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长时热老化对16MND5疲劳性能的影响

Science&Technology Vision(2021)

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Abstract
通过热老化加速试验和低周循环试验研究了不同老化时长和应变幅值下反应堆压力容器用钢16MND5疲劳性能的演化规律.结果表明,热老化加快材料的软化速率,降低材料的屈服极限.当老化时长达到5000小时后,材料的疲劳性能没有进一步劣化,说明长时热老化对于材料疲劳性能的影响不大.
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