Kev faib tawm ntawm cov hlau tsis-ferrous thiab titanium alloys

titanium alloys yog cov alloys tsim los ntawm titanium raws li kev sib ntxiv ntawm lwm cov ntsiab lus. Titanium muaj ob hom homogeneous heterocrystals; titanium yog homosolar isomer, melting point ntawm 1720 degree C nyob rau hauv tsawg dua 882 degree C yog ib tug tuab kab ntawm hexagonal siv lead ua lattice qauv, hu ua titanium; nyob rau hauv 882 degree C saum toj no lub cev-centered cubic lattice qauv, hu ua B titanium, kev siv titanium cov yam ntxwv sib txawv ntawm cov saum toj no ob lub qauv, ntxiv cov ntsiab lus alloying tsim nyog, kom lub sij hawm hloov pauv kub thiab cov ntsiab lus ntawm theem. feem yog maj mam hloov mus rau ib qho titanium alloy nrog cov koom haum sib txawv.

Titanium alloy cov ntsiab lus tuaj yeem muab faib ua peb pawg raws li lawv cov kev cuam tshuam ntawm theem hloov pauv kub: ① stabilize ib theem, txhim kho cov theem hloov kub ntawm cov ntsiab lus rau stabilizing ntsiab, txhuas, magnesium, oxygen thiab nitrogen, thiab lwm yam.. lub ntsiab alloying lub ntsiab ntawm titanium alloy, uas muaj kev pom tseeb los ntawm kev txhim kho lub zog ntawm cov hlau nyob rau hauv chav tsev kub thiab kub, txo cov kev nqus thiab nce elasticity. ② Lub hauv paus ruaj khov B theem thiab txo cov theem hloov pauv kub yog B stabilizing caij. Thiab tuaj yeem muab faib ua homocrystalline thiab eutectic hom ob, yav tas los muaj molybdenum, niobium, vanadium, thiab lwm yam: tom kawg muaj chromium, manganese, tooj liab, silicon, thiab lwm yam. cov khoom, xws li zirconium thiab tin.

ib tug titanium alloy

Nws yog ib-theem hlau alloy tsim los ntawm ib-theem khoom yaj, txawm nyob rau ntawm qhov kub thiab txias ntawm cov kev siv ntau dua, yog ib-theem, ruaj khov lub koom haum, hnav tsis kam yog siab dua cov ntshiab titanium, oxidation kuj, nyob rau hauv qhov kub thiab txias. ntawm 500 degree C ~ 600 degree C, tseem tuav nws lub zog thiab creep tsis kam, tab sis tsis tuaj yeem muaj zog los ntawm kev kho cua sov, chav sov lub zog tsis siab.

B titanium alloy

Nws yog ib theem-theem alloy tsim los ntawm B-theem khoom yaj, nrog lub zog siab yam tsis muaj kev kho cua sov, thiab cov hlau txuas ntxiv muaj zog ntxiv tom qab quenching thiab aging, thiab lub zog ntawm chav tsev kub tuaj yeem ncav cuag 1,372 ~ 1,666MPa; Txawm li cas los xij, nws muaj qhov tsis zoo thermal stability, thiab nws tsis tsim nyog siv rau qhov kub thiab txias.

a + B titanium alloy

Nws yog ob-theem alloy nrog zoo zuag qhia tag nrho kev ua tau zoo, zoo koom haum stability, zoo toughness, plasticity thiab high-temperature deformation zog yuav ua tau zoo dua rau kub siab ua, quenching, laus kom lub alloy muaj zog. Lub zog tom qab kev kho cua sov yog li 50% ~ 100% siab dua lub xeev annealed; Lub zog kub kub, tuaj yeem ua haujlwm ntev hauv qhov kub ntawm 400 degree ~ 500 degree. Lub thermal stability yog qhov thib ob ntawm cov hlau alloy. Nws thermal stability yog thib ob rau titanium alloy.

Peb titanium alloys feem ntau siv yog titanium alloy thiab a + B titanium alloy; titanium alloy txiav thiab ua tiav qhov zoo tshaj plaws, a + B titanium alloy yog thib ob, B titanium alloy yog qhov phem tshaj. titanium alloy code rau TA, B titanium alloy code rau TB, a + B titanium alloy code rau TC.

Titanium alloys tuaj yeem muab faib ua cov hlau tsis muaj cua sov, cov alloys muaj zog, corrosion-resistant alloys (titanium - molybdenum, titanium - palladium alloys, thiab lwm yam), tsis kub-kub alloys, thiab tshwj xeeb muaj nuj nqi alloys (titanium - hlau hydrogen cia cov ntaub ntawv. thiab titanium - nickel nco alloys) thiab lwm yam raws li kev siv.