Duplex Stainless Steel Castings

Duplex Stainless Simbi(DSS) inoreva boka resimbi isina tsvina ine metallographic microstructure yezvese ferrite uye austenite imwe neimwe accounting inosvika 50%. Kazhinji, zviri mukati mezvikamu zvishoma zvinoda kuve zvishoma ne30%. Panyaya yeyakaderera kabhoni, iyo Cr yemukati ndeye 18% kusvika 28%, uye iyo Ni yemukati i3% kusvika 10%. Mamwe masimbi asina duplex anewo alloying zvinhu zvakaita seMo, Cu, Nb, Ti, uye N. DSS ine hunhu hwe austenitic uye ferritic stainless simbi. Kana ichienzaniswa neferrite, ine yakakwira plasticity uye ductility, hapana tembiricha yekamuri brittleness, uye yakanyanya kunatsiridza intergranular corrosion resistance uye welding performance, ichiri kuchengetedza brittleness, high thermal conductivity, uye superplasticity se ferrite simbi isina tsvina. Kuenzaniswa neaustenitic simbi isina tsvina, DSS ine simba rakawanda uye yakavandudza zvakanyanya kuramba kune intergranular corrosion uye chloride stress corrosion. Duplex simbi isina tsvina ine yakanakisa pitting corrosion resistance uye zvakare iri nickel-saving stainless simbi. Inowanikwa magiredhi e duplex Stainless simbi yakakandwa yakarasika wax investment kukanda : 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770, A 890 1C, A 890 1A, A 890, A 8 A 8 A 8 A 8 A 8 A 8 A9 A9, A9 995 1B, A 995 4A, A 995 5A, 2205, 2507, 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N