Daim ntawv thov ntawm Α-titanium Alloys, Α + Β-titanium Alloys, Β-titanium Alloys.

Feem ntau siv ntawm peb titanium alloys yog -titanium alloys thiab + -titanium alloys; -titanium alloys muaj qhov zoo tshaj plaws txiav thiab machinability, + -titanium alloys yog qhov zoo tshaj plaws tom ntej, -titanium alloys yog qhov phem tshaj. -titanium alloys yog coded TA, -titanium alloys yog coded TB, thiab + -titanium alloys yog coded TC.

Titanium alloys tuaj yeem muab faib ua cov hlau tsis muaj cua sov, muaj zog alloys, corrosion-resistant alloys (titanium-molybdenum, titanium-palladium alloys, thiab lwm yam). ) thiab titanium-nickel nco alloys). Cov muaj pes tsawg leeg thiab cov khoom ntawm cov alloys raug pom nyob rau hauv lub rooj.

Thaum tshav kub kub kho titanium alloys tuaj yeem hloov kho los ntawm kev kho cov txheej txheem kev kho cua sov kom tau txais cov theem sib txawv thiab cov txheej txheem microstructures. Nws feem ntau ntseeg tias lub koom haum zoo isometric muaj cov yas zoo, thermal stability thiab qaug zog; cov qauv acicular muaj siab durability, creep zog thiab tawg toughness; thiab cov qauv sib xyaw isometric acicular muaj cov khoom zoo tag nrho.

Titanium yog ib hom hlau tshiab. Cov khoom ntawm titanium muaj feem xyuam rau cov ntsiab lus ntawm impurities xws li carbon, nitrogen, hydrogen thiab oxygen. Cov ntsiab lus impurity ntawm purest titanium iodide tsis ntau tshaj 0.1%, tab sis nws lub zog qis dua thiab plasticity siab dua. 99.5% kev lag luam ntshiab titanium muaj cov khoom nram qab no: ceev ρ=4.5g/cm3, melting point 1725 degree, thermal conductivity λ=15.24W/(mK), tensile zog σb=539 MPa, elongation δ=25%, seem shrinkage ψ=25%, modulus ntawm elasticity E=1.078 × 105MPa, hardness HB 195.

Qhov ceev ntawm titanium alloy feem ntau yog nyob ib ncig ntawm 4.51g / cm3, tsuas yog 60% ntawm cov hlau. Qhov ceev ntawm ntshiab titanium yog ze rau cov hlau zoo tib yam. Lub zog ntawm ib co high-strength titanium alloys tshaj li ntawm ntau alloyed structural steels. Yog li ntawd, lub zog tshwj xeeb (lub zog / ntom) ntawm titanium alloys yog ntau dua li ntawm lwm yam khoom siv hlau. Cov khoom uas muaj lub zog siab, zoo rigidity, thiab lub teeb yuag yog qhia hauv Table 7-1. Titanium alloys yog siv rau aircraft engine Cheebtsam, skeletons, tawv, fasteners, thiab tsaws iav.