Slurry Diffusion Aluminide Coatings (LSR®)

The LSR® process provides a flexible, compact and economical alternative for plain or modified aluminides internally and/or externally on Nickel, Cobalt, and Iron based alloys. The microstructure, chemistry and oxidation behaviour is similar or superior to the conventional high activity aluminide coatings.

LSR® is applied as a slurry and then diffused in a controlled environment furnace for ease of application. The LSR® process is used in manufacturing cells and turbine overhaul plants as a direct replacement for obsolete, uneconomical and environmentally inferior processes such as pack, hexivalent chrome bearing coating systems and electroplating.

The LSR® process is available in enhanced aluminide formulations – Silicon Aluminide, Platinum Aluminide, and Chrome Aluminide – all in slurry format eliminating reliance on undesirable plating processes.

The following Chart identifies Liburdi's various LSR® coatings. It is designed to assist customers in matching and selecting the coating type to the engine experience for various degradation modes.

Hot Section Solutions

Coating

Type I
(700°C+)

Type II
(900°C+)

Oxidation
(1000°C+)

Touch Up
Slurry

LSR Al

Poor

Poor

Good

Yes

LSR AlSi

Fair

Good

Good

Yes

LSR AlSiCr

Good

Good

Good

Yes

LSR PTAl

Poor

Good

Excellent

Yes

Download LSR Datasheet: click here

Liburdi Slurry Re-Coating

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