| 1Cr18Ni9Ti不锈钢单轴饱和棘轮演化模型 |
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| 引用本文： | 叶裕明,蔡力勋.1Cr18Ni9Ti不锈钢单轴饱和棘轮演化模型[J].西南交通大学学报,2004,39(6):797-800,818. |
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| 作者姓名： | 叶裕明 蔡力勋 |
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| 作者单位： | 西南交通大学应用力学与工程系,四川,成都,610031 |
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| 摘 要： | 在常温与高温下，对1Cr18Ni9Ti不锈钢进行单轴应力控制下的棘轮循环试验，分析峰值应力、平均应力、低应力循环历史及温度对饱和棘轮应变的影响．基于峰值应力与饱和棘轮应变的单调抛物率关系及棘轮门槛应力值与温度的线性关系，利用单试样法建立了1Cr18Ni9Ti不锈钢常温和高温下的饱和棘轮演化模型。
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| 关 键 词： | 平均应力 不锈钢 棘轮应变 棘轮应力 演化模型 |
| 文章编号： | 0258-2724(2004)06-0797-05 |
Modeling Uniaxial Saturated Ratcheting Strain for 1Cr18Ni9Ti Stainless Steel |
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| YE Yu-ming,CAI Li-xun.Modeling Uniaxial Saturated Ratcheting Strain for 1Cr18Ni9Ti Stainless Steel[J].Journal of Southwest Jiaotong University,2004,39(6):797-800,818. |
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| Authors: | YE Yu-ming CAI Li-xun |
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| Abstract: | A set of uniaxial ratcheting tests for 1Cr18Ni9Ti stainless steel were carried out at room and elevated temperatures. The effects of peak stress, mean stress, low cyclic stressing histories and temperature on saturated ratcheting (SR) strain were investigated. Based on the parabolic relation between peak stress and SR strain, and the linear relation between ratcheting stress and temperature, the saturated ratcheting evolution models at room and elevated temperatures were presented by using single-specimen method. |
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| Keywords: | mean stress stainless steel ratcheting strain ratcheting stress evolution model |
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