"Superalloys" Formed in the Basis Metal!
Alloy Types | Alloy Properties | Alloy Characteristics ]

PLEXUS® processes for the deposition of boron compounds utilizes chemical vapor deposition reactions by the pack cementation method to optimize the formation of borides with other selected elements in various basis metals to achieve a desired alloy in the substrate of those basis metals. The boride alloys formed are an integral part of the basic metal. Their properties are controlled by a careful selection of the alloying elements in the system, and by suitable control of the thermodynamics and kinetics of deposition reactions. As a result of past experiments, we have selected the more promising alloying systems for commercial application.

TYPES OF BORIDE ALLOYS 
 Boride Silicide 
Penetration to .040" possible. Excellent for use where post heat-treatment is required, or for deposition of a precarburized substrate. 
 
Chromium Boride 
Penetration up to .020" economically realized. Excellent for wear contact with other systems. 
 
Boron Carbide
Penetration over .040" realized. Best system for use on 400 series stainless steels. 
 
Titanium Borocarbide
Penetrations up to .020" possible for extra hardness and galling resistance for titanium substrates.

LUBRICATED BORIDE ALLOYS

We are pleased to now have available all the properties of a Boride Alloy plus a dry self-lubricating surface.  This new and exciting multi-layer coating will further extend borides' resistance to wearing, galling, and friction.

OTHER ALLOYING SYSTEMS AVAILABLE

Boride coating systems for refractory metals (W, Ta, Cb, Mo bases) substrates.

Aluminide coating systems available for high temp oxidation and sulfidation on nickel and cobalt based substrates.  

Chromizing of steel substrates for hard low-coefficient of friction protection

REPRESENTATIVE APPLICATIONS

Rock Bit NozzlesValve Seats
Medical Circular Blades   High Pressure Water Nozzles
Metal Seal Faces      Chain Saw Teeth
Steam Nozzles   Friction Journals
Steel Cutting Tools    Extended Nozzles
Compressor Impellers      Slitter Knives
Pump Impellers  Ball Valves
Extrusion and Draw Dies Pump Casings
Wear Plates
Plexus® Boride Deposition Alloying
ALLOYED PROPERTIES IN FERROUS SUBSTRATES

                 abrasives.  Micro-hardness comparisons on steel using
  Knoop Indenter, 200gm, load, Tukon® micro-hardness   tester are shown below.

Carburized750 - 900 KHN       Chromium Plating   920 -1000 KHN
Nitrided             800 - 1100 KHN                    Borides     1500 - 2200 KHN

PROCESS CHARACTERISTICS


LIMITATIONS





Quality Services by People Who Care
HomeProductsServicesPlexus ®FacilitiesContact Us

Plexus® Boride Deposition Alloying
©Copyright Pump Services, Inc. 2004
This page was last updated: September 25, 2017
Top of Page