Thermochemical Treatment of Porous Materials Produced from Low-Carbon Steel Fibers

 
O.Kirichenko,
 
A.Gayduchenko,
  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2012, #09/10
http://www.materials.kiev.ua/article/1084

Abstract

The base material produced from St10 low-carbon steel fibers (40–100 µm in diameter) is subjected to different types of thermochemical treatment: solid-phase contact diffusion nickel-plating followed by gas contact diffusion chromium-plating, cementation, quenching, and tempering; solid-phase contact diffusion nickel-plating followed by chromium-plating and cementation; gas high-temperature nitrogen hardening and cementation; contact gas borating. It is established that the yield stress (σ0,2) of these materials after this thermal treatment is two to six times higher than that of the base material.


POROUS FIBROUS MATERIALS, THERMOСHEMICAL TREATMENT