Duplex stainless hlau alloy ntsiab thiab txias tus nqi

Cov kev sim thiab theoretical xam pom tau hais tias qhov tseem ceeb ntawm qhov txias txias kom tau txais cov qauv biphase tom qab cua sov ntawm qhov chaw tseem ceeb yog cuam tshuam nrog cov ntsiab lus manganese hauv cov hlau. Qhov tseem ceeb ntawm qhov txias txias yuav tsum tau txais cov qauv biphase tuaj yeem kwv yees los ntawm qhov muaj cov ntsiab lus alloying hauv cov hauv paus hlau, uas muab lub hauv paus rau kev xaiv cov txheej txheem txias kom tsim nyog hauv kev tsim cov cua kub-kho biphase steel.
Thaum cov tshuaj muaj pes tsawg leeg ntawm cov hlau yog qhov tseeb, qhov qis qis qis yuav tsum tau txais raws li qhov ua tau raws li qhov ua tau kom ntseeg tau cov qauv biphase, kom cov pa roj carbon monoxide hauv ferrite muaj sij hawm txaus rau diffuse rau hauv austenite, yog li txo cov yield. lub zog ntawm biphase steel thiab txhim kho cov ductility ntawm biphase steel. Yog hais tias cov ntsiab lus ntawm alloying ntsiab nyob rau hauv cov hlau yog siab tshaj 4, qhov tseem ceeb txias tus nqi yog siab dhau lawm, thiab cov ferrite muaj ntau dua solidly yaj carbon tom qab txias, uas yog tsis conducive kom tau txais dual-theem steel nrog kev ua tau zoo heev, ces cov tshuaj. Kev sib xyaw ntawm cov hlau yuav tsum tau hloov pauv, cov ntsiab lus ntawm cov ntsiab lus alloying hauv cov hlau yuav tsum tau nce, yog li txo qis qhov tseem ceeb ntawm cov cua txias, los yog hauv cov txheej txheem ntawm ob-theem steel, cov txheej txheem tempering ntxiv yuav tsum tau ntxiv kom txo tau cov khoom tawg. carbon nyob rau hauv ferrite. Txhim kho kev ua haujlwm ntawm duplex steel. Yog hais tias cov hlau muaj zog carbide tsim cov ntsiab lus, thaum kwv yees qhov tseem ceeb ntawm qhov txias txias, austenite hardenability thiab dej siab ntawm cov ntsiab lus ntawm cov cua kub hauv cheeb tsam tseem ceeb yuav tsum raug coj mus rau hauv tus account, thiab carbide hais ntawm V thiab Ti tuaj yeem txhim kho austenite hardenability thiab txo qhov tseem ceeb txias npaum li cas los ntawm cov nyhuv nashing ntawm theem interface.