| 单晶叶片材料拉/压屈服特性的力学研究 |
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| 引用本文： | 岳珠峰,郑长卿.单晶叶片材料拉/压屈服特性的力学研究[J].航空学报,1993,14(9):556-559. |
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| 作者姓名： | 岳珠峰 郑长卿 |
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| 作者单位： | 西北工业大学工程力学系，西北工业大学工程力学系 西安 710072，西安 710072 |
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| 摘 要： | 在Ni基单相(γ′)单晶合金拉/压屈服规律的基础上,对单晶叶片材料(γ′和γ两相)进行了分析。给出了一组能反映其屈服规律的力学表达式和分析程序,并用实验结果进行验证。
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| 关 键 词： | 单晶叶片材料 单相单晶合金 拉/压屈服规律 力学表达式 |
THE STUDY OF THE TENSION/COMPRESSION YIELD BEHAVIOR OF SINGLE CRYSTAL BLADE SUPERALLOYS |
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| Yue Zhu-feng,Zheng Chang-qing.THE STUDY OF THE TENSION/COMPRESSION YIELD BEHAVIOR OF SINGLE CRYSTAL BLADE SUPERALLOYS[J].Acta Aeronautica et Astronautica Sinica,1993,14(9):556-559. |
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| Authors: | Yue Zhu-feng Zheng Chang-qing |
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| Institution: | Dept. of Applied Mechanics, Northwestern Polytechnical University, X'i'an, 710072 |
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| Abstract: | Based on the tension / compression yield behavior of nickel base single phase (r' ) single crystals, the yield behavior of single crystal blade superalloys (made of r' and r phases) has been studied. It is shown that the activation of octahedral slip systems is determined by LCP or PPV models and Schmid law down and up the tip temperature, respectively, and that of cube slip systems can be determined by Schmid law on certain precise degree. The tip temperature which is dependent on crystal orientations is relative to the activation of cube slip systems and the destruction of Kear-Wilsdorf dislocation mechanism. The yield laws and analytical procedures put forward in the paper are confirmed quantitatively by experimental results. |
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| Keywords: | Single crystal blade superalloy single phase single crystal superalloy tension / compression yield behavior mechanical expressions |
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