Journal
ISIJ INTERNATIONAL
Volume 50, Issue 4, Pages 569-573Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
DOI: 10.2355/isijinternational.50.569
Keywords
H13 tool steel; erosion; corrosion; oxidation; A380 alloy
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Funding
- ASSAB STEELS TAIWAN CO., LTD.
- National Science Council of Taiwan [NSC96-2622-E-027-003-CC3]
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In this work, H13 tool steel was prepared with different oxidation treatments to investigate the effects of oxidation temperature and soaking time. In order to improve erosion and corrosion resistance, this study tested with oxidation temperatures of 560 degrees C, 580 degrees C, and 600 degrees C, and oxidation soaking times of 1 h, 2 h, and 3 h, respectively. Experimental results showed that the oxidation treatment at 600 degrees C and for 3 h is the optimum process. The average thickness of the oxide layer was 9.2 mu m. It showed that the oxide layer (Fe3O4) can protect and improve the aluminum erosion of H13 steel. The specimens that underwent the oxidative procedure were proven to effectively reduce the ratio of Al-Fe-Si compounds during erosion tests of A380 alloy solution. In addition, the results showed that the oxide layer can enhance polarization resistance, and quickly generate a passivation layer to increase the ability of corrosion resistance.
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