Patent ID: 11965493
Assignee: CENTRAL SOUTH UNIVERSITY
Field: Surface technology, coating (Chemistry)
Classification: CPC B  F  C | IPC B  F

Claim 4:
5. A method for preparing an adjustable deforming composite structure based on a hydrogen-induced expansion effect, wherein a composite is composed of a metal and a material, the metal has a hydrogen-absorbing expansion capability, and the material does not have the hydrogen-absorbing expansion capability or has a hydrogen-absorbing expansion capability less than the hydrogen-absorbing expansion capability of the metal under identical conditions, comprising:
preparing the adjustable deforming composite structure by a conventional metal preparation and processing method, the conventional metal preparation and processing method comprising at least one of rolling, forging, extrusion, diffusion welding, friction welding, and explosive cladding; or
preparing the adjustable deforming composite structure by a metal thin film preparation method, the metal thin film preparation method comprising at least one of chemical vapor deposition, physical vapor deposition, and electroplating; or
preparing the adjustable deforming composite structure by an additive manufacturing method, the additive manufacturing technology comprising at least one of powder-bed laser printing, electron beam selective melting, powder feeding laser or electron beam printing, electron beam freeform fabrication, binder jetting 3D printing, and powder stereolithography, wherein the composite composed of the metal and the material is in a metallurgical bonding at a joint, the metal and the material have a plasticity under a deforming activation with a material elongation of >2%, and there are no macro or micro cracks in the adjustable deforming composite structure when an entire material deforms due to an expansion of the metal.