Composite material
View Patent ↗A composite material includes a clad material including a base material that includes an iron-chromium alloy and vibration-damping layers that are provided on both surfaces of the base material and include a metal to suppress a vibration. A total thickness of the vibration-damping layers provided on the both surfaces of the base material is in a range of not less than 10% and not more than 40% relative to a total thickness of the clad material.
1. A composite material, comprising:
a clad material comprising a base material consisting essentially of a ferrite-based stainless steel not containing nickel and vibration-damping layers that are provided on both surfaces of the base material and comprise a metal to suppress a vibration,
wherein each of the vibration-damping layers consists essentially of at least one of pure nickel, pure iron, pure magnesium, Al-78Zn, and Mg-0.6Zr,
wherein a total thickness of the vibration-damping layers provided on the both surfaces of the base material is in a range of not less than 10% and not more than 40% relative to a total thickness of the clad material.
2. The composite material according to claim 1 , the clad material has a tensile strength of not less than 400 MPa at 200° C.
3. The composite material according to claim 1 , wherein the clad material has a total thickness of not less than 1 mm and not more than 5 mm.
4. The composite material according to claim 1 , wherein the vibration-damping layers comprise a same material and have substantially a same thickness.
5. The composite material according to claim 1 , wherein the clad material and the vibration-damping layers are bonded at all points between their mutually-contacting surfaces.
6. A composite material, comprising:
a clad material comprising a base material that comprises an iron-chromium alloy and vibration-damping layers that are provided on both surfaces of the base material and comprise a metal to suppress a vibration,
wherein a total thickness of the vibration-damping layers provided on the both surfaces of the base material is in a range of not less than 10% and not more than 40% relative to a total thickness of the clad material,
wherein the clad material has a damping coefficient of not less than 4.5% at 200° C.