Effect of the dimensions of the alpha- and beta-phases on the fatigue life of titanium alloysThe cyclic life of (α+β)-titanium alloys depends on the size of the β-transformed phase. The maximum fatigue life has the VT6 alloy whose structure contains the smallest β-transformed phase. ...
The alpha phase is also strengthened by the addition of tin or zirconium. These metals have appreciable solubility in both alpha and beta phases and as their addition does not markedly influence the transformation temperature they are normally classified as neutral additions. As with aluminium, the ...
Titaniumis a transition metal occurring in several minerals including rutile andilmenite, which are well dispersed throughout the Earth’s crust. Even though titanium is as strong as some steels, its density is only half that of steel. Titanium is broadly used in a number of fields, including ...
The maximum fatigue life has the VT6 alloy whose structure contains the smallest β-transformed phase. The volume percentage of the initial α-phase and β-transformed phase as well as the dimensions of the α-phase have no effect on the cyclic life of (α+β)-titanium alloys....
Annealing was conducted in a tube furnace in an inert argon atmosphere (5 purity) at 850 °C (below the temperature of alpha ↔ beta allotropic transformation) for 24 hours. The sample was placed in a glass tube, closed, and flushed with argon for 2 hours to remove the remaining air ...
Formation of the omega and alpha phases on quenching and aging and of martensite under an applied stress has been studied in binary, beta isomorphous titanium alloys containing molybdenum, niobium and vanadium. Thermodynamic calculations using the regular solution approximation reveal that the beta phase...
Titanium alloy are divided into three main groups:alpha-phase,Beta-phase,and alpha-beta-phase.Grade 23 Ti 6AI 4V ELI alloy is an alpha-beta wrought alloy.The ELI stands for extra low interstitial For an alloy to be branded as an ELI product,it should be produced ...
The classification titanium alloys can be divided into three kinds according to the composition of phases: alpha alloy, (alpha + beta) alloy and beta alloy, and China is represented by TA, TC and TB respectively. Alpha alloy contains a certain amount of stable alpha element, and the ...
2. The simulation cell is relaxed such that the stress σ33 = 0, the strain component \({\epsilon }_{i3}^{\alpha /\beta }=0\) (i = 1, 2) and \({\epsilon }_{ij}^{\alpha /\beta }\) (i, j = 1, 2) are fixed at prescribed values during the ...
The role of the omega phase on the non-classical precipitation of the alpha phase in metastable beta-titanium alloys The metastable beta-Ti alloy, Ti-5553, has been he Fraser,Hamish,L.,... - 《Scripta Materialia》 被引量: 3发表: 2016年 Strengthening strategy for a ductile metastable β-...