Paper Title:
Deposition of Diamond Films on Smooth Surfaces of Cemented Carbide Inserts with Cobalt Boride Interlayers
  Abstract

Improving adhesion and surface roughness of diamond films on WC–Co substrate is the key factor of the widespread application of diamond coated tools. A new pretreatment method has been performed for smooth Co-cemented carbide inserts in order to lower the surface roughness of diamond films under the premise of good adhesion between diamond films and substrates. The effect of the new pretreatment on the adhesion of the diamond films is investigated. Research results show that the boronization pretreatment can effectively suppress cobalt diffusion to the surface and avoid catalytic effect of Co at high temperature. This new pretreatment can avoid the surface roughening of inserts and ensure the deposition of smooth diamond films. Investigation shows that the optimum boronization compounding is a powder mixture of 70%B4C+15.5%KBF4+1.5% La2O3+13%Na2CO3. Adhesion between substrates and diamond films is evaluated by Rockwell A indentation tests and the cutting performance of the diamond-coated tools is investigated by the cutting tests. Diamond films on smooth cemented carbide inserts with cobalt boride interlayer have high adhesive strength and low surface roughness. Diamond-coated tools with boronization pretreatment have a 5-fold increase in tool life compared with untreated ones.

  Info
Periodical
Key Engineering Materials (Volumes 315-316)
Edited by
Zhejun Yuan, Xipeng Xu, Dunwen Zuo, Julong Yuan and Yingxue Yao
Pages
205-209
DOI
10.4028/www.scientific.net/KEM.315-316.205
Citation
Y. Wang, Y.P. Ma, F. H. Sun, Z. M. Zhang, M. Chen, "Deposition of Diamond Films on Smooth Surfaces of Cemented Carbide Inserts with Cobalt Boride Interlayers", Key Engineering Materials, Vols. 315-316, pp. 205-209, 2006
Online since
July 2006
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: Jea Won Lee, In Seon Lee, Tae Won Kang, Dong Won Kim, Sang Ho Kim
Abstract:Adhesion of flexible copper clad laminates (FCCL) on two different types of polyimide (PI), sputtering raw polyimide (SRPI) and casting raw...
1675
Authors: Wen Zhuang Lu, Dun Wen Zuo, Min Wang, Feng Xu
Abstract:Electroplated Cr, Ni and Cu were used as interlayer for chemical vapor deposition (CVD) diamond coating on WC–Co cemented carbide cutting...
92
Authors: Ri Sheng Du, Ji Hua Peng, Xian Wen Liang, Jun Tian
Abstract:In this paper, the TiN/TiAlN duplex coatings were deposited on SKH51 tool steel by means of multi-arc ion plating. By means of SEM, Vickers...
402
Authors: Ai Wen Zhang, Si Hai Jiao, Zheng Yi Jiang, Dong Bin Wei
Chapter 16: Steels
Abstract:The bubble structures, fishscaling resistance, adhesion and its mechanism of vitreous enamel to low carbon steels were evaluated by...
736
Authors: Tatsuya Sugihara, Toshiyuki Enomoto, Satoshi Yukinaga, Kenji Hirose, Urara Satake
Chapter 12: Other Related Technologies
Abstract:In cutting of aluminum alloys, one of the most serious problems is chip adhesion to cutting tool surface, often leading to tool failure,...
1092