ALLOY B-2, UNS N10665

Alloy B-2 UNS N10665

Kakaretso

Nickel-molybdenum alloy e thibelang kutu, Alloy B-2 e bonts'a khanyetso e matla ea kutu mecheng ea litaba e fokotsang matla joalo ka hydrochloric acid ka mefuta e fapaneng ea mocheso le likhakanyo, hammoho le sulfuric acid e bohareng le e nang le chloride e fokolang. tshilafatso. E ka boela ea sebelisoa ho acetic le phosphoric acid, le ho mefuta e mengata ea organic acid. Alloy e na le khanyetso e ntle ea chloride-induced stress corrosion cracking (SCC).

Standard
Mefuta ea Lihlahisoa

Pipe, tube, sheet, plate, round bar, flanes, valve, le forging.

Moedi oa Sebopeho sa Likhemikhale,%

	Min.	Max.		Min.	Max.		Min.	Max.
Ni	Mesala	Cu		0.5	C		0.02
Cr		1.0	Co		1.0	Si		0.1
Fe		2.0	Al			P		0.04
Mo	26.0	30.0	Ti			S		0.03
W			Mn		1.0	N

Ea nama
Kamehla

Boima ba 'mele,g/cm3		9.2
Melting Range, ℃		1330-1380

E tloaelehileng
Mechini
Thepa

(E na le tharollo)

Mefuta ea lihlahisoa	Kotulo e matla	Tensile strenth	Elongation	Brinell
thatafalo
Letlapa la Letlapa	340	755	40	250
Rod Bar	325	745
Pipe Tube	340	755

Microstructure

Alloy B-2 e na le sebopeho sa sefahleho se bohareng ba li-cubic. K'hemik'hale e laoloang ea alloy e nang le bonyane ba tšepe le chromium e fokotsa kotsi ea ho ba le embrittlement nakong ea ho etsoa, kaha sena se thibela pula ea Ni4Mo phase mocheso oa 700-800 ℃.

Litlhaku

1. Kemistri e laoloang ka bonyane ba tšepe le chrlmium ho thibela ho thehoa ha β-phase Ni4Mo e laetsoeng;
2. Ho hanyetsa ha kutu ho bohlokoa ho fokotsa tikoloho;
3. Ho hanyetsa ka mokhoa o babatsehang ho sulfuric acid e bohareng-concentrated le palo ea li-non-oxidizing acid;
4. Ho hanyetsa ho hotle ho phunyeha ha chloride-induced stress-corrosion cracking (SCC);
5. Ho hanyetsa hantle mefuta e mengata ea li-organic acid.

Khanyetso ea Corrosion

Likahare tse tlase haholo tsa khabone le silicon tsa Hastelloy B-2 li fokotsa pula ea li-carbide le mekhahlelo e meng sebakeng se anngoeng ke mocheso oa li-welds le ho netefatsa ho hanyetsa kutu ho lekaneng esita le maemong a cheselitsoeng. Hastelloy B-2 e bonts'a khanyetso e ntle ea kutu ka mecheng e matla e fokotsang joalo ka hydrochloric acid ka har'a mefuta e mengata ea mocheso le likhakanyo, hammoho le ka sulfuric acid e nang le sulfuric e nang le tšilafalo e fokolang ea chloride. E ka boela ea sebelisoa ka acetic le phosphoric acid. Optimum corrosion resistance e ka fumanoa feela haeba thepa e le boemong bo nepahetseng ba metallurgical 'me e bontša mohaho o hloekileng.

Lisebelisoa

Alloy B-2 e sebelisoa mefuteng e mengata ea lik'hemik'hale indastering ea ts'ebetso ea lik'hemik'hale, haholo-holo bakeng sa mekhoa e amanang le sulphuric, hydrochloric, phosphoric le acetic acid. B-2 ha e khothalletsoe hore e sebelisoe ka pel'a letsoai la ferric kapa cupric kaha matsoai ana a ka baka ho senyeha ha kutu ka potlako. Matsoai a ferric kapa cupric a ka hlaha ha hydrochloric acid e kopana le tšepe kapa koporo.

Nako ea poso: Nov-11-2022