SPAH鋼的高溫氧化行為
發(fā)布時間:2018-12-17 19:29
【摘要】:SPAH鋼在熱軋過程中氧化不僅會影響到產(chǎn)品的表面質(zhì)量還會影響到材料的收得率.在熱軋溫度范圍733~1 333K,對該鋼進行了熱軋試驗,利用掃描電子顯微鏡、能譜分析和X射線衍射等方式研究了其高溫氧化行為.研究表明,當溫度低于833K時,鋼的高溫氧化非常輕微.在鋼的溫度低于1 133K時,其表面氧化膜均比較致密.如果溫度超過1 133K,所形成的氧化膜松而脆,而且此時隨著溫度的升高,表面氧化速率顯著增加.進一步數(shù)值分析表明,提高軋制過程中的冷卻速率或提高軋制速度可以減少表面氧化.
[Abstract]:The oxidation of SPAH steel during hot rolling will not only affect the surface quality of the product but also the yield of the material. The hot rolling test was carried out in the hot rolling temperature range of 733 ~ 133K. The oxidation behavior of the steel at high temperature was studied by means of scanning electron microscope, energy spectrum analysis and X-ray diffraction. The results show that the oxidation at high temperature is very slight when the temperature is below 833K. When the temperature of the steel is lower than 113K, the oxide film on the surface of the steel is compact. If the temperature exceeds 1 133K, the oxide film formed is loose and brittle, and the surface oxidation rate increases significantly with the increase of temperature. Further numerical analysis shows that surface oxidation can be reduced by increasing cooling rate or rolling speed.
【作者單位】: 國網(wǎng)冀北電力有限公司經(jīng)濟技術(shù)研究院;北方工業(yè)大學機械與材料工程學院;
【基金】:科技部國際合作項目(2013DFG12750) 北京市長城學者資助項目(CIT&TCD20140301) 北京市自然科學基金項目(3142007)
【分類號】:TG142.1
[Abstract]:The oxidation of SPAH steel during hot rolling will not only affect the surface quality of the product but also the yield of the material. The hot rolling test was carried out in the hot rolling temperature range of 733 ~ 133K. The oxidation behavior of the steel at high temperature was studied by means of scanning electron microscope, energy spectrum analysis and X-ray diffraction. The results show that the oxidation at high temperature is very slight when the temperature is below 833K. When the temperature of the steel is lower than 113K, the oxide film on the surface of the steel is compact. If the temperature exceeds 1 133K, the oxide film formed is loose and brittle, and the surface oxidation rate increases significantly with the increase of temperature. Further numerical analysis shows that surface oxidation can be reduced by increasing cooling rate or rolling speed.
【作者單位】: 國網(wǎng)冀北電力有限公司經(jīng)濟技術(shù)研究院;北方工業(yè)大學機械與材料工程學院;
【基金】:科技部國際合作項目(2013DFG12750) 北京市長城學者資助項目(CIT&TCD20140301) 北京市自然科學基金項目(3142007)
【分類號】:TG142.1
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