Corrosion Resistance of Heat-Treated Ni-W Alloy Coatings

被引：20
作者：
Popczyk, Magdalena [1 ]
Kubisztal, Julian [1 ]
Swinarew, Andrzej Szymon [1 ,2 ]
Waskiewicz, Zbigniew [2 ,3 ]
Stanula, Arkadiusz [2 ]
Knechtle, Beat [4 ]
机构：
[1] Univ Silesia Katowice, Fac Sci & Technol, PL-41500 Chorzow, Poland
[2] Jerzy Kukuczka Acad Phys Educ, Inst Sport Sci, PL-40065 Katowice, Poland
[3] Sechenov Univ, Dept Sports Med & Med Rehabil, Moscow 119991, Russia
[4] Univ Zurich, Inst Primary Care, CH-8091 Zurich, Switzerland
来源：
MATERIALS | 2020年 / 13卷 / 05期
关键词：
Ni-W alloy coating; heat treatment; corrosion resistance; HYDROGEN EVOLUTION REACTION; ELECTRODEPOSITED NANOCRYSTALLINE; ELECTROCHEMICAL CHARACTERIZATION; MECHANICAL-PROPERTIES; COMPOSITE COATINGS; WEAR BEHAVIOR; IN-SITU; MOLYBDENUM; DEPOSITION; TUNGSTEN;
D O I：
10.3390/ma13051172
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The paper presents research on evaluation of corrosion resistance of Ni-W alloy coatings subjected to heat treatment. The corrosion resistance was tested in 5% NaCl solution by the use of potentiodynamic polarization technique and electrochemical impedance spectroscopy. Characteristics of the Ni-W coatings after heat treatment were carried out using scanning electron microscopy, scanning Kelvin probe technique and X-ray diffraction. Suggested reasons for the improvement of properties of the heat treated Ni-W coating, obtained at the lowest current density value (125 mA.cm(-2)), are the highest tungsten content (c.a. 25 at.%) as well as the smallest and the most homogeneous electrochemically active surface area.
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页数：11
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