| 高氮奥氏体钢的韧脆转变与层错能的关系 |
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| 引用本文： | 马玉喜. 高氮奥氏体钢的韧脆转变与层错能的关系[J]. 钢铁研究, 2011, 39(2): 11-14 |
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| 作者姓名： | 马玉喜 |
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| 作者单位： | 武汉钢铁(集团)公司研究院,武汉,430080 |
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| 基金项目： | 国家重点基础研究规划(973)项目课题 |
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| 摘 要： | 在-60℃至室温范围内,采用夏比冲击试验测定材料的韧-脆转变温度,并通过对冲击断口的X-射线测试层错能等方法,对几种不同含氮量奥氏体不锈钢在低温下发生韧-脆转变的现象进行了研究。结果表明：在超高氮奥氏体钢中,随氮质量分数的增加该钢种发生韧-脆转变的温度上升,层错能减少,韧性越来越差。
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| 关 键 词： | 夏比冲击试验 高氮奥氏体钢 韧-脆转变 层错能 |
Study on relationship between ductile to brittle transition and stacking fault energy of high nitrogen containing austenitic stainless steel |
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| MA Yu-xi. Study on relationship between ductile to brittle transition and stacking fault energy of high nitrogen containing austenitic stainless steel[J]. Research on Iron and Steel, 2011, 39(2): 11-14 |
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| Authors: | MA Yu-xi |
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| Affiliation: | MA Yu-xi (Research and Development Center of WISCO,Wuhan 430080,China) |
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| Abstract: | The DBTT of super-high nitrogen containing austenitic stainless steels was tested at temperatures between room-temperature and -60 ℃ by Charpy-type test,and its ductility and brittleness transition were investigated under low temperature by XRD method.The results show that the ductile to brittle transition temperature(DBTT) of high nitrogen containing austenitic stainless steels depends on the nitrogen content in the steel,and the DBTT is shifted from low temperature to high temperature.In addition,with the increase of nitrogen content,the stacking fault energy is decreased and the ductility is getting worse. |
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| Keywords: | Charpy-type test high nitrogen austenitic stainless steel ductile to brittle transition the stacking fault energy |
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