Titanium Alloy Welding
Motsoako oa pele o sebetsang oa titanium ke nts'etsopele e atlehileng ea motsoako oa Ti-6Al-4V United States ka 1954, ka lebaka la ho hanyetsa mocheso, matla, polasetiki, ho tiea, sebopeho, bokhoni ba ho chesehela, ho hanyetsa kutu le biocompatibility li ntle, 'me li fetoha ace alloy indastering ea alloy ea titanium, tšebeliso ea alloy e ikarabella bakeng sa 75% ~ 85% ea alloy eohle ea titanium. Lisebelisoa tse ling tse ngata tsa titanium li ka bonoa e le liphetoho tsa li-alloys tsa Ti-6Al-4V.
Lilemong tsa bo-1950 le bo-1960, e ile ea hlahisa motsoako oa mocheso o phahameng oa titanium bakeng sa enjene ea moea le motsoako oa titanium bakeng sa 'mele. Lilemong tsa bo-1970, ho ile ha etsoa alloy ea titanium e thibelang ho bola. Ho tloha lilemong tsa bo-1980, alloy ea titanium e thibelang kutu le alloy e matla e phahameng ea titanium li ile tsa ntlafatsoa hape. Thempereichara ea tšebeletso ea motsoako oa titanium e thibelang mocheso e eketsehile ho tloha ho 400 ℃ lilemong tsa bo-1950 ho ea ho 600 ~ 650 ℃ lilemong tsa bo-1990.
Ponahalo ea li-alloys tsa motheo tsa A2 (Ti3Al) le r (TiAl) li etsa titanium ka enjene ho tloha pheletsong e batang ea enjene (fan le compressor) ho isa pheletsong e chesang ea tataiso ea enjene (turbine). Li-alloys tsa sebopeho sa titanium li hola ho ea ho matla a phahameng, polasetiki e phahameng, matla a phahameng, boima bo phahameng, modulus e phahameng le mamello e phahameng ea tšenyo. Ho phaella moo, li-alloys tsa mohopolo oa sebopeho tse kang Ti-Ni, Ti-Ni-Fe le Ti-Ni-Nb li 'nile tsa ntlafatsoa ho tloha lilemong tsa bo-1970' me li ntse li sebelisoa haholo ho boenjiniere.
Hajoale, ho entsoe li-alloys tse makholo tsa titanium lefatšeng, tse nang le li-alloys tse 20 ho isa ho tse 30 tse tsebahalang haholo, joalo 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 is an isomer, melting point is 1668℃ , ka tlase ho 882℃ mohahong o teteaneng oa letamo la hexagonal, le bitsoang αtitanium; Ka holimo ho 882 ℃, sebopeho sa li-cubic lattice se bohareng ba 'mele se bitsoa β-titanium.
Ho ipapisitsoe le litšoaneleho tse fapaneng tsa meaho e 'meli e kaholimo ea titanium, likarolo tse loketseng tsa motsoako li ile tsa eketsoa ho etsa hore mocheso oa phetoho ea mohato le karolo ea karoloana ea li-alloys tsa titanium li fetohe butle-butle ho fumana li-alloys tsa titanium tse nang le lisele tse fapaneng. Mocheso oa kamore, motsoako oa titanium o na le mefuta e meraro ea sebopeho sa matrix, alloy ea titanium e arotsoe ka mekhahlelo e meraro e latelang: α alloy, (α + β) alloy le β alloy. China e emetsoe ke TA, TC le TB.Ke motsoako o le mong oa mohato o entsoeng ka tharollo e tiileng ea α-phase, ebang ke mocheso o tloaelehileng kapa mocheso o phahameng o sebetsang, ke karolo ea α, sebopeho se tsitsitseng, ho hanyetsa ho roala ho phahame ho feta titanium e hloekileng, khanyetso e matla ea oxidation. Tlas'a mocheso oa 500 ℃ ~ 600 ℃, matla a eona le khanyetso ea creep e ntse e bolokiloe, empa e ke ke ea matlafatsoa ke phekolo ea mocheso, 'me matla a eona mocheso oa kamore ha a phahame.