Diffuson Coatech

A deep tech surface engineering company providing wear and corrosion resistant coatings and diffusions to enhance the product durability.

Solutions offered:

MetaBoid
Chromizing
Aluminizing
Boronizing
Electroless Nickel Boron

What is MetaBoid ?

A hybrid (Thermal diffusion-Chemical vapor deposition) process

MetaBoid is a thermochemical vapor diffusion process producing metal compounds with the substrate material. The surface hardness is easily 3X higher than nitriding process.

Vapor deposition and Vapor diffusion comparison

High chances of delamination
High stress on the interface
A functional layer is developed on the steel surface
May require a interface layer

High adhesion strength
Forms compounds with the base metal
Thermal stability
High bonding strength

Friction

This process reduces the coefficient
of friction of the base material
without the use of any lubricant.

Wear resistance

By altering the chemistry of surface of a material with minimal effect on core micro-structure to produce
hard case through a process called surface alloying by diffusion.

Corrosion resistance

Salt spray tests indicate increased
corrosion resistance in ferrous
alloys. Remarkable resistance to
acid attack has been observed in
treated carbon steel.

MetaBoid & TUNGSTEN CARBIDE

MetaBoid is a diffusion coating with practically
infinite bonding strength with zero chance of delamination

Extremely high hardness,
can be achieved. (2200 HV+)
1.8 times higher wear resistance

Least surface roughness. Heat resistance up to 625 °C.
Resistance against HCl, and other acids.
Relatively lower cost.

Tungsten carbide based coatings are mostly sprayed
onto metal and have very low bonding strength and often delaminate

Relatively low hardness is only
possible. Maximum hardness
is 1300 HV only

High surface roughness, often grinding is required.
Lower temperature resistance little resistance to acids
Expensive (Minimum Rs. 35/ Sq. Inch)

Contact Details

NO. 25, SIDCO INdustrial Estate, Thaneer Kulam, Thiruvallur, 602025

Operating Hours: - Monday to Friday 08:30 AM – 05:00 PM

CIN: U52341MP2022PTC052891

Designed and developed by

Diffuson Coatech