ALLOY B-2, UNS N10665
| Aloyi B-2 UNS N10665 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Chidule | Aloyi ya nickel-molybdenum, Aloyi B-2 amawonetsa kukana kwa dzimbiri mwaukali pakuchepetsa zowulutsa, monga hydrochloric acid mumitundu yosiyanasiyana ya kutentha ndi ndende, komanso mu sing'anga-yokhazikika sulfuric acid ngakhale ndi chloride yochepa. kuipitsidwa. Angagwiritsidwenso ntchito mu acetic ndi phosphoric zidulo, komanso osiyanasiyana organic zidulo. Aloyiyi imakhala ndi kukana bwino kwa chloride-induced stress corrosion cracking (SCC). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Standard Mafomu a Zamalonda | Chitoliro, chubu, pepala, mbale, mipiringidzo yozungulira, magalasi, ma valve, ndi kupanga. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Kuchepetsa Kupanga Kwa Chemical,% |
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| Zakuthupi Nthawi zonse |
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| Chitsanzo Zimango Katundu |
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| Microstructure | Aloyi B-2 ali ndi nkhope-centered-cubic kapangidwe. Chemistry yoyendetsedwa ndi aloyi yokhala ndi chitsulo chocheperako ndi chromium imachepetsa chiwopsezo cha kutsekeka komwe kumachitika panthawi yopanga, chifukwa izi zimachepetsa mvula ya gawo la Ni4Mo pa kutentha kwa 700-800 ℃. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Makhalidwe | 1. Chemistry yoyendetsedwa ndi chitsulo chochepa ndi chrlmium kuti alepheretse mapangidwe a β-phase Ni4Mo; 2. Kukana kwa dzimbiri kumachepetsa chilengedwe; 3. Kukana kwabwino kwa sing'anga-monga sulfuric acid ndi ma acid angapo omwe si oxidizing; 4. Kukana kwabwino kwa kloride-induced stress-corrosion cracking (SCC); 5. Kukana kwabwino kwa mitundu yambiri ya organic acid. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Kukaniza kwa Corrosion | Mpweya wochepa kwambiri wa carbon ndi silicon wa Hastelloy B-2 umachepetsa mpweya wa carbides ndi magawo ena m'madera omwe amakhudzidwa ndi kutentha kwa ma welds ndikuwonetsetsa kukana kwa dzimbiri kokwanira ngakhale mumikhalidwe yowotcherera. Hastelloy B-2 imawonetsa kukana kwa dzimbiri mwaukali pakuchepetsa zowulutsa monga hydrochloric acid mumitundu yosiyanasiyana ya kutentha ndi ndende, komanso mu sing'anga-concentrated sulfuric acid ngakhale ndi kuipitsidwa kochepa kwa chloride. Itha kugwiritsidwanso ntchito mu acetic ndi phosphoric acid. Kukana kokwanira kwa dzimbiri kungapezeke pokhapokha ngati zinthuzo zili muzitsulo zolondola komanso zikuwonetsa mawonekedwe oyera. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mapulogalamu | Aloyi B-2 amagwiritsidwa ntchito m'njira zosiyanasiyana m'makampani opanga mankhwala, makamaka panjira zomwe zimaphatikizapo sulfuric, hydrochloric, phosphoric ndi acetic acid. B-2 siyovomerezeka kuti igwiritsidwe ntchito pamaso pa ferric kapena mchere wamchere chifukwa mcherewu ungayambitse kulephera kwa dzimbiri. Mchere wa ferric kapena cupric ukhoza kukula pamene hydrochloric acid ikhudzana ndi chitsulo kapena mkuwa. |
Nthawi yotumiza: Nov-11-2022