Titanium Alloy Welding
The mbụ bara uru titanium alloy bụ ihe ịga nke ọma mmepe nke Ti-6Al-4V alloy na United States na 1954, n'ihi na nke okpomọkụ eguzogide, ike, plasticity, siri ike, formability, weld ike, corrosion eguzogide na biocompatibility dị mma, na-aghọ Ace alloy na titanium alloy ụlọ ọrụ, ihe alloy ojiji emewo 75% ~ 85% nke niile titanium alloy. Ọtụtụ ndị ọzọ titanium alloys nwere ike hụrụ dị ka mgbanwe nke Ti-6Al-4V alloys.
Na 1950 na 1960, ọ tumadi mepụtara elu okpomọkụ titanium alloy maka aero-engine na structural titanium alloy maka ahu. N'afọ ndị 1970, e mepụtara ogbe titanium alloy na-eguzogide corrosion. Kemgbe afọ ndị 1980, a na-emepekwa alloy titanium na-eguzogide corrosion na elu ike titanium alloy. Okpomọkụ ọrụ nke titanium alloy na-eguzogide okpomọkụ abawanyela site na 400 ℃ na 1950 ruo 600 ~ 650 ℃ na 1990s.
Ọdịdị nke A2 (Ti3Al) na r (TiAl) base alloys na-eme ka titanium dị na engine site na njedebe oyi nke engine (fan na compressor) na njedebe na-ekpo ọkụ nke engine (turbine). Alloys titanium arụrụ arụ na-etolite n'ebe ike dị elu, plastik dị elu, ike dị elu, ịdị elu siri ike, modulus dị elu na nnabata mmebi dị elu. Tụkwasị na nke ahụ, a na-emepụta alloys ebe nchekwa dị ka Ti-Ni, Ti-Ni-Fe na Ti-Ni-Nb kemgbe 1970s ma na-ejikarị eme ihe na injinia.
Ka ọ dị ugbu a, e mepụtala ọtụtụ narị alloys titanium n'ụwa, yana 20 ruo 30 nke alloys ndị a ma ama, dị ka Ti-6Al-4V, Ti-5Al-2.5Sn, Ti-2Al-2.5Zr, Ti-32Mo. Ti-Mo-Ni, Ti-Pd, SP-700, Ti-6242, Ti-10-5-3, Ti-1023, BT9, BT20, IMI829, IMI834, etc.Titanium bụ isomer, agbaze ebe bụ 1668 ℃ , n'okpuru 882 ℃ na nnukwu hexagonal lattice Ọdịdị, nke a na-akpọ αtitanium; N'elu 882 ℃, a na-akpọ usoro lattice cubic nke dabere na ahụ β-titanium.
Dabere na njirimara dị iche iche nke ihe owuwu abụọ a dị n'elu nke titanium, agbakwunyere ihe ndị na-eme ka alloy kwesịrị ekwesị iji mee ka mgbanwe mgbanwe ọnọdụ okpomọkụ na akụkụ nke akụkụ nke titanium alloys gbanwee nwayọọ nwayọọ iji nweta alloy titanium nwere anụ ahụ dị iche iche. N'ime ụlọ okpomọkụ, titanium alloy nwere ụdị matrix atọ dị iche iche, a na-ekewa alloy titanium n'ime ụdị atọ ndị a: α alloy, (α + β) alloy na β alloy. TA, TC na TB nọchitere anya China.Ọ bụ otu na-adọ alloy esịnede α-phase siri ike ngwọta, ma na n'ozuzu okpomọkụ ma ọ bụ na elu bara uru ngwa okpomọkụ, bụ α frasi, ike Ọdịdị, eyi iguzogide dị elu karịa titanium dị ọcha, ike ọxịdashọn eguzogide. N'okpuru okpomọkụ nke 500 ℃ ~ 600 ℃, ya ike na creep eguzogide ka nọgidere na-enwe, ma ọ pụghị ike site okpomọkụ ọgwụgwọ, na ike ya na ụlọ okpomọkụ adịghị elu.