Duplex simbi isina simbi ine hunhu hwe austenitic Stainless simbi uye ferritic Stainless simbi nekuti ine austenite + ferrite dual phase chimiro uye zviri mukati mezvikamu zviviri zvimiro zvakangofanana. Simba regoho rinogona kusvika 400Mpa ~ 550MPa, inova yakapetwa kaviri yeyakajairika austenitic simbi isina tsvina. Kuenzaniswa neferritic Stainless simbi, duplex Stainless simbi ine yakanyanya kusimba, yakaderera brittle shanduko tembiricha, yakanyanya kunatsiridza intergranular corrosion resistance uye welding performance; uchichengeta humwe hunhu hweferritic Stainless simbi, senge 475 ℃ brittleness, kupisa Kukwirisa conductivity, diki mutsara wekuwedzera coefficient, superplasticity uye magineti zvimiro. Kuenzaniswa neaustenitic Stainless simbi, duplex Stainless simbi ine simba rakakwirira, kunyanya simba regoho rinovandudzwa zvakanyanya, uye pitting corrosion resistance, stress corrosion resistance, corrosion kuneta kuramba uye zvimwe zvivakwa zvakavandudzawo zvakanyanya.
Duplex simbi dzisina tsvina dzakaiswa mumhando ina: Cr18, Cr23 (isina Mo), Cr22 uye Cr25 zvichienderana nemakemikari avo. Kana iri Cr25 duplex simbi isina tsvina, inogona kukamurwa kuita yakajairwa uye super duplex simbi isina tsvina. Pakati pavo, Cr22 uye Cr25 anonyanya kushandiswa. Mazhinji ema duplex simbi asina tsvina anoshandiswa muChina anogadzirwa muSweden. Iwo chaiwo mamakisi ndeaya: 3RE60 (Cr18 mhando), SAF2304 (Cr23 mhando), SAF2205 (Cr22 mhando), uye SAF2507 (Cr25 mhando).
Nguva yekutumira: Ndira-19-2020