Microstructure and Mechanical Properties of Aluminum Clad Steel Plates by Cold Rolling and Annealing Heat Treatment
Aluminum clad steel plate has been successfully fabricated by cold rolling and annealing heat treatment. The thicknesses of total clad plate and aluminum cladding layer were about 1.5 mm and 50–70 μm, respectively. The grain morphology, mechanical properties revealed a slight anisotropy. Herein, the grains were severe elongated along the cold rolling direction. The clad plates exhibited a superior tensile elongation and slight interfacial delamination, and highest value of multiple bending fracture times was located at the clad plate along the angle of 45°. Moreover, the perfect interfacial brazing bonding presented at the base clad plate and fins, which can be used in the power station.
KeywordsAluminum clad steel plate Cold rolling and annealing Elongated grain Mechanical anisotropy Interfacial delamination
This work is financially supported by the National Natural Science Foundation of China (NSFC) under Grant No. 51601055, 51304059, the Hebei Science and Technology program under Grant No. 130000048, the National Natural Science Foundation of Hebei Province under Grant Nos. E201620218 and QN2016029.
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