Effects of wire-electro discharge machining process on surface integrity of WC-10Co alloy

被引：7
作者：
Sireli, Erdem [1 ]
Orhon, Nilufer [1 ]
Sireli, Guldem Kartal [2 ]
机构：
[1] Bohler Sert Maden, GOSB Ihsan Dede Cad 1600 Sk 1602, Gebze, Kocaeli, Turkey
[2] Istanbul Tech Univ, Dept Met & Mat Engn Maslak, Istanbul, Turkey
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2017年 / 64卷
关键词：
w-EDM; Surface integrity; Hard metal; TIN morphology; WC-CO; MECHANICAL-PROPERTIES; WEAR RESPONSE; MICROSTRUCTURE; TIN; PARAMETERS; BEHAVIOR; FRACTURE; IMPROVEMENT; FRICTION;
D O I：
10.1016/j.ijrmhm.2016.12.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the effects of heat affected zone generated by wire electro discharge machining (w-EDM) process on the surface integrity of a K15 grade hard metal before and after TiN coating application via chemical vapour deposition (CVD) was investigated. It was observed that applying dry blasting (DB) on w-EDM'ed surfaces is a very efficient way to remove heat affected zone, namely recast layer. TiN layers deposited on w-EDM'ed surfaces showed a great diversity in their morphologies depending on the w-EDM process parameters and exhibited irregularities whereas the ones coated on dry blasted (DB'ed) surfaces constituted much finer mixture of nodular, star shaped and lenticular crystals. Adhesion of TiN layers on the DB'ed hard metal samples was better compared to the ones deposited directly on w-EDM'ed samples with a thick heat affected zone on their surfaces. Friction and wear properties of the TiN layer formed on DB'ed surface against alumina ball were also superior which were also in good agreement with its higher adhesion strength and distinctive morphology. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：190 / 199
页数：10
相关论文
共 34 条
  • [1] Effect of WC particle size on the microstructure, mechanical properties and fracture behavior of WC-(W, Ti, Ta) C-6 wt% Co cemented carbides
    Akhtar, Farld
    Humail, Islam S.
    Askari, S. J.
    Tian, Jianjun
    Shiju, Guo
    [J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2007, 25 (5-6) : 405 - 410
  • [2] Reciprocating friction and wear behavior of WC-Co based cemented
    Bonny, K.
    De Baets, P.
    Van der Biest, O.
    Vleugels, J.
    Lauwers, B.
    [J]. PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3, 2007, 561-565 : 2025 - +
  • [3] Friction and wear characteristics of WC-Co cemented carbides in dry reciprocating sliding contact
    Bonny, K.
    De Baets, P.
    Perez, Y.
    Vleugels, J.
    Lauwers, B.
    [J]. WEAR, 2010, 268 (11-12) : 1504 - 1517
  • [4] Impact of Cr3C2/VC addition on the dry sliding friction and wear response of WC-Co cemented carbides
    Bonny, K.
    De Baets, P.
    Vleugels, J.
    Huang, S.
    Van der Biest, O.
    Lauwers, B.
    [J]. WEAR, 2009, 267 (9-10) : 1642 - 1652
  • [5] Surface finishing: Impact on tribological characteristics of WC-Co hardmetals
    Bonny, K.
    De Baets, P.
    Quintelier, J.
    Vleugels, J.
    Jiang, D.
    Van der Biest, O.
    Lauwers, B.
    Liu, W.
    [J]. TRIBOLOGY INTERNATIONAL, 2010, 43 (1-2) : 40 - 54
  • [6] Influence of electrical discharge machining on the reciprocating sliding wear response of WC-Co cemented carbides
    Bonny, K.
    De Baets, P.
    Ost, W.
    Vleugels, J.
    Huang, S.
    Lauwers, B.
    Liu, W.
    [J]. WEAR, 2009, 266 (1-2) : 84 - 95
  • [7] Adhesion and abrasive wear resistance of TiN deposited on electrical discharge machined WC-Co cemented carbides
    Casas, B.
    Wiklund, U.
    Hogmark, S.
    Llanes, L.
    [J]. WEAR, 2008, 265 (3-4) : 490 - 496
  • [8] Fracture and fatigue behavior of electrical-discharge machined cemented carbides
    Casas, B
    Torres, Y
    Llanes, L
    [J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2006, 24 (1-2) : 162 - 167
  • [9] Mechanical strength improvement of electrical discharge machined cemented carbides through PVD (TiN, TiAlN) coatings
    Casas, B
    Lousa, A
    Calderón, J
    Anglada, M
    Esteve, J
    Llanes, L
    [J]. THIN SOLID FILMS, 2004, 447 : 258 - 263
  • [10] Correlation between process parameters, microstructure and hardness of titanium nitride films by chemical vapor deposition
    Cheng, HE
    Wen, YW
    [J]. SURFACE & COATINGS TECHNOLOGY, 2004, 179 (01) : 103 - 109
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