Materials and Corrosion
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Recently Published Articles
- Effects of flexible anodes on the potential distribution of the exterior of adjacent tank bottoms
K. X. Liao, Y. Liu, L. W. Dong and H. X. Zhang
Version of Record online: 26 APR 2017 | DOI: 10.1002/maco.201609184
A mathematical model for the potential distribution of adjacent tank bottoms under cathodic protection was established as a function of factors that affected the potential distribution. Laboratory experiments were conducted to determine the boundary conditions at the cathode to be used in the mathematical model. A finite element model was solved by means of the commercial software COMSOL.
- The influence of particle size on the long-term electrochemical corrosion behavior of pipeline steel in a corrosive soil environment
B. He, X. H. Bai, L. F. Hou, D. C. Zhang and P. J. Han
Version of Record online: 26 APR 2017 | DOI: 10.1002/maco.201609168
The effect of particle size on the electrochemical corrosion behavior of X70 pipeline steel in a 1.5 wt% NaCl sandy soil corrosion system was investigated by electrochemical techniques in combination with SEM-EDS, and X-ray diffraction characterization. The laboratory experiments indicated that the corrosion of X70 pipe steel is affected by particle-sizes.
- Corrosion properties of bioresorbable FeMn-Ag alloys prepared by selective laser melting
M. Wiesener, K. Peters, A. Taube, A. Keller, K.-P. Hoyer, T. Niendorf and G. Grundmeier
Version of Record online: 25 APR 2017 | DOI: 10.1002/maco.201709478
FeMn-Ag alloys as potential bioresorbable implant materials were prepared by selective laser melting of mixed powders of FeMn and Ag. The microstructure dependent corrosion and biomineralization processes in simulated body fluid were studied in-situ by means of electrochemical impedance spectroscopy. The results clearly show that the Ag-phase acts as a local cathode within the FeMn matrix.
- Corrosion behavior of austenitic steel AISI 316L in liquid tin in the temperature range between 280 and 700 °C
A. Heinzel, A. Weisenburger and G. Müller
Version of Record online: 25 APR 2017 | DOI: 10.1002/maco.201609211
Steel was attacked by liquid tin between 280 and 700 °C even after short time. A compact Fe-Sn layer forms at the surface, which stays constant in thickness, because parts of it spalls off and are dispersed in the tin environment. This results in a constant corrosion rate with time.
- A comprehensive evaluation between the efficiency of different treatments in modifying the properties and behavior of magnesium alloys as degradable biomaterials
B. Homayun and A. Afshar
Version of Record online: 25 APR 2017 | DOI: 10.1002/maco.201709453
Intergranullar precipitations and grain refinement are the main reasons why the addition of alloying elements affects magnesium alloys’ behavior, especially in physiological conditions. The main focus of this study is to evaluate between two competing effects in improving the magnesium alloys’ properties: “structural refinement versus eliminating galvanic microcells through solution heat-treatment.”