| 氮对0.3C—26Cr—8Ni耐热钢组织与性能的影响 |
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| 引用本文： | 惠希东,王守仁.氮对0.3C—26Cr—8Ni耐热钢组织与性能的影响[J].特殊钢,1997,18(3):14-17. |
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| 作者姓名： | 惠希东 王守仁 |
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| 作者单位： | 山东工业大学材料学院!济南，250061，山东工业大学材料学院!济南，250061，山东工业大学材料学院!济南，250061，山东建材学院机械工程系 |
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| 摘 要： | 采用酸碱滴定法分析０．３Ｃ－２６Ｃｒ－８Ｎｉ铸态和１２５０℃高温拉伸后的固溶氮量和化俣氮量，探讨了氮的存在形式我的拉伸性能的关系。结果表明、铸态和高温拉伸后氮大部分以化合态形式存在，高温拉伸中，随氮化物的析出使氮固溶量降低。随着氮加入量的增加，在合金室温延伸率下降，但室温强度和高温强度、高温延伸率呈先上升后下降的规律。
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| 关 键 词： | 氮 耐热钢 组织 拉伸性能 影响 |
Effect of Nitrogen on Structure and Properties of Heat-Resistance Steel 0.3C-26Cr-8Ni |
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| Hui Xidong, Teng Xinying and Wang Zhifu.Effect of Nitrogen on Structure and Properties of Heat-Resistance Steel 0.3C-26Cr-8Ni[J].Special Steel,1997,18(3):14-17. |
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| Authors: | Hui Xidong Teng Xinying and Wang Zhifu |
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| Abstract: | The relation between the existence form of nitrogen and tensile properties of 0. 3C-26Cr-8Ni steel has been studied by analyzing the solid-solution and compound nitrogen in alloy casted and high-tempera-ture tensioned using acid and alkali titration. The results showed that in as-cast steel high-temperature ten-sioned the nitrogen mainly exists in form of nitride; and the solid-solution nitrogen content further decreases with increasing precipitation of nitride during high temperature tensioning, and with increasing the amount ad-dition of nitrogen the ambient elongation decreases, at the same time the ambient strength as well as the high temperature strength and elongation increase obviously as nitrogen content in steel is less than 0. 25%, and then decrease. |
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| Keywords: | Nitrogen 0 3C-26Cr-8Ni Steel Structure Tensile Property |
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