Formation of Structure and Properties during Sintering of Fe-Cr-C Alloys with the Vanishing Liquid Phase

 
A.Mikhaylov,
  
K.Chirik,
  
M.S.Tkachenko,
  

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, 2013, #01/02
http://www.materials.kiev.ua/article/909

Abstract

The possibility to increase the wear resistance and bending strength of Fe–Cr–C alloys with a high content of chromium carbide produced by powder metallurgy is studied. The regularities of structure and mechanical properties as a function of alloy composition and production conditions are determined. The conditions of sintering and composition of the alloys with a high content of chromium carbide ensuring high abrasive wear resistance, which is 1.5 times greater than that of alloy VK8, are found. The structure of the alloy is a composite of fine chromium carbides obtained by dosing of the liquid phase vanishing during sintering.


ALLOY, FE–CR–C SYSTEM, SINTERING, STRENGTH, STRUCTURE, WEAR RESISTANCE