| TA_5钛合金低循环疲劳特性试验研究 |
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| 引用本文： | 秦广义,魏武.TA_5钛合金低循环疲劳特性试验研究[J].热能动力工程,1995,10(5):310-316. |
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| 作者姓名： | 秦广义 魏武 |
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| 作者单位： | 哈尔滨七０三研究所 |
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| 摘 要： | 对特定规格ＴＡ５钛合金不件取样进行低循环疲劳试验研究，得到疲劳寿命曲线和应变寿命关系式，考虑适当的安全系数给出了ＴＡ５钛合金的设计疲劳曲线并分析了应力循环硬／软化特性。最后通过有限元应力分析，论述 主要承压部件采用单金属ＴＡ５钛合金代替以往双金属结构后钭大大提高使用寿命。
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| 关 键 词： | 钛合金 应力分析 冷凝器 疲劳 艇 寿命 有限元 |
An Experimental Study on the High-strain Low-cycle Fatigue Characteristics of a TA_5 Titanium Alloy |
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| Qin Guangyi, Wei Wu, Tan Hong.An Experimental Study on the High-strain Low-cycle Fatigue Characteristics of a TA_5 Titanium Alloy[J].Journal of Engineering for Thermal Energy and Power,1995,10(5):310-316. |
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| Authors: | Qin Guangyi Wei Wu Tan Hong |
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| Affiliation: | Harbin 703 Research Institute |
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| Abstract: | Samples were taken from a ring-shaped special-type TA5 titanium alloy to perform an experimental study on its highstrain low-cycle fatigue characteristics,and fatigue life characteristic curves and strain-life relation were obtained. After selecting a proper safety factor the authors provide fatigue design curves for the TA5 titanium alloy and analyse stress cycle hardening/softening characteristics.Finally,by way of a finite element stress analysis it has been proved that the service life of the deep-diving condenser can be significantly enhanced if the main pressure-carrying components are made of single-metal TA5 titanium alloy instead of the former bi-metallic construction. |
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| Keywords: | titanium alloy fatigue characteristic curves stress analysis condenser |
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