| 铜元素在钢表面氧化过程中富集规律的研究 |
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| 引用本文： | 李长荣,杨小平,文辉.铜元素在钢表面氧化过程中富集规律的研究[J].热加工工艺,2010,39(4). |
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| 作者姓名： | 李长荣 杨小平 文辉 |
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| 作者单位： | 1. 贵州大学材料与冶金工程学院,贵州,贵阳,550003;贵州省材料结构与强度重点实验室,贵州,贵阳,550003
2. 贵州大学材料与冶金工程学院,贵州,贵阳,550003 |
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| 基金项目： | 贵州大学人才科研基金 |
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| 摘 要： | 对不同铜含量的钢在表面氧化过程中铜的富集规律进行了研究。研究结果表明:钢的热加工性能与钢中铜含量有着密切联系。残余铜含量越高,晶界与基体界面氧化腐蚀越严重,热脆性倾向越大;热加工时间越长,液态富铜相渗透晶界越深,分布面越宽,晶界富集量越多;热加工温度越高,晶内、晶界氧化越剧烈。合理地改善热加工时间和温度,可以减轻钢中残余铜元素所导致的热脆性。
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| 关 键 词： | 残余铜元素 表面氧化 富铜相 热脆性 |
Study on Enrichment Rule of Copper in Steel Surface During Oxidation |
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| LI Changrong,YANG Xiaoping,WEN Hui.Study on Enrichment Rule of Copper in Steel Surface During Oxidation[J].Hot Working Technology,2010,39(4). |
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| Authors: | LI Changrong YANG Xiaoping WEN Hui |
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| Affiliation: | LI Changrong1,2,YANG Xiaoping1,WEN Hui1 (1.Institute of Material , Metallurgy,Guizhou University,Guiyang 550003,China,2.Guizhou Province Key Laboratory for Material Structure , Intensity,China) |
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| Abstract: | Enrichment rule of residual copper in different Cu-content steel surface during oxidation was studied.The research results indicate that the hot-working character of steel has intimately relationship with the copper content in steel.The more the content of residual copper in steel,the more severely the oxidation corrosion occurs on grain boundary and matrix,the greater the hot brittleness tendency;the longer the hot-working time,the deeper the liquid phase of copper-rich infiltrates into grain boundary,the ... |
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| Keywords: | residual element copper surface oxidation copper-rich phase hot brittleness |
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