Method of producing a nano-twinned titanium material by casting
AssigneeSandvik Intellectual Property AB
InventorGuocai Chai
Life of this patent
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Abstract
A method of producing a nano twinned commercially pure titanium material includes the step of casting a commercially pure titanium material, that apart from titanium, contains not more than 0.05 wt % N; not more than 0.08 wt % C; not more than 0.015 wt % H; not more than 0.50 wt % Fe; not more than 0.40 wt % O; and not more than 0.40 wt % residuals. The material is brought to a temperature at or below 0° C. and plastic deformation is imparted to the material at that temperature to such a degree that nano twins are formed in the material.
Claims19
A method of producing a nano twinned commercially pure titanium material, comprising the steps of:
- casting a commercially pure titanium material that apart from titanium contains not more than 0.05 wt % N, not more than 0.08 wt % C, not more than 0.015 wt % H, not more than 0.50 wt % Fe, not more than 0.40 wt % O, and not more than 0.40 wt % residuals;
- bringing the casted material to a temperature at or below 0° C.;
- and
- subsequently imparting plastic deformation to the material at the temperature and a rate of less than 2% per second such that nano twins are formed in the material, the material having a yield strength of above 700 MPa and a tensile strength strength of above 750 MPa.
Dependencies are inferred from the claim text.