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Properties and Application of Various Thin Film Wear Resistant Coatings

  TiN TiN-T1 TiCN CrN TiAlN-T4 TiAlN-T3 GLT-1
  Titanium Nitride Titanium Carbonitride Chromium Nitride Titanium Aluminum Nitride Anti-friction Coating
Microhardness (HV 0.05) 2300 3000 3000 1750 3000 3500 3000
Coefficient of Friction against Steel (Dry). 0.4 0.4 0.4 0.5 0.4 0.4 0.2
Coating Thickness (μm) 2-4 2-4 2-4 2-6 2-4 2-4 2-4
Max. Working Temperature 600° C
1100° F
400° C
750° F
400° C
750° F
700° C
1300° F
800° C
1470° F
800° C
1470° F
800° C
1470° F
Coating Color Gold Gold Blue-Grey Silver-Grey Violet-Grey Violet-Grey Dark Grey
Key Characteristics Good general purpose. Good general purpose. High Hardness, good wear resistance, enhanced toughness. Good adhesion, good corrosion and oxidation resistance. Excellent oxidation resistance. Excellent oxidation resistance. Lubricity low tendency for adhesive wear.
Primary Applications Machining of iron based and high silicon cast aluminum material. Metal forming. Plastic molding. Machining of iron based and high silicon cast aluminum material. Metal forming. Plastic molding. For mechanically stressed cutting edges-machining difficult-to-machine steel alloys and high speed cutting where moderate temperatures are generated at the cutting edge. Aluminum under flood coolant. Machining copper, aluminum magnesium and titanium. Metal forming. Plastic molding. A multi-layer coating designed for a wide range of carbide, cermet and high speed steel tooling. Excellent for machining cast iron, stainless steel, nickel-based high temperature alloys and titanium alloys. Designed for high speed and semi-dry or dry machining operations. A specialized single layer coating designed specifically for use on carbide end mills for the machining of hardened steel workplaces. Designed for high speed and semi-dry or dry machining operations. Also aluminum steel castings, stainless steel. Precision components dry machining. Plastic molding.