| 基于修正θ投影法的GH4169高温合金蠕变寿命预测 |
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| 引用本文： | 张爽,刘峰,李荣华,张国铭.基于修正θ投影法的GH4169高温合金蠕变寿命预测[J].辽宁石油化工大学学报,2020,40(3):69. |
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| 作者姓名： | 张爽 刘峰 李荣华 张国铭 |
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| 作者单位： | 辽宁石油化工大学 机械工程学院，辽宁 抚顺 113001 |
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| 摘 要： | 在不同温度和不同应力条件下，对GH4169高温合金进行了蠕变实验，得到不同参数下的蠕变数据并绘制了相应的蠕变寿命曲线。利用修正θ投影法，对得到的实验寿命曲线进行非线性拟合，建立了温度、应力相关的蠕变方程。用所建立的蠕变方程验证了GH4169高温合金蠕变寿命曲线，结果表明吻合性较好，达到了蠕变寿命预测的效果。
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| 关 键 词： | GH4169合金 修正θ投影法 蠕变 寿命预测 |
| 收稿时间： | 2019-11-01 |
Creep Life Prediction of GH4169 Based on the Modified θ Projection Method |
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| Zhang Shuang,Liu Feng,Li Ronghua,Zhang Guoming.Creep Life Prediction of GH4169 Based on the Modified θ Projection Method[J].Journal of Liaoning University of Petroleum & Chemical Technology,2020,40(3):69. |
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| Authors: | Zhang Shuang Liu Feng Li Ronghua Zhang Guoming |
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| Affiliation: | School of Mechanical Engineering，Liaoning Shihua University，Fushun Liaoning 113001，China |
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| Abstract: | Based on modified θ projection method, creep experiments were carried out on GH4169 superalloy under different temperature and stress conditions,the creep data under different parameters were obtained and corresponding creep curves were drawn.The modified θ projection method was used to perform nonlinear fitting of the obtained experimental curve,and creep equations related to temperature and stress were established.The creep life curve of GH4169 superalloy is verified by the creep equations,and the results are in good agreement,so as to reach the effect of creep life prediction. |
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| Keywords: | Superally GH4169 Modified &theta projection method Creep Life prediction |
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