Aiming at technical problems of multi-layer anticorrosive coating thickness detection for high-speed railway con-crete beam components.the detection and analysis ability of magnetic method,microscope method,and scanning electron microscope method to metal parts multi-alloy co-infiltration+zinc-chromium coating+sealing layer treatment three level anticorrosion coating thickness is discussed.Results show that magnetic method for detecting multi-alloy co-infiltrated layer of metal parts has advantages of simple and quick operation,but it has greater limitation.It is recommended to use other detection methods when detection accuracy is considered;microscopy method has higher accuracy but disadvantages that low detection efficiency and difficult to prepare samples when detecting thickness of multi-alloy infiltration layer.It is not suitable as a method for detecting thickness of multi-alloy co-infiltration layer;scanning electron microscopy detecting thick-ness of multi-alloy infiltration layer has high accuracy and good repeatability that can identify different types of anticorrosion coatings by scanning element surface of energy spectrometer,which is a suitable method for type inspection and arbitration inspection of anticorrosive coatings on metal parts.
high speed railwayanticorrosive coatingconcrete beammulti-alloy co-infiltrationmagnetic method
NETL
NSTL
万方数据
维普
