Lub luag haujlwm ntawm Cr thiab Ni hauv 310 stainless hlau

Sep 27, 2021

Tso lus

Chromium (Cr): Rau cov hlau tsis muaj cua sov, Cr tuaj yeem tswj hwm nws tus kheej kev ruaj ntseg ntawm qhov kub siab, thiab yuav tsis oxidize thiab poob tawm. Txawm li cas los xij, cov ntsiab lus ntawm Cr yuav tsum tsis txhob siab dhau. Yog tias nws siab dhau, qhov nyuaj ntawm cov hlau tsis muaj hlau nws tus kheej kuj tseem yuav txo qis, vim Cr yog cov khoom siv uas tuaj yeem txhawb kev pom ntawm α, thaum tuav γ, ntau dhau α yuav yooj yim ua rau tsim qee qhov nkig theem hauv cov khoom . Yog li ntawd, hauv austenitic stainless hlau, peb cia siab tias Cr cov ntsiab lus yuav nyob nruab nrab, uas tuaj yeem tsis tsuas yog ua kom ntseeg tau cov khoom ntawm cov khoom, tab sis kuj tiv thaiv qhov pom ntawm qee qhov nkig theem.


Npib tsib xee (Ni): Ni yog lub hauv paus tseem ceeb heev hauv cov cua sov-resistant austenitic stainless hlau, thiab nws ua lub luag haujlwm tseem ceeb hauv kev txhawb kev tsim cov γ. Hauv daim duab theem, qhov nce ntawm Ni cov ntsiab lus tuaj yeem txo qhov hloov pauv kub ntawm γ rau α, uas tuaj yeem txhim kho kev ruaj ntseg ntawm austenite ntawm cov qauv matrix. Ib qho ntxiv, kev hloov kho kom raug ntawm Ni cov ntsiab lus hauv cov hlau tsis muaj zog tuaj yeem txhim kho cov cuab yeej siv tau zoo ntawm cov hlau tsis huv thiab ua kom ntseeg tau tias nws ua haujlwm tau zoo.