimi meli: Ian-19-2020