Assembly with spliced mechanical and corrosive properties

The invention discloses an assembly with spliced mechanical and corrosive properties. A thermoformed joint blank includes a first metal blank having an ultimate tensile strength of > = about 1300 MPa to < = about 2000 MPa and defining a first surface, a second metal blank having an ultimate tensile strength of > = about 400 MPa to < = about 1200 MPa and defining a second coated surface having a coating disposed thereon. The coating comprises aluminum and silicon, or in an alternative variant zinc. The third surface of the second metal blank is bonded to the first surface of the first metal blank to form a thermoformed bonded blank. A weld point is disposed along a boundary between the first and second metal blanks, the weld point configured to join the first and second metal blanks, where the weld point optionally comprises less than or equal to about 1.5 wt% aluminum or comprises a microstructure comprising austenite and delta ferrite. 本发明公开了具有拼接的机械与腐蚀性质的组件。热成形接合坯板，包括第一金属坯板，其具有≥大约1300 MPa至≤大约2000 MPa的极限抗拉强度并