304 (1.4301) vs 201 stainless hlau: sib nqus khoom

 

304 (1.4301) vs 201 stainless hlau: sib nqus khoom

1. Lub hauv paus microstructure thiab kev sib nqus

Magnetism ntawm stainless hlau yog txiav txim siab los ntawm nwsCrystalline qauv:

Austenitic Stainless hlau(piv txwv li, 304, 201): feature lub ntsej muag-nruab nrab lotub (FCC) Ausenitic qauv ntawm chav tsev kub. Nyob rau hauv anealed xeev, lawv feem ntauTsis muaj hlau nplaum(lossis nthuav tawm qhov tsis muaj zog heev hlau nplaum).

Ferritic / Martensitic Stainless Hlau: Muaj lub cev kaw lus (BCC) thiab qhiamuaj zog muaj zog tshaj(xws li, 430, 410 stainless hlau).

Ob 304 thiab 201 yog Austenitic, tab sis sib txawv hauvTshuaj Muaj Tshuajua rau muaj kev ruaj ntseg ruaj khov ntawm cov Austenitic theem, uas ua rau muaj kev hloov tsis zoo hauv cov nyom.

2. Cawv ntawm cov tshuaj muaj pes tsawg leeg rau ntawm Magnetism

Lub ntsiab	304 (1.4301)	201 Stainless Hlau	Qhov tseem ceeb lub luag haujlwm hauv Magnetism
Npib tsib caug (ni)	8–10.5%	1–4%	Ib qho muaj zog ustenite-ruaj khov keeb kwm: Ntau cov ntsiab lus Ni cov ntsiab lus ruaj khov Austenite, ua rau nws nyuaj rau hloov mus ua theem sib nqus.
Manganese (mn)	Tsawg dua los yog sib npaug rau 2%	6–10%	Ib qho kev siv ua ib pab pawg txom nyem (tsis zoo dua NI); Mn mn tsis tuaj yeem tsim los ntawm cov nag lossis daus ntawm cov pharases mages.
Carbon (c)	Tsawg dua los yog sib npaug rau 0. 07%	Tsawg dua los yog sib npaug rau 0. 15%	Txhawb cov kev hloov pauv Martformation ntawm cov ntsiab lus siab, nce txoj kev nyiam rau Magnetism tom qab ua haujlwm txias.

3. Kev sib piv ntawm kev coj cwj pwm

(1) Annealed State (tsis muaj peev xwm)

304: Tom qab tag nrho anneing, nws tsim aCov qauv ntshiab Austenitic, uas yogTsis muaj hlau nplaum(lossis tsuas yog cov hlau nplaum tsis muaj zog, tsis tuaj yeem yog cov hlau nplaum uas ib txwm muaj).

201: Vim tias Ni tsawg thiab siab MN cov ntsiab lus, austenite ruaj khov yog tsis zoo, thiab nws yuav muaj tsawg duaFerritic lossis Martensitic Perases, ua raume ntsis Magnetism me ntsis(Tsis muaj zog los ntawm cov hlau nplaum).

(2) Tom qab ua haujlwm txias (piv txwv li khoov, ncab)

304: Txias deformation induces me me ntawmKev hloov pauv MARTENITIC, generatingme ntsis Magnetism me ntsis(Tsis muaj zog los ntawm cov hlau nplaum), tab sis ntau tsis muaj zog tshaj ferritic steels.

201: Ntau tus nquag rauKev hloov pauv MARTENITICThaum lub sij hawm ua haujlwm txias (tsis ruaj khov kho vim tsawg), ua rauTseem Siv Kom Txhim Kho Cov Hlau nplaum(Muaj zog adsorption los ntawm cov hlau nplaum tshaj 304).

(3) Tom qab vuam lossis kev kho kom sov siab

304: Qhov kub-cuam tshuam cheeb tsam (Hz) hauv vuam yuav nag ntsis ferritic theem, ua rau hauv zosMagnetism tsis muaj zog, tab sis cov matrix tseem feem ntau ustenitic.

201: Cov kub kub los yog vuam ntxiv kev tsim cov kev tsim ntawm ntau duatheem ferritic, txuas ntxiv nce zuj zus tuaj, uas yog qhov nyuaj rau tshem tawm kiag li los ntawm annealing.

4. Hauv paus ua rau muaj kev sib nqus

304: Cov ntsiab lus Ni cov ntsiab lus ruaj khov ntawm cov qauv Austenic, txwv cov dej nag ntawm cov theem sib xyaw ua haujlwm txawm tias muaj cua sov ua haujlwm lossis cua sov, ua rau muaj kev sib tw tsawg.

201: Tsis txaus NI (tsuas yog 1/4 txog 1/2 ntawm 304 cov ntsiab lus) Kev ruaj khov ntawm kev ua kom ruaj khov, tab sis MN cov nyhuv muaj kev ruaj khov ntawm Ferritic lossis Marteritic theem thiab muaj zog hlau nplaum.

5. Kev cuam tshuam ntawm Magnetism hauv kev thov cov xwm txheej

Xwm txheej	304 (1.4301)	201 Stainless Hlau
Tsis yog sib nqus ib puag ncig	Haum (piv txwv li, cov khoom siv kho mob, cov twj paj nruag zoo)	Tsis tsim nyog (yuav ua rau pom qhov tsis muaj zog tshaj plaws uas muaj zog tshaj plaws hauv lub zog, muaj zog dua hlau nplaum tom qab ua)
Hniav Txheej Txheem Hniav	Tsis muaj kev cuam tshuam kev sib deev, zoo nkauj nto moo	Ua tau sib nqus cov teebmeem ntawm cov tsos (piv txwv li hmoov av, hlau filings)
Tsawg-qhov chaw kub	Tsis yog-sib nqus thiab kev sib nqus	Nquag rau embrittlement ntawm tsawg kub, hlauetism yuav cuam tshuam rau cov cuab yeej siv tau