Martensitic stainless hlau kav tau siv rau hauv ntau daim ntawv thov uas xav tau lub zog thiab kev tiv thaiv corrosion, tshwj xeeb tshaj yog nyob rau xyoo tas los no, nrog rau cov roj thiab cov raj xa dej ntawm cov roj thiab cov nkev qhov dej. Nrog kev nthuav dav ntawm thaj chaw thov, thaj chaw xeb rau cov khoom siv hlau rau kev tsim roj thiab roj tau dhau los ua qhov hnyav dua. Piv txwv li, lub siab nyob rau hauv ib puag ncig ua haujlwm nce ntxiv raws li qhov tob ntawm cov cuab ntxiab nce. Ib qho ntxiv, Wells tau teeb tsa hauv ib puag ncig kev ua phem, piv txwv li, muaj cov pa roj carbon dioxide ntub, hydrogen sulfide thiab chloride ions hauv qhov siab. Hauv qhov pom ntawm qhov no, kev nce hauv lub zog siab, kev xeb ntawm cov khoom sib xyaw ua ke thiab qhov xav tau rau qhov nkig ntawm cov roj thiab roj Wells kav dej tau ua rau muaj teeb meem loj. Yog li ntawd, cov kev xav tau rau lub zog muaj zog cov kav hlau nrog kev txhim kho corrosion zoo tau nce. Hauv qhov kev piav qhia tom ntej,&"; kev txhim kho corrosion zoo heev &" hais txog kev tiv thaiv rau" corrosion" thiab" nkig" tshwm sim los ntawm cov khoom tiv thaiv corrosive. Cov tshuaj tiv thaiv tsis txaus siab ua rau, piv txwv li, sulfide kev nyuaj siab corrosion tawg vim yog hydrogen sulfide. Hauv qhov kev piav qhia tom ntej," Martin TiC stainless hlau" hais txog theem tseem ceeb tsim los ntawm TiC theem ntawm mink tom qab txias thiab hloov pauv, hlau, thiab theem tseem ceeb tsim los ntawm theem austenite hauv cov hlau, ntawm qhov kub siab.
Mink twj tso kua mis steel yeeb nkab tsis muaj sulfide kev nyuaj siab corrosion tawg corrosiveness tab sis muaj txaus carbon dioxide corrosion tsis kam thiab ya raws tsis kam. Yog li ntawd, lawv tau siv hauv ib puag ncig uas muaj cov pa roj carbon dioxide ntub ntawm qhov kub tsawg. Raws li qhov piv txwv zoo, lub tebchaws uas cov kav dej tau ua yog martensitic stainless hlau L80 txhais los ntawm API (American Petroleum Institute). Qhov no yog lub teb chaws roj, suav nrog Martin TiC yeeb nkab steel hlau. Raws li qhov feem pua hnyav, C: 0.15-0.22%, Si: tsawg dua 1%, manganese: thawj%, chromium: 12.0-14.0%, P: tsawg dua 0.020%, tsawg dua 0.010%, tsawg dua 0.50%ntawm npib tsib xee, thiab tsawg dua 0.25% ntawm tooj liab. L80 qib hlau qib roj hauv lub tebchaws feem ntau yog siv feem ntau ntawm ib puag ncig uas muaj hydrogen sulfide ntawm qhov siab ntawm 0.002 ATM lossis tsawg dua thiab muaj cov pa roj carbon ntub ntub ntawm qhov kub tsawg.
Mink rub cov kav hlau tsis xeb, suav nrog cov kav dej uas dhau qib API L80 qib txhais, feem ntau siv tom qab quenching thiab kub. Txawm li cas los xij, vim tias TiC martensitic stainless hlau martensite hloov pauv qhov kub (qhov no yog hais tom ntej no hu ua Ms point thiab feem ntau siv TiC hloov pauv qhov ntsuas kub kawg hu ua MF point) yog 300 centigrade. Hauv txoj kev no, Ms point ntawm martensitic stainless hlau qis dua li ntawm cov hlau tsis tshua muaj hlau, yog li lawv nkag siab heev rau quenching tawg. Tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm cov yeeb nkab steel tawv, uas txawv ntawm cov phaj lossis cov khoom siv, vim tias kev faib tawm siab nyob rau hauv txoj kev nyuaj, quenching tawg yog feem ntau tshwm sim los ntawm cov dej ib txwm quenching. Yog li ntawd, nws yog qhov tsim nyog yuav tsum tau siv txoj hauv kev txias rau tawv Markov twitch ntawm qhov txias txias qis xws li huab cua txias lossis cua txias kom tsis txhob ua kom tawg. Txawm li cas los xij, txawm hais tias txoj hauv kev saum toj no tuaj yeem tiv thaiv kev tawg, nws cuam tshuam nrog qhov teeb meem uas tsim khoom thiab tsis zoo ntawm cov khoom siv dag zog thiab kev tiv thaiv corrosion tshwm sim vim qhov txias txias tsawg ntawm txoj kev no. Hauv qhov kev piav qhia hauv qab no," txias" txhais tau tias&"quenching lossis quenching txias &"; tshwj tsis yog muaj lwm yam teev tseg.
Feem ntau hais lus, cov hauv qab no yog qhov paub txias txias' cuam tshuam rau kev tiv thaiv kev xeb thiab lwm yam khoom uas nquag siv siv cov kav hlau tsis xeb.