Corrosion behaviour of thermal sprayed nitinol coatings

被引：60
作者：
Guilemany, J. M. [1 ]
Cinca, N. [1 ]
Dosta, S. [1 ]
Benedetti, A. V. [2 ]
机构：
[1] Univ Barcelona, Dept Mat Sci & Engn, Thermal Spray Ctr, Barcelona, Spain
[2] UNESP Univ Estadual Paulista, Inst Quim, BR-14801970 Araraquara, SP, Brazil
来源：
CORROSION SCIENCE | 2009年 / 51卷 / 01期
关键词：
Intermetallics; Potenciostatic; SEM; X-ray diffraction; Pitting corrosion; CAVITATION EROSION RESISTANCE; THIN-FILMS; SHAPE; SURFACE; STEEL; HVOF;
D O I：
10.1016/j.corsci.2008.10.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
NiTi alloy is here investigated as an alternative coating to stainless steel since it is considered to possess good corrosion properties. Three different thermal spray techniques (high velocity oxy-fuel -HVOF-, vacuum plasma spray -VPS- and atmospheric plasma spray quenching -APS+Q-) have been used for building the coatings, and electrochemical tests have been carried out for corrosion evaluation. Open-circuit tests have revealed that the VPS-coating shows fairly good corrosion resistance, both in the as-sprayed and polished forms. The HVOF coatings however, showed a strong dependence on the surface conditions and APS+Q is dominated by electrolyte penetration through coating cracks, thus exhibiting a higher i(corr). (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：171 / 180
页数：10
相关论文
共 45 条
  • [1] Vacuum plasma spraying of NiTi protection layers
    Bram, M
    Ahmad-Khanlou, A
    Buchkremer, HP
    Stöver, D
    [J]. MATERIALS LETTERS, 2002, 57 (03) : 647 - 651
  • [2] CANO IG, 2006, NITI METASTABLE POWD
  • [3] Production and characterization of metastable Al2O3-TiO2 ceramic materials
    Cano, Irene G.
    Dosta, Sergi
    Miguel, Joan Ramon
    Guilemany, Jose Maria
    [J]. JOURNAL OF MATERIALS SCIENCE, 2007, 42 (22) : 9331 - 9335
  • [4] Cavitation erosion resistance of heat-treated NiTi
    Cheng, FT
    Shi, P
    Man, HC
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 339 (1-2): : 312 - 317
  • [5] Correlation of cavitation erosion resistance with indentation-derived properties for a NiTi alloy
    Cheng, FT
    Shi, P
    Man, HC
    [J]. SCRIPTA MATERIALIA, 2001, 45 (09) : 1083 - 1089
  • [6] Corrosion behavior of AISI 316L stainless steel surface-modified with NiTi
    Chiu, KY
    Cheng, FT
    Man, HC
    [J]. SURFACE & COATINGS TECHNOLOGY, 2006, 200 (20-21) : 6054 - 6061
  • [7] Porosity evaluation of protective coatings onto steel, through electrochemical techniques
    Creus, J
    Mazille, H
    Idrissi, H
    [J]. SURFACE & COATINGS TECHNOLOGY, 2000, 130 (2-3) : 224 - 232
  • [8] Equivalent circuit for modelling the steel-concrete interface. II. Complications in applying the Stern-Geary equation to corrosion rate determinations
    Feliu, V
    Gonzalez, JA
    Andrade, C
    Feliu, S
    [J]. CORROSION SCIENCE, 1998, 40 (06) : 995 - 1006
  • [9] FRISKE WH, SHAPE MEMORY ALLOY S
  • [10] Characterization of TiNi shape-memory alloy thin films for MEMS applications
    Fu, YQ
    Huang, WM
    Du, HJ
    Huang, X
    Tan, JP
    Gao, XY
    [J]. SURFACE & COATINGS TECHNOLOGY, 2001, 145 (1-3) : 107 - 112
12345