Zirconium Alloys: Khoom, Kev Siv Tshuab thiab Daim Ntawv Thov Outlook

Zirconium alloys, raws li cov khoom siv hlau tseem ceeb, muaj nyob rau hauv lub ntiaj teb lub pob zeb ntawm cov ntsiab lus ntawm 0.026%, uas yog 2.5 npaug ntawm tooj liab. Lawv cov khoom tshwj xeeb ntawm lub cev thiab tshuaj lom neeg, xws li cov ntsiab lus melting siab, nruab nrab ntom ntom, lub zog zoo heev, qis coefficients ntawm expansion thiab me me modulus ntawm elasticity, nrog rau corrosion kuj nyob rau hauv ib tug ntau yam ntawm xov xwm, ua rau lawv tseem ceeb nyob rau hauv niaj hnub kev lag luam.
I. Kev ua tau zoo ntawm zirconium alloys
Zirconium alloys paub txog lawv qhov siab melting point, corrosion kuj, zoo heev zog thiab ua cov khoom. Tshwj xeeb, ob hom zirconium alloys, Zr-Sn system thiab Zr-Nb system, nrog cov txheej txheem tsim khoom thiab qib xws li Zr-2, Zr-4 thiab Zr-2.5Nb , yog dav siv nyob rau hauv ntau yam industrial teb.
Kev siv thev naus laus zis ntawm zirconium alloy
Lub tshuab ua cov zirconium alloys feem ntau suav nrog ob hom extrusion molding thiab forging molding.

Zirconium alloy extrusion molding
Zirconium alloy raj thiab tuav yog cov khoom siv tseem ceeb hauv cov tshuab hluav taws xob nuclear, suav txog li 75% ~ 80% ntawm tag nrho cov nyiaj siv. Cov raj thiab cov tuav no yog tsim los ntawm extrusion molding txheej txheem. Cov lubricants tshwj xeeb tau tsim los txhim kho cov txheej txheem extrusion thiab txo cov khoom tsis xws luag.
Zirconium alloy forging thiab sib sau
Forging yog ib kauj ruam tseem ceeb hauv kev tsim cov zirconium alloys thiab yog tsim los rhuav tshem lub koom haum li-cam khwb cia thiab txhim kho cov khoom hlau. Cov txheej txheem forging muaj ntau yam tsis xws li cov cua sov specifications, forging kub thiab forging khoom. Lub forging kub yog feem ntau tswj ntawm 950-1100 degree, siv nruab nrab thiab siab kub kuj rauv rau cua sov.
Thib peb, zirconium alloy thov thaj chaw
Nuclear kev lag luam
Zirconium alloy yog siv nyob rau hauv nuclear reactors raws li cov khoom tseem ceeb xws li roj casing hlab thiab tswj rods coj cov hlab, thiab nws cov tsis tshua muaj neutron absorption cross-section thiab zoo heev corrosion kuj ua rau nws ib tug indispensable khoom nyob rau hauv lub nuclear kev lag luam.
Dej hiav txwv tob thiab qhov chaw tshawb nrhiav
Zirconium alloys muaj peev xwm zoo rau kev siv nyob rau hauv ib puag ncig tshwj xeeb xws li kev sib sib zog nqus hiav txwv thiab qhov chaw tshawb nrhiav vim lawv cov coefficient me me ntawm thermal expansion thiab tsis kam rau irradiation puas.
Kev lag luam tshuaj
Zirconium alloys yog cov corrosion-resistant ntau yam acidic ib puag ncig, yog li lawv tau siv dav hauv kev lag luam tshuaj rau li qub, cov twj tso kua qaub thiab lwm yam khoom siv.
Kev kho hniav
Zirconia ceramics yog cov ntaub ntawv tseem ceeb hauv kev kho hniav vim lawv cov tshuaj lom neeg ruaj khov thiab biocompatibility.
Biomedical
+ dual-theem thiab ib-theem zirconium alloys muaj biocompatibility zoo nrog tib neeg cov ntaub so ntswg, thiab muaj peev xwm xaiv rau kev phais implantation alloys.
IV. Ntsiab rau zirconium alloy yas molding tshuab
Zirconium alloy yas txoj kev tsim muaj xws li forging, extrusion thiab dov. Muaj ntau yam cuam tshuam rau nws cov yas ua deformation, feem ntau suav nrog tus nqi strain, kub thiab lubrication tej yam kev mob. Optimizing cov kev txwv no yog qhov tseem ceeb rau kev txhim kho kev ua tau zoo thiab cov khoom zoo ntawm zirconium alloys.
Nrog kev nce qib ntawm kev siv tshuab thiab kev lag luam nthuav dav, daim ntawv thov kev cia siab ntawm zirconium alloy yuav dav dua. Nyob rau hauv lub neej yav tom ntej, zirconium alloy yuav qhia nws qhov tshwj xeeb zoo thiab tus nqi hauv ntau thaj chaw.