Paper Title:
The Characterization of WC-Co Based Materials Boronized within Molten Salt Bath
  Abstract

Coated WC-Co based cutting tool materials are widely used in machining applications. However some of the coating techniques, such as physical vapor deposition (PVD), involve only the physical deposition of coating layers which are prone to bulk delamination in some applications. Therefore functionally graded microstructure through diffusion is an efficient and widely used methods to improve the performance of coated WC-Co tools. In this work ISO P25, WC-Co based inserts were subjected to a thermochemical diffusion treatment by boronizing in a molten salt bath. The process was performed at 900, 1000, and 1100 °C for 1, 2 and 4 h. SEM, X-ray, EDS and microhardness analysis were performed on the samples. It was found that boron containing hard phases of W 2 B 5 , CoB, W 2 CoB 2 and WCoB were formed within the boronized region, occupying the grain boundary areas. An average microhardness value of 3600 HK 0.01 was measured in the near surface region which is substantially higher than the value of 1418 HK 0.01 representing the inner sections of the material.

  Info
Periodical
Solid State Phenomena (Volume 144)
Edited by
Inga Skiedraite and Jolanta Baskutiene
Pages
261-266
DOI
10.4028/www.scientific.net/SSP.144.261
Citation
S. Köksal, "The Characterization of WC-Co Based Materials Boronized within Molten Salt Bath", Solid State Phenomena, Vol. 144, pp. 261-266, 2009
Online since
September 2008
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ugur Sen, Saduman Sen, Fevzi Yilmaz
541
Authors: Saduman Sen, Ugur Sen, C. Bindal
565
Authors: U. Yapar, G. Basman, C.F. Arısoy, S.A. Yeşilçubuk, M.K. Sesen
629
Authors: U. Yapar, C.F. Arısoy, G. Basman, S.A. Yeşilçubuk, M.K. Sesen
633
Authors: Alaeddine Kaouka, Omar Allaoui, Mourad Keddam
Chapter 1: Materials Science and Materials Processing
Abstract:Properties of borided SAE 1035 steel have been investigated during boriding treatment, which was carried out in slurry salt bath at...
116