| GH4169合金的低温冲击试验 |
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| 引用本文： | 孔永华,王飞,李东方,陈国胜,朱世根. GH4169合金的低温冲击试验[J]. 低温工程, 2011, 0(4) |
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| 作者姓名： | 孔永华 王飞 李东方 陈国胜 朱世根 |
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| 作者单位： | 1. 东华大学机械工程学院 上海201620
2. 宝钢集团特殊钢分公司 上海200940 |
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| 基金项目： | 上海市重大基础研究项目子课题(08dj1400405) |
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| 摘 要： | 对GH4169高温合金边缘和中心部位进行了低温冲击试验,比较晶粒大小对合金冲击功的影响,进一步进行室温冲击试验,比较室温冲击和低温冲击冲击功的大小。同时还对径锻试样和热连轧试样低温冲击所需要的冲击功进行对比,并用SEM观察了冲击断口的表面。结果表明:晶粒越细小,所用的冲击功越大;低温冲击和室温冲击所用的冲击功几乎一样;热连轧试样低温韧性要远远好于径锻试样,冲击端口为韧窝断口。
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| 关 键 词： | GH4169合金 低温冲击 韧性 冲击功 |
Impact research of alloy GH4169 at low temperature |
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| Kong Yonghua,Wang Fei,Li Dongfang,Chen Guosheng,Zhu Shigen. Impact research of alloy GH4169 at low temperature[J]. Cryogenics, 2011, 0(4) |
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| Authors: | Kong Yonghua Wang Fei Li Dongfang Chen Guosheng Zhu Shigen |
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| Affiliation: | Kong Yonghua1 Wang Fei1 Li Dongfang1 Chen Guosheng2 Zhu Shigen1(1College of Mechanical Engineering,Donghua University,Shanghai 201620,China)(2Baosteel Group,Special Steel Branch,Shanghai 200940,China) |
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| Abstract: | The central and edge parts of high temperature alloy GH4169 were impacted at low temperature.It was found that the alloy grain size could produce an effect on the impact energy.Then the samples were impacted at room temperature researching the impact energy at low and room temperature.In addition,impact energy was compared between forging and hot rolling samples and the morphology of impact fracture surface was observed by SEM.The results indicate that impact energy of alloy GH4169 increases as the decrease... |
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| Keywords: | alloy GH4169 low temperature impact toughness impact energy |
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