Subscribe to the EPMA Mailing List

Damage Induced By Thermal Shock In Hardmetals And Cermets

  • : Jose M. Sanchez1, Belen Lopez Ezquerra1, Nieves Rodriguez2, Roberto Martinez3, Federico Ibarreta3
  • : 1CEIT-IK4, 2IK4 LORTEK Technological Center, 3FMD CARBIDE
  • : PDF Download
  • : 2016

Abstract

Thermal shock damage has been investigated in a WC-7 wt.%Co hardmetal and in a TiMoCN-26 wt.%Ni cermet by measuring their loss of bending strength after repeated quenching in water. The behavior of the hardmetal is significantly better than that of the cermet, showing a less abrupt loss of strength as quenching temperature step increases. Experimental values are in good agreement with R parameter predictions, especially for the cermet. Biot numbers are low enough to neglect the effect of transient heat transfer phenomena. It is concluded that a low thermal expansion coefficient combined with high strength and toughness are critical parameters to ensure an optimum thermal shock resistance.

€25.00

Non-EPMA member price shown. If you are an EPMA member please log in for your discount.
If you are logged in as a member but are still seeing this message, please contact us at website@epma.com.
If you would like to find out about becoming an EPMA member, click here.
This product is currently only available to purchase via this website to companies with a valid EU VAT Number. If you are an individual or company without an EU VAT number wishing to purchase this, please contact EPMA directly at publications@epma.com. Alternatively, past Euro PM papers are available via ProQuest and Elsevier.
*
* This field is required
Go To Top