Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm hluav taws xob cua sov alloys?

Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm hluav taws xob cua sov alloys?

Qhov zoo thiab qhov tsis zoo:

1. Lub ntsiab zoo thiab qhov tsis zoo ntawm cov hlau chromium aluminium alloy series: Qhov zoo: Cov hlau chromium aluminium hluav taws xob cua sov alloy muaj qhov kub thiab txias, nrog rau kev ua haujlwm siab tshaj plaws txog li 1400 degrees Celsius (0Cr21A16Nb, 0Cr27A17Mo2, thiab lwm yam), lub neej ntev kev pab cuam, siab nto load, zoo oxidation kuj, siab resistivity, thiab tus nqi qis. Disadvantages: Feem ntau yog vim tsis tshua muaj high-temperature lub zog, lub plasticity nce nrog rau qhov nce ntawm kev siv kub, thiab cov khoom yog nquag deformation thiab tsis yooj yim rau khoov thiab kho.

2. Lub ntsiab zoo thiab qhov tsis zoo ntawm cov nickel chromium hluav taws xob cua sov alloy series yog: qhov zoo: qhov kub thiab txias lub zog yog siab dua li ntawm cov hlau chromium aluminium, nws tsis yooj yim rau deform nyob rau hauv qhov kub kub siv, nws cov qauv tsis yooj yim hloov, nws cov plasticity zoo, nws yog ib qho yooj yim los kho, nws cov hluav taws xob hluav taws xob yog siab, nws tsis yog hlau nplaum, muaj zog corrosion kuj, thiab muaj lub neej ntev kev pab cuam. Qhov tsis zoo: Vim yog siv cov khoom siv tsis tshua muaj nickel hlau, tus nqi ntawm cov khoom siv no yog ob peb zaug siab dua li ntawm cov hlau chromium aluminium, thiab qhov kev siv kub qis dua li ntawm cov hlau chromium aluminium.

Kev ua tau zoo ntawm cov hluav taws xob cua sov alloys

① Nws yuav tsum muaj qhov zoo oxidation tsis kam (los yog tsis kam mus rau nruab nrab cua yaig) thiab txaus creep tsis kam ntawm qhov kub thiab txias Nws yuav tsum muaj ib tug siab resistivity, nrog ib tug kub coefficient raws li tsawg li sai tau, thiab muaj peev xwm tiv taus tam sim no loj Nws yuav tsum muaj zoo metallurgical. ntau lawm txheej txheem kev ua tau zoo thiab kev tsim khoom ua haujlwm.

Xyoo 1906, AL Marsh hauv tebchaws Askiv tau tsim cov nickel chromium hluav taws xob cua sov alloy Cr20Ni80, thaum FB Lounsberry hauv Tebchaws Meskas tau tsim nws xyoo 1929 thiab Soviet Union Kolnilov (И.И.корнилов) Xyoo 1934, lub cev muaj zog ntawm Fe Cr Al. alloys nrog Al2-6% thiab Cr7-13% ntxiv rau hlau tau kawm. Rau lub hauv paus no, Fe-Cr-Al hom hluav taws xob cua sov alloy yog npaj. Tuam Tshoj ua ob hom hluav taws xob cua sov alloys uas tau hais los saum toj no hauv xyoo 1949. Nyob rau xyoo 1970, muaj ntau tshaj 30 hom hluav taws xob cua sov alloys tsim thiab siv nyob rau hauv ntau lub teb chaws, tab sis tsuas yog ob peb lub npe muaj cov ntim ntau lawm thiab ntau yam kev siv. .

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