Effect of heat treatment on the properties of β titanium plates

β stabilizing element more dissolved β titanium , and to decrease the lattice parameter β titanium . β stabilizing element are raised to make room temperature tensile strength of pure titanium , while reducing the plasticity index elongation .titanium rod General eutectoid elements larger than the role of isomorphic elements.
With molybdenum , vanadium , niobium , and chromium, manganese, iron , cobalt, titanium impact of nickel on the elastic modulus and shear modulus of the crystalline elements eutectoid elements. In the quenched state , the peak value of the curve caused by the hardening phase ω . It makes elastic modulus, shear modulus and strength increases , the plastic lower .

Eutectoid β stabilizing element after adding titanium compound phase formed under certain conditions . However, the elements added slowly titanium eutectoid , compound phase is difficult to occur . Such as titanium - chromium system , TiCr2 often after long time to appear . In the system of analysis of the titanium element and the fast , sub-eutectoid alloy composition can be produced by the decomposition of the supersaturated phase a small amount of compound precipitated from the dispersion strengthening effect .

Improve β stabilizing element content , can keep more of β -phase alloys , can reduce sensitivity to hydrogen embrittlement . Further, in the two-phase alloy , the increase in the content of β stabilizing elements may also increase the hardenability of the alloy.

Mo can improve the thermal salt stress corrosion resistance of titanium alloys . Cobalt , palladium,titanium stockists molybdenum and niobium titanium in reducing medium can improve the corrosion resistance.
--------------