Static and Cyclic Deformation Behavior of the Ferritic Steel 16Mo3 Under Monotonic and Cyclic Loading at High Temperatures
Static and Cyclic Deformation Behavior of the Ferritic Steel 16Mo3 Under Monotonic and Cyclic Loading at High Temperatures
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铁素体钢16Mo3在高温单调和循环载荷下的静态和循环变形行为
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
H. Biermann
中科院分区：
文献类型：
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作者：
M. Hoffmann;H. Biermann
铁素体钢 16Mo3 通常用于热交换器和蒸汽发生器。这些应用的温度负载条件通常为 200 至 500°C。为了了解 16Mo3 钢的基本特性，通过不同应变率的拉伸试验来确定其性能。在 200 和 300°C 时，观察到负应变率敏感性，这是由于动态应变老化（Portevin-LeChâtelier 效应）造成的。为了表征该钢的低周疲劳 (LCF) 行为，在 200 和 500°C 和不同应变幅值下进行了等温应变控制 LCF 试验。循环应力响应曲线在研究温度下显示出主要不同的过程。通过在不同应变幅值、驻留时间为 30 秒和 120 秒的循环载荷增强试验获得应力松弛行为。
The ferritic steel 16Mo3 is commonly used for heat exchangers and steam generators. The temperature loading conditions for these applications range typically from 200 to 500°C. For a basic characterization of the steel 16Mo3, the properties were determined by means of tensile tests with different strain rates. At 200 and 300°C, a negative strain‐rate sensitivity was observed which is due to dynamic strain ageing (Portevin–LeChâtelier effect). To characterize the low cycle fatigue (LCF) behavior of this steel, isothermal strain‐controlled LCF tests were carried out at 200 and 500°C at different strain amplitudes. The cyclic stress response curves are showing principally different courses at the investigated temperatures. The stress relaxation behavior was obtained by cyclic load enhancement tests at various strain amplitudes with dwell times of 30 and 120 s.