Amorphous Chrome

CVD Amorphous CrR

In development

  • Low temperature process (<400°C)
  • Non line-of-sight process
  • High corrosion and water resistance
  • Coating thickness from 1-50+μm
CVD Amorphous CrR
Hardness: 1400-2500 Vickers / 43 μm of CrC coating on A286 SS
Hardness: 1400-2500 Vickers / 43 μm of CrC coating on A286 SS

Uniformity on Complex Geometry

a-CrC Corrosion Resistance

8 μm of CrC on A286 showed no evidence of corrosion after 423 hours of ASTM G85, Annex 4 (SO2 salt spray)
8 μm of CrC on A286 showed no evidence of corrosion after 423 hours of ASTM G85, Annex 4 (SO2 salt spray)

Immersion corrosion testing per ASTM G31

SampleWeight loss (g)
Uncoated0.0300
Crystalline CrC0.0550
Amorphous CrC<0.0005
8740 Steel Fasteners
SampleWeight loss (mg)
30 min18 hrs
Uncoated2.544.0
DLC (8 μm)016.9
a-CrC (2 μm)01.4
a-CrC (2 μm) + DLC (8 μm)00
8740 Steel Fastener Weight Loss After HCl (15%) Submersion

Technologies

Designed by Quadra Systems