| High temperature oxidation behavior of high speed steel for hot rolls material |
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| 引用本文： | LiZhou FangLiu ChangshengLiu DaleSun LisongYao. High temperature oxidation behavior of high speed steel for hot rolls material[J]. 北京科技大学学报(英文版), 2005, 12(2): 166-171 |
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| 作者姓名： | LiZhou FangLiu ChangshengLiu DaleSun LisongYao |
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| 作者单位： | [1]SchoolofMaterialandMetallurgy,NortheasternUniversity,Shenyang110004,China [2]TechnologyCenter,BaoshanIron＆SteelCo.Ltd.,Shanghai201900,China |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划) |
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| 摘 要： | The oxidation characteristics of high speed steel (HSS) were studied at 500 to 800℃. The non-isothermal oxidation and isothermal oxidation (500, 575, 650, 725, 800℃) of HSS were investigated by thermo-gravimetric analysis (TGA). The microstructure, morphology and oxide scale thickness of the isothermal oxidation samples were analyzed by optical microscope (OM), electron probe micro analyzer (EPMA), X-ray diffraction spectrum (XRD) and scanning electron microscope (SEM). The results indicate that the oxidation rate of HSS is very slow at 500 to 650℃, increasing gradually at 650 to 750℃, and drastically at 750 to 800℃, because the phase transformation happens at about 750℃.
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| 关 键 词： | 高温氧化行为 高速钢 热扎工艺 氧化动力学 氧化特征 |
High temperature oxidation behavior of high speed steel for hot rolls material |
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| Li Zhou,Fang Liu,Changsheng Liu,Dale Sun,Lisong Yao. High temperature oxidation behavior of high speed steel for hot rolls material[J]. Journal of University of Science and Technology Beijing, 2005, 12(2): 166-171 |
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| Authors: | Li Zhou Fang Liu Changsheng Liu Dale Sun Lisong Yao |
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| Abstract: | The oxidation characteristics of high speed steel (HSS) were studied at 500 to 800℃. The non-isothermal oxidation and isothermal oxidation (500, 575, 650, 725, 800℃) of HSS were investigated by thermo-gravimetric analysis (TGA). The microstructure, morphology and oxide scale thickness of the isothermal oxidation samples were analyzed by optical microscope (OM), electron probe micro analyzer (EPMA), X-ray diffraction spectrum (XRD) and scanning electron microscope (SEM). The results indicate that the oxidation rate of HSS is very slow at 500 to 650℃, increasing gradually at 650 to 750℃, and drastically at 750 to 800℃, because the phase transformation happens at about 750℃. |
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| Keywords: | high speed steel high temperature oxidation isothermal oxidation non-isothermal oxidation oxide kinetics |
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