Session Details

Session 1: Aerospace/Defense Response to REACh

Abstract Number:

122

This presentation will cover development efforts to deposit an ‎intermediate nickel (strike) layer over ‎an active titanium surface, ‎which will serve as a bond promoter for subsequent coatings. The ‎‎detailed process that includes novel pretreatments and strike bath ‎chemistry will be discussed, along ‎with the methodologies to ‎enable a stable and repeatable process that includes statistical ‎methods.‎

Topics:

Aerospace / Defense / Military

Electroplating is a low-cost method to transform surface properties while maintaining the ‎bulk properties of the base material. The aerospace industry uses plating to cover a wide ‎array of application spaces such as corrosion protection, wear resistance, conductivity and ‎decorative appearance for its hardware. Despite its high cost, titanium and its alloys are ‎used in place of aluminum for carbon fiber composite structures due to a high corrosion ‎resistance provided by an extremely stable oxide layer. Unfortunately, this same oxide layer ‎makes plating this material a challenge due to inadequate adhesion. Past methods have ‎proven ineffective to meet the demands of aerospace hardware, so the industry relies on ‎other coating methods such as painting, thermal spray or physical vapor deposition to meet ‎their design requirements. However, recent cost and design drivers have highlighted a need ‎to develop reliable plating techniques for titanium. This presentation will cover ‎development efforts to deposit an intermediate nickel (strike) layer over an active titanium ‎surface, which will serve as a bond promoter for subsequent coatings. The detailed process ‎that includes novel pretreatments and strike bath chemistry will be discussed, along with the ‎methodologies to enable a stable and repeatable process that includes statistical methods. ‎

PLATING OF TITANIUM AND TITANIUM ALLOYS FOR AEROSPACE ‎APPLICATIONS

Edgardo Reyesbrondo

Engineer, Test & Technology Boeing Research & Technology

The Boeing Company