Titanium Alloy Welding
Yekutanga inoshanda titanium alloy budiriro yakabudirira yeTi-6Al-4V alloy muUnited States muna 1954, nekuda kwekudzivirira kwayo kupisa, simba, purasitiki, kuoma, kuumbwa, kugona kweld, corrosion resistance uye biocompatibility zvakanaka, uye inova iyo. ace alloy mune titanium alloy indasitiri, iyo alloy kushandiswa kwakaverengera 75% ~ 85% yeese titanium alloy. Mamwe akawanda akawanda titanium alloys anogona kuonekwa sekugadziriswa kweTi-6Al-4V alloys.
Mumakore ekuma1950 nema1960, yainyanya kugadzira tembiricha yetitanium alloy yeaero-injini uye chimiro chetitanium alloy yemuviri. Mumakore ekuma1970, batch ye corrosion resistant titanium alloy yakagadzirwa. Kubva kuma1980s, corrosion resistant titanium alloy uye high simba titanium alloy zvakawedzera kuvandudzwa. Tembiricha yebasa retitanium inodzivirira kupisa yakawedzera kubva pa400 ℃ muma1950 kusvika pa600 ~ 650℃ muma1990.
Kuonekwa kweA2 (Ti3Al) uye r (TiAl) base alloys inoita titanium muinjini kubva kunotonhora kupera kweinjini (fan uye compressor) kusvika kunopisa kunopisa kweinjini (turbine) kutungamira. Structural titanium alloys inokura yakananga kusimba rakakwirira, purasitiki yakakwira, simba rakawanda, kuomarara kwepamusoro, yakakwira modulus uye kushivirira kwekukuvara kwakanyanya. Uye zvakare, maumbirwo ekurangarira maalloys akadai seTi-Ni, Ti-Ni-Fe uye Ti-Ni-Nb akagadzirwa kubva kuma1970 uye ari kuwedzera kushandiswa muinjiniya.
Parizvino, mazana etitanium alloys akagadzirwa munyika, aine makumi maviri kusvika makumi matatu emhando dzakakurumbira alloys, Senge 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 is an isomer, melting point is 1668℃ , pazasi 882 ℃ mune dense hexagonal lattice chimiro, inonzi αtitanium; Pamusoro pe882 ℃, iyo body-centered cubic lattice chimiro inonzi β-titanium.
Zvichienderana nehunhu hwakasiyana hwezvimiro zviviri zviri pamusoro zvetitanium, alloying alloying akakodzera akawedzerwa kuita chikamu chekushandura tembiricha uye chikamu chechikamu chemukati chetitanium alloys chinoshanduka zvishoma nezvishoma kuti chiwane titanium alloys ane matishu akasiyana. Patembiricha yekamuri, titanium alloy ine mhando nhatu dzematrix chimiro, titanium alloy yakakamurwa muzvikamu zvitatu zvinotevera: α alloy, (α+β) alloy uye β alloy. China inomiririrwa neTA, TC uye TB.Icho chikamu chimwechete chealloy inoumbwa ne-α-phase yakasimba mhinduro, ingave pane tembiricha kana pakakwirira inoshanda tembiricha, iri α chikamu, yakagadzikana chimiro, kupfeka kuramba kwakakwira kupfuura yakachena titanium, yakasimba oxidation kuramba. Pasi pekushisa kwe 500 ℃ ~ 600 ℃, simba rayo uye kurwisana kwezvinokambaira zvichiri kuchengetedzwa, asi hazvigoni kusimbiswa nekurapa kwekupisa, uye simba rayo pakupisa kwekamuri harina kukwirira.