Cutting performance and indentation behaviour of diamond films on co-cemented tungsten carbide

被引：43
作者：
Polini, R
D'Antonio, P
Lo Casto, S
Ruisi, VF
Traversa, E
机构：
[1] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
[2] Univ Palermo, Dipartimento Tecnol & Prod Meccan, I-90128 Palermo, Italy
来源：
SURFACE & COATINGS TECHNOLOGY | 2000年 / 123卷 / 01期
关键词：
cutting performance; diamond films; indentation behaviour;
D O I：
10.1016/S0257-8972(99)00471-5
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Diamond films were grown by Hot Filament Chemical Vapour Deposition (HFCVD) on differently pretreated ISO-grade K10 cemented carbide (WC-5.8 wt.%Co) cutting inserts. Etching with diluted HNO3 and surface roughening by Murakami's reagent were used as substrate pretreatments. The adhesion of the films was evaluated by indentation tests. In order to obtain a reliable estimation of the adhesion by the slope of the crack radius-indentation load curves, a careful SEM measurement of the crack lengths was performed. Bare and diamond-coated cutting inserts were used for turning tests of Al2O3-reinforced aluminum alloy. The adhesion levels obtained from the indentation curves correlated well the lifetime of diamond-coated cutting inserts used in turning tests performed on metal matrix composite material under severe cutting conditions, (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：78 / 83
页数：6
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