| Q345R钢高温损伤的疲劳特性研究 |
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| 引用本文： | 李其,孙萍,陈猛.Q345R钢高温损伤的疲劳特性研究[J].化工装备技术,2014(3):43-45. |
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| 作者姓名： | 李其 孙萍 陈猛 |
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| 作者单位： | [1]东北石油大学机械科学与工程学院,大庆市163000 [2]中国石油天然气股份有限公司大庆炼化分公司,大庆市163000 |
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| 基金项目： | 国家自然科学基金资助项目（11072056）;国家自然科学基金资助项目（11272084）. |
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| 摘 要： | 应用疲劳强度理论和疲劳累积损伤理论,对高温损伤后的Q345R钢试样进行常规机械性能测试,利用Q345R钢的静特性去推测它的疲劳特性。建立了Q345R钢损伤因子的概念,提出了一种在用Q345R钢服役期限的确定方法,为科学、合理地使用Q345R钢提供了理论依据。
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| 关 键 词： | 高温损伤 静特性 疲劳特性 力学性能 损伤因子 Q345R钢 |
Research on Fatigue Properties of Q345R Steel after High Temperature Damage |
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| Li Qi Sun Ping Chen Meng.Research on Fatigue Properties of Q345R Steel after High Temperature Damage[J].Chemical Equipment Technology,2014(3):43-45. |
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| Authors: | Li Qi Sun Ping Chen Meng |
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| Affiliation: | Li Qi Sun Ping Chen Meng |
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| Abstract: | Tested regular mechanical properties of the Q345R steel samples after high temperature damage by fatigue strength theory and cumulative fatigue damage theory, utilizing the static properties to predict the fatigue properties of Q345R steel. Established the concept of damage factor for Q345R steel and put forward a method for determining the service life of the in-use Q345R steel, which provided a theoretical basis for the scientific and reasonable application of Q345R steel. |
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| Keywords: | High temperature damage Static property Fatigue property Mechanical property Damage factor Q345R steel |
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