| 气轮机隔板埋铸叶片断裂分析 |
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| 引用本文： | 杜晓明,董秀琦,朱丽娟,施庭芳,董红潮.气轮机隔板埋铸叶片断裂分析[J].特种铸造及有色合金,2002(4):23-25. |
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| 作者姓名： | 杜晓明 董秀琦 朱丽娟 施庭芳 董红潮 |
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| 作者单位： | 1. 沈阳工业学院
2. 杭州气轮机股份有限公司 |
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| 摘 要： | 供助光学显微镜，扫描电镜等手段，对用埋铸法生产的T9815气轮机组隔板断裂部位的金相组织特征，宏观和微观断口形貌等进行了研究，结果表明：由于高温铁水对叶片铸入部位的冲刷，增强作用，使不锈钢铸铁化进而使叶片铸入部位强度降低，在拉应力的作用下导致叶片铸入部位开裂。
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| 关 键 词： | 气轮机 埋铸隔板 断裂 增碳 |
| 文章编号： | 1001-2449(2002)04-0023-03 |
| 修稿时间： | 2002年4月28日 |
Rupture Analysis on Closure with Embedded Blade Casting of Gas Turbine |
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| Du Xiaoming,Dong Xiuqi,Zhu Lijuan.Rupture Analysis on Closure with Embedded Blade Casting of Gas Turbine[J].Special Casting & Nonferrous Alloys,2002(4):23-25. |
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| Authors: | Du Xiaoming Dong Xiuqi Zhu Lijuan |
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| Abstract: | The microstructure characteristics, macro and micro fracture morphology of brittle broken embedded casting closure of T9815 turbines were investigated by means of metallographical examination and SEM. The results showed that the blade rupture resulted from the red hot molten iron, washing out and carburizeing the stainless steel piece so as to decrease the strength of the blades insert position. |
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| Keywords: | Closure with Embedded Blade Casting Rupture Carburization |
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