Plasma electrolytic carbonitrided layer

Hardness over 2200 HV

A carbonitrided layer that hardens AISI 431 martensitic stainless steel to over 2200 HV without sacrificing corrosion resistance.

Liu, Ruiliang · Yi B. · Zhiguo, Li · Quanli, Liu

Surfaces and Interfaces 2025

Specifications

Hardened layer thickness

{'zh': '约5', 'en': '~5'} μm

Surface hardness improved

{'zh': '>2200', 'en': '>2200'} HV0

Advantages

Corrosion current density in 3.5 wt.% NaCl reduced by an order of magnitude