CORRELATION OF PROCESS PARAMETERS TO SURFACE INTEGRITY RESPONSIBLE FOR WEAR RESISTANCE OF HVOF SPRAYED WC-NI COATINGS

被引:0
|
作者
Zhu, X. P. [1 ]
Du, P. C. [1 ]
Meng, Y. [1 ]
Lei, M. K. [1 ]
Guo, D. M. [2 ]
机构
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Surface Engn Lab, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Minist Educ, Key Lab Precis & Nontradit Machining, Dalian 116024, Peoples R China
基金
美国国家科学基金会;
关键词
Thermal Spray; Wear Resistance; Surface Integrity; WC-Ni Coating; High Performance Manufacturing; THERMAL SPRAY; PHASE;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Surface integrity of high performance components has a profound influence on the final performance. Therefore, surface integrity is a key point for realizing high performance manufacturing by which manufacture processes and parameters can be pre-selected according to a required functional performance of components, i.e., solving inverse problem of manufacturing, as long as correlations could be established respectively for between processes and surface integrity, and between surface integrity and performance. However, in practice it is still difficult in correlating processes to performance through surface integrity, due to the material and geometry constraints hindering achievability of a desired surface integrity during conventional manufacturing as well as the complex influence of multiple surface integrity parameters on a final performance. In this study, thermally sprayed WC-10Ni coatings onto stainless steel using high velocity oxy-fuel (HVOF) spraying process are investigated to identify the surface integrity predominantly determining the water lubricated wear performance of coated steel, and then to correlate it to process parameters. The controllable surface integrity facilitates identifying responsible surface integrity parameters for a required high performance, and subsequently deriving necessary process parameters for achieving the desired responsible surface integrity. Specifically, HVOF process parameters are adjusted by changing the oxygen-to-fuel (O/F) ratio to control thermal and mechanical processing loads, i.e. temperature of heated in-flight spraying powders and impact velocity of the molten splats onto stainless steel to form the coatings. Surface features including porosity and phase structure, and surface characteristics including hardness, elastic modulus, and fracture toughness were studied with respect to the wear performance. The porosity and WC phase composition of coatings are identified responsible for the wear performance, as two essential surface integrity parameters that in turn greatly affect the surface characteristics including coating hardness, elastic modulus and fracture toughness. Consequently, the process parameter O/F is feasibly correlated to wear resistance through the responsible surface integrity parameters, as elucidating the coating formation mechanism of influence of particle velocity and temperature on the coating porosity and WC decomposition.
引用
收藏
页数:8
相关论文
共 50 条
  • [1] Effect of heat treatment on wear performance of nanostructured WC-Ni/Cr HVOF sprayed coatings
    Ben Mahmud T.
    Farrokhzad M.A.
    Khan T.I.
    Tribology Online, 2017, 12 (01) : 18 - 28
  • [2] Wear behaviour of plasma sprayed WC-Ni coatings
    Tekmen, Ç
    Çetinel, H
    Türk, A
    Çelik, E
    EURO CERAMICS VIII, PTS 1-3, 2004, 264-268 : 589 - 592
  • [3] A Comparison of Wear Due to Abrasion of WC-Ni Coatings on Aluminium Alloy Sprayed by HVOF and Detonation Gun
    Lakshmi, S. Gokul
    Reddy, G. M.
    Roy, Manish
    TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 2018, 71 (06) : 1389 - 1399
  • [4] Microstructure formation of HVOF sprayed WC-Ni coatings deposited on low alloy steel
    Guilemany, JM
    Nutting, J
    Miguel, JR
    Dong, Z
    MATERIALS AND MANUFACTURING PROCESSES, 1997, 12 (05) : 901 - 909
  • [5] Microstructure and properties of HVOF-sprayed chromium alloyed WC-Co and WC-Ni coatings
    Berger, L. -M.
    Saaro, S.
    Naumann, T.
    Wiener, M.
    Weihnacht, V.
    Thiele, S.
    Suchanek, J.
    SURFACE & COATINGS TECHNOLOGY, 2008, 202 (18): : 4417 - 4421
  • [6] The effect of impingement angle on erosion wear characteristics of HVOF sprayed WC-Ni and WC-Cr3C2-Ni cermet composite coatings
    Chen, Yirui
    Wu, Yuping
    Hong, Sheng
    Long, Weiyang
    Ji, Xiulin
    MATERIALS RESEARCH EXPRESS, 2020, 7 (02)
  • [7] The Mechanical Properties and Wear Resistance of HVOF Sprayed WC-Co Coatings
    Ozbek, Y. Y.
    Canikoglu, N.
    Ipek, M.
    ACTA PHYSICA POLONICA A, 2016, 129 (04) : 600 - 603
  • [8] The Wear Resistance of HVOF Sprayed Composite Coatings
    Dariusz Ozimina
    Monika Madej
    Tadeusz Kałdoński
    Tribology Letters, 2011, 41 : 103 - 111
  • [9] The Wear Resistance of HVOF Sprayed Composite Coatings
    Ozimina, Dariusz
    Madej, Monika
    Kaldonski, Tadeusz
    TRIBOLOGY LETTERS, 2011, 41 (01) : 103 - 111
  • [10] Wear resistance of HVOF sprayed carbide coatings
    Rodríguez, M
    Klisans, J
    Bavaresco, L
    Scagni, A
    Arenas, F
    THERMAL SPRAY 2001: NEW SURFACES FOR A NEW MILLENNIUM, 2001, : 1061 - 1068