公开(公告)号：US20250102028A1

公开(公告)日：2025-03-27

申请号：US18474516

申请日：2023-09-26

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： James Piascik ,  Bahram Jadidian ,  Mehrad Mehr ,  David Wang

IPC: F16D65/12 ,  C22C19/07 ,  C25D3/12 ,  C25D5/50 ,  F16D65/00 ,  F16D65/02 ,  F16D69/02

Abstract: A corrosion and wear-resistant brake disc is disclosed. The brake disc comprises a brake body having at least one braking surface, and a corrosion and wear-resistant coating electrodeposited on the braking surface. The corrosion and wear-resistant coating comprises a precipitation-hardened cobalt-phosphorus (CoP) alloy and exhibits a Vickers hardness of from about 900 to about 1050 HV. A method of preparing the brake disc is also disclosed, and comprises electrodepositing a cobalt-phosphorus (CoP) alloy onto at least one braking surface of a disc body to a thickness of at least about 150 μm to give a coated disc body. The method also comprises heat treating the coated disc body to precipitation harden the CoP alloy and give the corrosion and wear-resistant coating on the braking surface.