Accumulative roll-bonding preparation method of nanometer lamellar phase enhanced TiNi alloy composite plate
A technology of accumulative stacking and nano-sheets, which is applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the difficulty of melting nano-sheet phase-reinforced TiNi-based composite materials, the distribution of reinforcement phases and the uneven size, etc. problems, to achieve the effect of low equipment requirements, easy regulation, and simple preparation process
Active Publication Date: 2015-11-04
HARBIN ENG UNIV
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The invention provides an accumulative roll-bonding preparation method of a nanometer lamellar phase enhanced TiNi alloy composite plate. The method comprises the following steps: (1) the acid washing and the cleaning are performed for the surface of a TiNi shape memory alloy foil; (2) the mechanical polishing and the surface cleaning are performed for an enhanced pure metal foil; (3) a pretreated TiNi alloy foil and the enhanced pure metal foil are alternately laminated; and the outermost layer is guaranteed to be the TiNi alloy foil; (4) the TiNi alloy foil and the enhanced pure metal foil are laminated in a stainless steel or pure Ti package for vacuumizing; (5) n passes of accumulative roll-bonding are performed at a temperature of 400-800 DEG C; and (6) the vacuum annealing treatment is performed in a temperature range of 300-600 DEG C. The method has such advantages as simple process, convenience for control, low equipment requirements and easy realization of batch production. The nanometer lamellar phase enhanced TiNi alloy composite plate, prepared by the method, can be widely applied to such places as medical instruments, damping components and large-strain-capacity drivers.
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| Property | Measurement | Unit |
| Yield strength | >= 1.6 | GPa |
| tensile | MPa | |
| Particle size | Pa | |
| strength | 10 |
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