Duplex Steel Stainless Steel

Duplex Stainless Steel(DSS) waxa loola jeedaa koox bir ah oo leh qaab-dhismeed-yar oo bir ah oo ka kooban ferrite iyo austenite mid kasta oo xisaabiya qiyaastii 50%. Guud ahaan, nuxurka wejiyada yar waxay u baahan yihiin ugu yaraan 30%. Marka laga hadlayo kaarboonka hoose, waxa ku jira Cr waa 18% ilaa 28%, Ni waxa ku jira waa 3% ilaa 10%. Qaar ka mid ah birta aan birta lahayn ee duplex waxa kale oo ay ku jiraan walxo daawaha ah sida Mo, Cu, Nb, Ti, iyo N. DSS waxa ay leedahay sifooyinka birta austenitic iyo ferritic-ga ah. Marka la barbar dhigo ferrite, waxay leedahay caag sare iyo ductility, ma laha heerkul qolka qolka, oo si weyn u wanaajiyay iska caabinta daxalka intergranular iyo waxqabadka alxanka, iyadoo wali la ilaalinayo jajabnaanta, kuleylka kuleylka sare, iyo superplasticity sida birta ferrite. Marka la barbardhigoaustenitic ahamaDSS waxay leedahay awood sare waxayna si weyn u wanaajisay iska caabbinta daxalka intergranular iyo chloride stress corrosion. Birta aan lahayn Duplex waxay leedahay iska caabin daxalka oo aad u wanaagsan sidoo kale waa bir aan lahayn nikkel badbaadinaysa. Darajooyinka la heli karo ee birta laba-laabka ah ee kabka ah ee shubka maalgashiga dhunka ee lumay: 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770, A 890 1C, A 890 1A, A 890 9A 5A 8A 995 1B, A 995 4A, A 995 5A, 2205, 2507, 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N