Duplex Stainless Steel Castings

Chitsulo chosapanga dzimbiri cha Duplex(DSS) amatanthauza gulu la zitsulo zosapanga dzimbiri ndi metallographic microstructure onse ferrite ndi austenite aliyense mlandu pafupifupi 50%. Nthawi zambiri, zomwe zili m'magawo ocheperako ziyenera kukhala zosachepera 30%. Pankhani yokhala ndi mpweya wochepa, Cr zili 18% mpaka 28%, ndipo Ni zomwe zili 3% mpaka 10%. Zitsulo zina zosapanga dzimbiri zosapanga dzimbiri zimakhalanso ndi zinthu zophatikizira monga Mo, Cu, Nb, Ti, ndi N. DSS ili ndi mawonekedwe achitsulo chosapanga dzimbiri cha austenitic ndi ferritic. Poyerekeza ndi ferrite, ili ndi pulasitiki wapamwamba komanso ductility, palibe kutentha kwa chipinda, komanso kupititsa patsogolo kukana kwa dzimbiri kwa intergranular ndi kuwotcherera, ndikusungabe brittleness, matenthedwe apamwamba, komanso superplasticity ngati chitsulo chosapanga dzimbiri. Poyerekeza ndichitsulo chosapanga dzimbiri cha austenitic, DSS ili ndi mphamvu zambiri ndipo imawongolera kwambiri kukana kwa dzimbiri la intergranular ndi chloride stress corrosion. Chitsulo chosapanga dzimbiri cha Duplex chimakhala ndi chitsulo chosapanga dzimbiri komanso chitsulo chosapanga dzimbiri. Kupezeka magiredi duplex zosapanga dzimbiri kuponyedwa ndi anataya sera ndalama kuponyera : 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770, A 890 1C, A 890 1A, A 890, A 890, A 8 A 8 A 8 A 8 A9, A 890, 8 A 9 A 9, 9 A 9 A 9, 8 A 9 A 9, 8 A 8 A 9 A 9, 8 A 9 A 8 A 9, 8 A 9 A 8 A 9, 8 A 9 A 8 A 9, 8 A 9 A 8 A 8 995 1B, A 995 4A, A 995 5A, 2205, 2507, 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N