Hastelloy B-2 alloy, yam ntxwv hardness thiab melting point, mechanical zog
Hastelloy B-2 alloy yog Ni-Mo alloy uas muaj cov pa roj carbon tsawg heev thiab cov ntsiab lus tsis tshua muaj silicon. Qhov kom zoo dua ntawm cov hlau no yog tias nws txo cov nag lossis daus ntawm cementite thiab lwm theem hauv cov vuam seam thiab tshav kub cuam tshuam, yog li ua kom muaj kev tiv thaiv corrosion zoo txawm tias nyob rau hauv cov khoom siv vuam. Hastelloy alloys yeej ib txwm paub txog lawv cov kev tiv thaiv corrosion zoo heev, thiab Hastelloy B-2 alloys tsis muaj qhov tshwj xeeb. Nws pom zoo corrosion kuj nyob rau hauv ntau yam oxidizing xov xwm, xws li inorganic thiab organic acids xws li sulfuric acid, phosphoric acid, thiab acetic acid, raws li zoo raws li bromic acid thiab hydrogen chloride gas.
Nyob rau hauv ntau xyoo ntawm daim ntawv thov kev lag luam, Hastelloy B-2 alloy tau dav siv hauv cov roj av thiab cov txheej txheem tshuaj xws li sulfuric acid distillation thiab concentration. Nws kuj tseem tsim nyog rau cov txheej txheem xws li alkylation ntawm ethylbenzene thiab kev tsim cov acetic acid los ntawm qis-siab sulfuric acid. Txawm li cas los xij, qee qhov teeb meem kuj tau pom nyob rau hauv daim ntawv thov ntawm Hastelloy B-2 alloy.
Ua ntej tshaj plaws, Hastelloy B-2 alloy muaj ob thaj chaw rhiab heev: thaj chaw kub siab ntawm 1200 ~ 1300 degree thiab thaj chaw nruab nrab kub ntawm 550 ~ 900 degree . Cov cheeb tsam no muaj kev cuam tshuam loj heev rau kev ntxhov siab corrosion, tab sis kuj tseem muaj qee qhov cuam tshuam. Vim dendrite shrinkage, intermetallic theem thiab cementite yuav precipitate nyob rau hauv lub grain ciam teb nyob rau hauv lub weld hlau thiab tshav kub-cuam tshuam cheeb tsam ntawm Hastelloy B-2 alloy, ua rau nws rhiab heev rau kev nyuaj siab corrosion.
Qhov thib ob, Hastelloy B-2 alloy tsis zoo thermal stability. Yog tias lub sijhawm nyob ntev dua me ntsis hauv qhov ntsuas kub ntawm 650 ~ 750 degree, theem yuav raug tsim tawm tam sim. Lub xub ntiag ntawm theem yuav txo qhov toughness ntawm Hastelloy B-2 alloy, ua rau nws rhiab heev rau intergranular corrosion, thiab tej zaum yuav txawm ua rau Hastelloy B-2 alloy kom tawg thaum lub sij hawm raw khoom, khoom siv ntau lawm txheej txheem los yog system. kev ua haujlwm.
Tam sim no, cov txheej txheem siab kub npau npau sulfuric acid yog cov qauv kev sim rau kev ntxhov siab corrosion ntawm Hastelloy B-2 alloy tsim nyob hauv tsev thiab thoob ntiaj teb, thiab nws txoj kev ntsuas yog txoj kev poob phaus. Txawm li cas los xij, txoj kev no tsis tshua muaj txiaj ntsig rau kev kuaj xyuas qhov kev ntxhov siab corrosion ntawm Hastelloy B-2 alloy. Txhawm rau ntsuas qhov ua tau zoo ntawm Hastelloy B-2 alloy, cov tsev tshawb fawb hauv tsev tau siv cov txheej txheem kub sulfuric acid los ua kev tshawb fawb thiab pom tias qhov corrosion kuj ntawm Hastelloy B-2 alloy tsis tsuas yog nyob ntawm nws cov tshuaj muaj pes tsawg leeg, tab sis kuj nyob ntawm nws cov txheej txheem kho cua sov. tswj. Yog tias cov txheej txheem thermal ua tsis raug tswj kom zoo, cov nplej ntawm Hastelloy B-2 alloy yuav loj hlob thiab Mo theem siab yuav los nag ntawm cov nplej. Lub sijhawm no, qhov kev ntxhov siab corrosion ntawm Hastelloy B-2 alloy yuav txo qis.
Zuag qhia tag nrho, Hastelloy B-2 alloy yog ib qho zoo heev corrosion-resistant khoom siv dav hauv tshuaj, petrochemical, kev tsim hluav taws xob thiab kev tswj cov pa phem. Txawm li cas los xij, nws daim ntawv thov kuj yuav tsum tau xav txog tag nrho nws qhov chaw muaj kev nkag siab zoo thiab cov teeb meem hygrothermal stability. Nyob rau tib lub sijhawm, ntau txoj hauv kev yuav tsum tau siv los ntsuas nws qhov kev ntxhov siab corrosion. Los ntawm kev nkag siab thiab paub txog cov yam ntxwv ua tau zoo thiab daim ntawv thov kev lag luam ntawm Hastelloy B-2 alloy, peb tuaj yeem ua tau zoo dua nws qhov zoo thiab muab cov kev daws teeb meem txhim khu kev qha rau kev tsim khoom.
