Abstract: A roll-bonded clad metal sheet and a method for producing a roll-bonded clad metal sheet is provided. The roll-bonded clad sheet includes a metallic base material layer and a metallic cladding material layer which are joined to one another by a metallurgical bond. The metallic cladding material layer includes a nickel-based material whose chemical composition includes, in % by mass, a proportion of more than 50% of Ni and a proportion of 3.1% of Nb. The metallurgical bond is obtained by a thermomechanical rolling process including a first rolling phase for prerolling, a second rolling phase for final forming and a cooling time between the first rolling phase and the second rolling phase, wherein a final rolling temperature of the second rolling phase is set to a value equal to or less than 880° C.
Type:
Grant
Filed:
August 10, 2017
Date of Patent:
May 31, 2022
Assignees:
voestalpine Grobblech GmbH, VDM Metals International GmbH
Inventors:
Franz Winter, Claudius Schindler, Franz-Josef Wahlers, Jutta Kloewer, Bodo Gehrmann, Heike Hattendorf