Incoloy 825 alloy kev taw qhia, kev ua tau zoo thiab kev siv cov qauv
Incoloy 825 kev taw qhia:
Titanium-stabilized Incoloy 825 npib tsib xee-raws li alloy yog austenitic nickel-hlau alloy nrog ntxiv tooj liab thiab tsis tshua muaj hlau molybdenum. Incoloy 825 npib tsib xee-raws li alloy yog corrosion-resistant rau muaj zog acids thiab alkalis nyob rau hauv oxidizing thiab txo ib puag ncig.
Piv nrog rau cov austenite zoo tib yam, cov npib tsib xee hauv cov nickel-raws li alloy tuaj yeem ua rau nws tiv taus cov tshuaj chloride kev nyuaj siab corrosion, thiab molybdenum thiab tooj liab tuaj yeem ua rau nws tiv taus corrosion hauv kev txo qhov chaw.
Chromium thiab molybdenum Cheebtsam tiv thaiv chloride pitting thiab corrosion nyob rau hauv ntau yam oxidizing ib puag ncig. Nickel tuaj yeem muab ntxiv los ua kom cov khoom ruaj khov thaum lub sijhawm vuam thiab tsis tshua muaj kev nkag siab. Cov cuab yeej tsis-sensitizing no ua rau cov khoom resistant rau intergranular corrosion txawm thaum raug sensitizing kub ntau yam. Incoloy 825 npib tsib xee-raws li alloy muaj kev tiv thaiv zoo rau ntau qhov chaw ua haujlwm, suav nrog sulfuric acid, sulfurous acid, phosphoric acid, nitric acid, Hydrofluoric acid, organic acids thiab bases xws li sodium, potassium hydroxide, acid chloride, thiab lwm yam.
Incoloy 825 yog titanium-stabilized, tag nrho austenitic nickel-hlau-chromium alloy nrog ntxiv tooj liab thiab molybdenum.
Cov yam ntxwv ntawm Incoloy 825 yog:
Siab tsis kam mus rau chloride-induced stress corrosion
Zoo tiv thaiv pitting thiab crevice corrosion tshwm sim los ntawm chlorides
Zoo antioxidant thiab non-oxidative kuj rau kub acidity
Zoo toughness, txawm nyob rau hauv tas li ua hauj lwm nyob rau hauv lub chav tsev kub thiab siab kub, txog li 550 degree
Incolocy 825 npib tsib xee-raws li alloy yog resistant rau acid thiab alkali hlau corrosion nyob rau hauv ob qho tib si oxidizing thiab txo tej yam kev mob, raws li cov ntsiab lus siab nickel muab cov alloy zoo tiv thaiv kev nyuaj siab corrosion. Nyob rau hauv ntau yam kev mob xws li sulfuric acid, hydrochloric acid, nitric acid thiab lwm yam muaj zog acids, muaj zog alkali daws xws li sodium hydroxide thiab poov tshuaj hydroxide, thiab tov tov xws li nitric acid, hydrochloric acid thiab tooj liab sulfate tag nrho cov qhia tau hais tias kev ua tau zoo. Zoo li Alloy 650, Incolocy 825 npib tsib xee-raws li alloy yog siv tau raws li cov khoom siv cua sov thiab corrosion-resistant. Lub zog kub kub zoo heev thiab ua rau muaj zog acid corrosion, oxidation thiab carburization ua rau cov hlau no tau siv dav hauv ntau yam khoom siv thiab tshuaj lom neeg, uas feem ntau ua haujlwm nyob rau hauv qhov chaw kub kub uas tsis tshua muaj kev puas tsuaj.
Incoloy 825 npib tsib xee-raws li alloy yog ob qho tib si high-temperature thiab corrosion-resistant alloy. Cov ntsiab lus alloying tseem ceeb yog chromium, npib tsib xee, molybdenum, tooj liab, txhuas, titanium, hlau, thiab lwm yam. Ntawm lawv, chromium feem ntau ua lub luag haujlwm antioxidant, thiab lwm yam muaj txiaj ntsig ntawm kev ntxiv dag zog rau cov nplej thiab cov ciam teb. Nws muaj cov neeg kho tshuab siab thiab kev ruaj ntseg zoo ntawm qhov kub ntawm 600 mus rau 1000 degree, yog li nws feem ntau siv rau hauv kev ua tub rog aviation, foob pob ua ntxaij thrusters thiab kub-kub Cheebtsam rau lub zog hloov dua siab tshiab. Nickel-based heat-resistant alloys tau tsim nyob rau xyoo 1930s lig thiab tom qab ntawd maj mam nce mus rau kev taw qhia crystallization thiab ib leeg-crystal tshav kub-resistant alloys thiab hmoov metallurgy superalloys. Txhawm rau ua kom tau raws li qhov xav tau sai ntawm kev lag luam shipbuilding thiab loj-scale Hoobkas roj cav, ib tug series ntawm corrosion-resistant, kub-resistant, thiab structurally ruaj khov nickel-chromium alloys tau tsim tom qab 1960s. Nrog rau kev hloov tshiab ntawm thev naus laus zis, qhov kub tsis kam ntawm cov nickel-based alloys tau maj mam nce ntawm 700 degree mus rau 1200 degree, thiab nce ntawm tus nqi ntawm 15 degree txhua xyoo. Cov laj thawj tseem ceeb vim li cas nickel-raws li alloys tau siv dav yog: ua ntej, muaj ntau yam alloying ntsiab lus yaj hauv nickel-raws li alloys, thiab ntau yam qauv yog qhov ruaj khov; thib ob, lawv tuaj yeem tsim ntawm cov hlau sib txuas hu ua A3B hom [Ni3(Al, Ti)] Mutually. Kev sib koom ua ke thiab tsis tu ncua ntawm qhov sib xyaw ua ke no txhim kho lub zog ntawm cov alloy rau qee qhov, ua rau nws ntau dua li lwm hom hlau alloys ntawm qhov kub thiab txias; Nws yog cov khoom siv npib tsib xee hauv cov nickel-raws li alloys uas muaj qhov zoo oxidation tsis kam tshaj hlau thiab corrosion kuj.
