Effect of Segregation and Surface Condition on Corrosion of Rheo-HPDC Al–Si Alloys
作者： Maryam Eslami , Mostafa Payandeh , Flavio Deflorian , Anders Jarfors , Caterina Zanella
DOI: 10.3390/MET8040209
关键词:
摘要: Corrosion properties of two Al–Si alloys processed by Rheo-high pressure die cast (HPDC) method were examined using polarization and electrochemical impedance spectroscopy (EIS) techniques on as-cast ground surfaces. The effects the silicon content, transverse longitudinal macrosegregation corrosion resistance determined. Microstructural studies revealed that samples from different positions contain fractions solid liquid parts initial slurry. Electrochemical behavior as-cast, surface, bulk material was shown to be due presence a segregated skin layer surface quality.
core.ac.uk
sci-hub.se 参考文章(54)
Chul Kyu Jin, Chang Hyun Jang, Chung Gil Kang, Die design method for thin plates by indirect rheo-casting process and effect of die cavity friction and punch speed on microstructures and mechanical properties Journal of Materials Processing Technology. ,vol. 224, pp. 156- 168 ,(2015) , 10.1016/J.JMATPROTEC.2015.05.002
Mostafa Payandeh, Anders E. W. Jarfors, Magnus Wessén, Solidification Sequence and Evolution of Microstructure During Rheocasting of Four Al-Si-Mg-Fe Alloys with Low Si Content Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 47, pp. 1215- 1228 ,(2016) , 10.1007/S11661-015-3290-9
H Zhan, JMC Mol, F Hannour, L Zhuang, Herman Terryn, JHW De Wit, None, The influence of copper content on intergranular corrosion of model AlMgSi(Cu) alloys Materials and Corrosion-werkstoffe Und Korrosion. ,vol. 59, pp. 670- 675 ,(2008) , 10.1002/MACO.200804110
R. Arrabal, B. Mingo, A. Pardo, M. Mohedano, E. Matykina, I. Rodríguez, Pitting corrosion of rheocast A356 aluminium alloy in 3.5wt.% NaCl solution Corrosion Science. ,vol. 73, pp. 342- 355 ,(2013) , 10.1016/J.CORSCI.2013.04.023
Z.W. Chen, Skin solidification during high pressure die casting of Al–11Si–2Cu–1Fe alloy Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 348, pp. 145- 153 ,(2003) , 10.1016/S0921-5093(02)00747-5
Mohammed A. Amin, Uniform and pitting corrosion events induced by SCN− anions on Al alloys surfaces and the effect of UV light Electrochimica Acta. ,vol. 56, pp. 2518- 2531 ,(2011) , 10.1016/J.ELECTACTA.2010.12.045
J.A. Moreto, C.E.B. Marino, W.W. Bose Filho, L.A. Rocha, J.C.S. Fernandes, SVET, SKP and EIS study of the corrosion behaviour of high strength Al and Al–Li alloys used in aircraft fabrication Corrosion Science. ,vol. 84, pp. 30- 41 ,(2014) , 10.1016/J.CORSCI.2014.03.001
Valérie Guillaumin, Georges Mankowski, Localized corrosion of 6056 T6 aluminium alloy in chloride media Corrosion Science. ,vol. 42, pp. 105- 125 ,(1998) , 10.1016/S0010-938X(99)00053-0
S. Tahamtan, A. Fadavi Boostani, Quantitative analysis of pitting corrosion behavior of thixoformed A356 alloy in chloride medium using electrochemical techniques Materials & Design. ,vol. 30, pp. 2483- 2489 ,(2009) , 10.1016/J.MATDES.2008.10.003
Helen V. Atkinson, Alloys for Semi-Solid Processing Solid State Phenomena. pp. 16- 27 ,(2012) , 10.4028/WWW.SCIENTIFIC.NET/SSP.192-193.16