Method of conditioning an object of shape-memory metallic alloy with two reversible shape-memory states and an object thus obtained

摘要

The invention relates to a method of conditioning an object in shape- memory material of metallic alloy type.PPThe object formed to final shapes and dimensions constituting the first shape- memory state is submitted to a thermal treatment in order to bring this object to an austenitic crystallographic phase, then to cooling. The object is then submitted in at least one deformation zone to a process of education consisting of imposing on the object, in at least one cycle, a series of thermal and/or mechanical stresses. The stresses are such as to lead to deformation of the object for bringing it to a shape close to its second shape-memory state in a martensitic crystallographic state, then to permit the return of the object to its first shape-memory state, on a return of the object to the austenitic crystallographic state.P PApplication to electric contact elements.