Duplex Stainless Steel(DSS) nujul kana grup stainless steel kalawan microstructure metallographic duanana ferrite na austenite unggal akuntansi pikeun ngeunaan 50%. Sacara umum, eusi fase kirang kedah sahenteuna 30%. Dina kasus eusi karbon low, eusi Cr nyaéta 18% nepi ka 28%, sarta eusi Ni nyaéta 3% nepi ka 10%. Sababaraha stainless steels duplex ogé ngandung elemen alloying kayaning Mo, Cu, Nb, Ti, sarta N. The DSS boga ciri stainless steel austenitic na ferritic. Dibandingkeun jeung ferrite, éta boga plasticity luhur sarta ductility, euweuh brittleness suhu kamar, sarta nyata ningkat lalawanan korosi intergranular jeung kinerja las, bari tetep ngajaga brittleness, konduktivitas termal tinggi, sarta superplasticity sakumaha ferrite stainless steel. Dibandingkeun jeungstainless steel austenitic, DSS boga kakuatan tinggi na nyata ningkat lalawanan ka korosi intergranular sarta klorida stress korosi. Duplex stainless steel gaduh résistansi korosi pitting anu saé sareng ogé baja tahan karat nikel. Sasmita sadia tina duplex stainless steel tuang ku casting investasi lilin leungit: 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770, A 890 1C, A 890 1A, A 890 3A, A 890 3A, A 890 1B, A 995 4A, A 995 5A, 2205, 2507, 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N
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