Planning and application of titanium alloy valve

Industrial pure titanium titanium refers to non titanium alloys with different Fe, C, N, O and other impurities content. Industrial pure titanium can not be heat treatedstrengthening, molding excellent performance, easy welding and brazing. The practical application of industrial pure titanium widely, research found that a typicaldeformation of industrial pure titanium; typical casting pure titanium. Titanium alloywith titanium, alloy by adding Al, Sn, Cr, Mo and Mn elements. titanium alloy usually inannealing state phase classification, divided into alpha, beta and alpha + beta type titanium alloy. The main components of titanium alloy for alloy Ti with Al, Sn, Cr, alpha stable elements, the return of state organization for a solid solution. Titanium alloy can not be strengthened by heat treatment, its strength than the beta and alpha + betatype titanium alloy is low, but keep the high temperature strength and good in 500 ~ 600 ℃ when in use. The welding properties, casting properties, pressure processingperformance, stability and no cold brittle good with titanium alloy, disadvantage is thelow technology of plastic and the hydrogen embrittlement sensitivity. Titanium alloy sheet is widely used in practice, the typical alpha type deformation of titanium alloy. The maincomponents of beta type titanium alloy for alloy Ti with Cr, Mo, V and other elements,this kind of alloy after quenching process are beta crystallology organization, strength and impact toughness of high pressure processing performance, and good welding performance. But the performance of titanium alloy microstructure instability, melting process complex, less application. Stable beta titanium alloy. The microstructure ofalpha + beta type titanium alloy for α + β organization, is in the steady state with 5% ~ 25% beta and beta zone from rapid cooling forming alpha + beta titanium alloy phase alpha martensite, which can be strengthened by heat treatment quenching and aging treatmen.