Abstract:
Zincizing layer was prepared on Q235 steel surface by mechanical energy aided diffusing method, and surface and cross-section morphology, phase,micro-hardness, high temperature oxidation resistance and corrosion resistance of the zincizing layer were studied and compared with the zincizing layer prepared by traditional powders embedding method. The results show that the phases of the zincizing layer prepared by mechanical energy aided diffusing method were mainly FeZn15, FeZn11, FeZn9 and FeZn7, and its micro-hardness was around 270-350 HV, which had no observably difference with the hardness of the zincizing layer prepared by traditional powders embedding method. Comparing with Q235 steel and the zincizing layer prepared by traditional powder embedding method, the zincizing layer prepared by mechanical energy aided diffusing method had higher oxidation resistance and lower corrosion resistance properties, but it could prevent the sample from corroding as the positive pole of the sample.