Pitting corrosion thiab intergranular corrosion yog ob qho ntawm cov hom corrosion corrosion hauv cov khoom siv hlau, tsis yog txo cov khoom siv nyiaj txiag tas lawm, tab sis kuj ua rau muaj kev ntseeg siab txheej txheem. Hauv peb tsab xov xwm yav dhau los "muaj tseeb: Nrhiav tau thiab kev ntsuam xyuas cov qauv," Peb systematically corrosion thiab kev ntsuas cov txuj ci rau ob hom no. Raws li qhov kawg ntawm cov koob no, cov kab lus no yuav nthuav dav txog kev tiv thaiv thiab kev tswj hwm corrosion, yooj yim rau kev tswj hwm corrosionensive.
I. Kev tiv thaiv kev tiv thaiv tiv thaiv pitting corrosion
Cov ntaub ntawv zoo tshaj plaws: Xaiv corrosion - Resistant alloys nrog cov hlau hluavtaws siab xws li cov tub rog uas muaj teeb meem thiab phosphorus.
Cov kev kho deg: passivation los yog anticorrosive txheej (piv txwv li electropating, polymer txheej) tau thov rau cais cov corrosion.
Kev tswj hwm ib puag ncig: txo cov concentration ntawm chloride ion, kho cov ph ion lossis tsis muaj zog alkaline, tswj hwm qhov kub thiab txias.
Electrochemical Kev Tiv Thaiv: Ua rau kev tiv thaiv Cathlic (piv txwv li, kev tiv thaiv kab mob kom tiv thaiv kev tiv thaiv corrosion hauv nroog.
Ii. Kev tiv thaiv kev tiv thaiv tawm tsam intergranular corrosion
Alloy Tsim: Ntxiv Titanium, Niobium thiab lwm yam stabilizing ntsiab, txo cov ntsiab lus ntawm carbon, phosphorus thiab lwm yam teeb meem.
Kev kho cua sov: cov teeb meem daws teeb meem kev kho mob lossis homogenizing annealing kom tsis txhob muaj nag lossis daus ntawm carbide ntawm cov qoob loo ntawm cov nplej zom.
Nto tiv thaiv: los ntawm passivation thiab txheej tiv thaiv, txoj kev ntawm corrosion nruab nrab intrusion yog thaiv.
Kev Txij Nkawm: Tswj kev ua haujlwm kub, zam kev ua haujlwm siab ntev - kev ua haujlwm kub, thiab ua kev kuaj mob thiab txij nkawm.
Ⅲ. Cov Kev Pab Txhawb Kev Pab Rau Grgtest
Txhawm rau pab cov neeg lag luam chaw nyob thiab cov teeb meem corrosion, Guangdian metrology muab qhov kawg {1} {1} Kev soj ntsuam cov txheej txheem, thiab cov lus pom zoo.
Muaj peev xwm ntawm cov khoom siv sib xyaw kev tsom xam, ntaus cim ntawm kev kuaj mob corrosion simulation, kev xaiv cov khoom siv thiab ua kom zoo.
Cov kev ntsuam xyuas tshwj xeeb xws li txheej txheem kev ntsuas thiab cov xeb hauv cov ntaub ntawv pov thawj ua kom pom tseeb tuaj yeem ua los muab kev txhawb nqa cov ntaub ntawv rau kev daws teeb meem.
Nws txhawb nqa ntawm -} chaw site kev tshawb nrhiav thiab muab cov tswv yim tsim tau zoo rau kev tswj hwm rau cov lag luam.
Ⅳ. Kev sib piv thiab cov ntsiab lus ntawm cov hom corrosion
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hwm |
pitting corrosion |
intercraphionine corrosion |
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Qho chaw |
Nws yog xim hlau nto |
Thaj av hauv nruab nrab ntawm cov hlau |
|
Neeg kho tshuab nyhuv |
Lub zog hauv zos txo thiab kev nyuaj siab |
Txo tag nrho lub zog tag nrho thiab nce siab phem |
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Kev Tsim Kho |
Cuam tshuam los ntawm nplaim xwm |
Tswj tau los ntawm cov ntawv sau thiab cov qauv ntawm cov ciaj ciam av |
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Cov ntsiab lus tseem ceeb rau kev kuaj xyuas |
SOUNFY MORPHOLY SECREED THIAB NONDESTRESTIVE SCOINTING |
metallographic thiab compositional tshuaj ntsuam |
|
Kev tiv thaiv ib txwm muaj |
Xaiv cov khoom siv, kev kho deg, ib puag ncig thiab kev tswj hwm |
Xaiv cov khoom siv, kev kho deg, ib puag ncig thiab kev tswj hwm |
Mastering Systemion Txheej Txheem Kev Tiv Thaiv yog qhov tseem ceeb rau kev ua kom ntev {{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} siv cov khoom siv ruaj khov. Cov ntsiab lus saum toj no Promlines cov tswv yim tiv thaiv tseem ceeb rau pitting thiab intergranular corrosion. Txog cov ntsiab lus kev tiv thaiv corrosion tiv thaiv corrosion lossis kev xeem rau cov ntaub ntawv tshwj xeeb, tiv tauj peb. Peb yuav txuas koj nrog peb cov kws tshuaj ntsuam kev tshaj lij thiab cov pab pawg sim.