| ZN310型叶轮的断裂失效分析 |
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| 引用本文： | 陈俊峰,孙占刚.ZN310型叶轮的断裂失效分析[J].热加工工艺,2006(4). |
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| 作者姓名： | 陈俊峰 孙占刚 |
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| 作者单位： | 河北邮电器材机械厂 河北保定071000(陈俊峰)，承德石油高等专科学校 河北承德067000(孙占刚) |
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| 摘 要： | 针对叶轮超速检测试验中出现的断裂问题,通过宏观与微观断口形貌观察、零件材料LD7、金相组织的分析等方法对叶轮断裂的原因进行综合分析,找到了产生断裂现象的原因。即叶轮断裂是由于锻造加热时温度控制不好导致过热,在随后的淬火工序中又因加热温度过低,组织固溶强化效果差等综合原因所致。
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| 关 键 词： | 叶轮 LD7 断裂 过热 |
Failure Analysis on Fracture of ZN310 Turbine Wheel |
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| CHEN Jun-feng,SUN Zhan-gang.Failure Analysis on Fracture of ZN310 Turbine Wheel[J].Hot Working Technology,2006(4). |
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| Authors: | CHEN Jun-feng SUN Zhan-gang |
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| Abstract: | Aimed at the problem of fracture during the excessive speed test of turbine wheel, through observing the appearance of a fracture by means of macro and micro ways and analyzing the material LD7, metallography, the causes of the fracture were analyzed. The results show that the fracture is caused by the heating temperature controlled improperly during forging which leads to the over heat, and the heating temperature is too low in the following quenching process that leads to the bad solution strengthening. |
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| Keywords: | turbine wheel LD7 fracture over heat |
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