| 2Cr13Ni2不锈钢零件的失效机制分析 |
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| 引用本文： | 刘子利,陈志华,王蕾,周桂斌. 2Cr13Ni2不锈钢零件的失效机制分析[J]. 热处理, 2011, 26(6): 74-78 |
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| 作者姓名： | 刘子利 陈志华 王蕾 周桂斌 |
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| 作者单位： | 1. 南京航空航天大学材料科学与技术学院,江苏南京,210016
2. 常熟市良益金属材料有限公司,江苏常熟,215517 |
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| 摘 要： | 采用金相检验、扫描电镜和能谱分析技术研究了2Cr13Ni2不锈钢螺母的开裂失效机制.结果表明,开裂螺母的组织粗大,晶界处的碳化物和硫化物引起了晶间腐蚀,裂纹萌生于粗晶间腐蚀部位,导致该螺母发生沿晶脆性断裂.
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| 关 键 词： | 2Cr13Ni2不锈钢 碳化物 硫化物 晶间腐蚀 |
Failure Mechanism of 2Cr13Ni2 Stainless Steel Part |
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| LIU Zi-li,CHEN Zhi-hua,WANG Lei,ZHOU Gui-bin. Failure Mechanism of 2Cr13Ni2 Stainless Steel Part[J]. Heat Treatment, 2011, 26(6): 74-78 |
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| Authors: | LIU Zi-li CHEN Zhi-hua WANG Lei ZHOU Gui-bin |
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| Affiliation: | 1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu China; 2. Changshu Liony Metals Co., Ltd., Changshu 215517, Jiangsu China) |
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| Abstract: | Cracking mechanism of 2Cr13Ni2 stainless steel nut was investigated by means of metallurgraphic examination, SEM and EDS. The results show that the cracked nut has a eoarse structure with earbides and sulfides at grain boundary eausing intergranular corrosion which results in initiation of erack, thus leading to brittle intergranular fracture of the nut. |
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| Keywords: | 2Cr13Ni2 stainless steel carbide sulfide intergranular eorrosion |
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