Titanium Alloy Welding
Nicyiciro kimwe kivanze kigizwe β -cyiciro gikomeye igisubizo. Hatabayeho kuvura ubushyuhe, bifite imbaraga zisumba izindi. Nyuma yo kuzimya no gusaza, amavuta aratera imbere.Intambwe imwe ikomeza, imbaraga zubushyuhe bwicyumba zishobora kugera kuri 1372 ~ 1666 MPa; Ariko ubushyuhe bwumuriro burakennye, ntibukwiye gukoreshwa mubushyuhe bwinshi.
Ni biphasic alloy, ifite imiterere yuzuye yuzuye, imiterere myiza ihamye, gukomera gukomeye, plastike hamwe nubushyuhe bwo hejuru bwo guhindura ubushyuhe, birashobora kuba byiza mugutunganya ingufu zishyushye, birashobora kuzimwa, gusaza kugirango bikomeze amavuta. Imbaraga nyuma yo kuvura ubushyuhe ziri hejuru ya 50% ~ 100% kurenza iyo nyuma ya annealing; Imbaraga z'ubushyuhe bwo hejuru, zishobora gukora muri 400 ℃ ~ 500 ℃ ubushyuhe igihe kirekire, ituze ryumuriro ni munsi ya α titanium.
Mu mavuta atatu ya titanium, ikoreshwa cyane ni α titanium alloy na α + β titanium; Gukata imikorere ya α titanium alloy nibyiza, bikurikirwa na α + β titanium alloy, na β titanium alloy ni mbi cyane. α titanium alloy code ya TA, code titanium alloy code ya TB, α + β titanium alloy code ya TC.
Umuti wa Titanium urashobora kugabanywamo ibice birwanya ubushyuhe, imbaraga nyinshi zivanze, amavuta arwanya ruswa (titanium - molybdenum, titanium - palladium alloy, nibindi), ubushyuhe buke hamwe nibikorwa bidasanzwe (titanium - ibikoresho byo kubika ibyuma bya hydrogène hamwe na titanium - nikel yibuka nikel alloy). Ibigize nibiranga ibisanzwe bisanzwe byerekanwe kumeza.
Ibice bitandukanye bigize ibice hamwe na microstructure ya titanium ivanze nubushyuhe irashobora kuboneka muguhindura uburyo bwo gutunganya ubushyuhe. Muri rusange abantu bemeza ko inyubako nziza zingana zifite plastike nziza, ituze ryumuriro nimbaraga zumunaniro. Imiterere ya spiculate ifite uburebure burambye, imbaraga zo kunyerera hamwe no gukomera kuvunika. Equiaxial na inshinge zimeze nkimvange zifite imiterere yuzuye. Titanium ni ubwoko bushya bwicyuma, imikorere ya titanium ifitanye isano nibiri muri karubone, azote, hydrogène, ogisijeni n’indi myanda, ibirimo umwanda wa titanium iyode irenze 0.1%, ariko imbaraga zayo ni nkeya, plastike nyinshi .
Ibiranga 99,5% yinganda za titanium nizo zikurikira: ubucucike ρ = 4.5g / cm cm, gushonga 1725 ℃, ubushyuhe bwumuriro λ = 15.24W / (mK), imbaraga zingana σb = 539MPa, kurambura δ = 25%, igice kugabanuka ψ = 25%, modulus ya Elastike E = 1.078 × 105MPa, ubukana HB195. Ubucucike bwa titanium alloy muri rusange bugera kuri santimetero 4.51g / kubic, 60% gusa byibyuma, imbaraga za titanium yera yegereye imbaraga zicyuma gisanzwe, imbaraga za titanium nyinshi zirenze imbaraga zibyuma byinshi byubaka. Kubwibyo, imbaraga zihariye (imbaraga / ubucucike) bwa titanium alloy irarenze cyane iy'ibindi bikoresho byubatswe, nkuko bigaragara mu mbonerahamwe 7-1. Irashobora gutanga ibice nibice bifite imbaraga zo murwego rwo hejuru, gukomera hamwe nuburemere bworoshye. Kugeza ubu, amavuta ya titanium akoreshwa mubice bya moteri, skeleton, uruhu, ibifunga hamwe nibikoresho byo kugwa.