I-Hastelloy B: I-Corrosion-I-Vanguard Engazweli Ezindaweni Ezincishayo Ezonakele
Dec 23, 2025
Njenge-nickel-i-molybdenum-based corrosion{2}}resistant alloy, i-Hastelloy B isiphenduke into ebalulekile ezimbonini ezifana nobunjiniyela bamakhemikhali kanye ne-petroleum yokusingatha izindawo ezigqwala kakhulu, ngenxa yokusebenza kwayo okukhethekile kumithombo ye-asidi enciphisayo. Izinzuzo zayo zivelele kakhulu uma ziqhathaniswa nama-alloys afanayo.
Ezimweni ze-asidi enciphisayo njenge-hydrochloric acid ne-dilute sulfuric acid, ukumelana nokugqwala kwe-Hastelloy B akuyona into emfushane "njenge-benchmark." Ngokungafani ne-316L stainless steel, ehlushwa ukugqwala okusheshayo-ku-concentration hydrochloric acid emaphakathi, i-Hastelloy B ingasebenza ngokuzinzile ku-hydrochloric acid emazingeni okushisa angaphansi kuka-80℃. Uma kuqhathaniswa ne-nickel-i-chromium alloys (isb, i-Inconel 600) egxile ekuphikiseni i-oxidation, okuqukethwe kwayo okuphezulu kwe-molybdenum (26% -30%) kwakha ungqimba oluzinzile lwe-passive, olumelana ngempumelelo nokuguguleka kwe-hydrogen ion futhi kubhekwane nenkinga yokuwohloka kwefilimu engenzi lutho kuma-acids anciphisayo abhekene ne-latter.
I-Hastelloy B iphinde ivelele ezindaweni ezinciphisayo ezinokugxila kwe-ion ye-chloride ephezulu. Imelana nomgodi, ukugqwala kwemifantu, nokuqhekeka kwengcindezi. Uma kuqhathaniswa nama-titanium alloys, athambekele ekugxilweni kwe-hydrogen ku-reductive hydrochloric acid, noma ama-Monel alloys, antula ukumelana nokugqwala okwanele{2}}kumazinga okushisa aphezulu,{3}}okugxilwa kakhulu kwe-hydrochloric acid, i-Hastelloy B inikeza{4}ukuzinza kwesikhathi eside{4}okuphakeme. Ngisho nasemazingeni okushisa aphakeme-(200{8}}300℃) anciphisa ama-acids noma isibabule-equkethe imidiya{10}}njengezimo ezinzima zamayunithi e-petroleum hydrodesulfurization{11}igcina izakhiwo ezinhle kakhulu zemishini kanye nokugqwala, ukumelana nokugqwala{1}okungaqinile{1}okujwayelekile{1} i-nickel{13}}i-chromium-iron alloys.
Izinzuzo zayo ezihlukanisiwe ngaphezu kwamanye amamaki e-Hastelloy ziyaphawuleka: ku-hydrochloric acid ehlanzekile, ikhombisa ukumelana nokugqwala okungcono kunochungechunge lwe-Hastelloy C (oluhamba phambili emithonjeni exubile) ngezindleko eziphansi; ku-concentration-ephezulu ye-hydrochloric acid, ukumelana nokugqwala kwayo kudlula lokho kochungechunge lwe-Hastelloy G, egxile ekumelaneni ne-sulfuric acid.
Kusukela kumalabhorethri kuya kumasayithi ezimboni, i-Hastelloy B, kanye nezinzuzo zayo ezihlosiwe zokungagqwala-, ivela "njengesithiyo esivikelayo" ezindaweni ezinciphisa ukugqwala.
