Corrosion behaviours of 30CrMnSiA high-strength Steel in
Abstract
objective To provide useful references for The design of corrosion protection to crmnsia high-strength steel, expansion a Its Applications then Development of newtypes of of high-strength Steel . Methods Atmospheric corrosion behav iours To ,crmnsia high-strength Steel exposed in industrial and Marine Atmosphere environmentsfor months were investi Gated in Virtue of the corrosion Mass loss, X-ray diffractmeter (XRD ) and Scanning electron microscope (SEM). Results The relationship betweenMass loss and exposure Time obeyed down " following Power function: lgaw=2.245+0.387 LG t and lg Aw =2.822+0.637LG t. lepidocrocite Then goethite were found as the major Constituents of, The rust layer formed in two Types of, at mosphere environmentsand, akaganeite was also detected In the Marine Atmosphere Environment. The rust layer exhibited the Tendency on flaking away from " substrate in Marine atmosphere Environment With the increase of exposing. Conclusion Crmnsia high-strength Steel exhibits High corrosion susceptibility Then low corrosion Susceptibility in Marine atmosphere en vironment and industrial Atmosphere Environment, respectively .
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DOI: http://dx.doi.org/10.18686/jaoe.v3i1.1145
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