Changes in titanium standard and titanium alloy on aging

Titanium and titanium alloy produced in the rapid cooling of the metastable phase during aging are balanced organization would like to change. The main phase transition phase metastable decomposition of β, tempered martensite, a supersaturated phase decomposition.medical titanium plates The transition process as well as the combination of aging and deformation of titanium and titanium alloy is heat strengthened basis.

Eutectoid transformation of titanium and only the fast formation of eutectic β stabilizing element in the system, it may occur under certain conditions. Such as Ti-Cu binary alloy components Hypoeutectoid appeared very small pearlite lamellar structure at a cooling rate of 100 ℃ / sec. When this alloy isothermal treatment at a temperature below the pearlite formation can also occur non-lamellar body of Bessie. In general, this analysis of the changes in the organization of the alloy ductility decreases.

There is a martensitic transformation in titanium, the applied stress and strain will promote these phase transition process. Experiments show that, in a certain β stabilizing element content of metastable β phase exists strain (or stress) caused changes. But the strain transformation products remains controversial, some people believe that the six-party martensite a `, some people think, but is a combination of mechanical twins.tittanium bar It was also reported that the Ti-Mo alloy and Ti-V strain orthorhombic martensite product is a ", and to facilitate this process the aluminum Anyway, strain to improve the uniform elongation of the material and increase the anti- tensile strength and the ratio between the yield strength.