低周疲劳:又称条件疲劳极限,或“低循环疲劳”。参照零件工作周期可能作用的次数下能承受的应力极限值。(可以有效发挥材料的作用)。
根据构件疲劳破坏前所经历的循环次数,疲劳可分为: 低周疲劳(LCF):在循环应力水平较高,接近或超过材料的屈服极限时,塑性应变起 主导作用,在每一次应力循环中都发生了望性变形,塑性变形累积致...
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超低周疲劳 ELCF ; ULCF
高温低周疲劳 high temperature low cycle fatigue ; high temperature low cycle
多轴低周疲劳 multiaxial low-cycle fatigue
低周疲劳试验 Low cycle fatigue test
低周疲劳强度 low cycle fatigue strength
低周疲劳指数 LCFI
低周疲劳寿命范围 life range of low-cycle fatigue
叶片低周疲劳 low cycle fatigue of blade
低周疲劳寿命 low cycle fatigue life
The effects of recrystallization on low cycle fatigue behavior of DZ40M alloy are also investigated.
研究了再结晶对DZ40M合金低周疲劳性能的影响。
参考来源 - 定向凝固钴基高温合金DZ40M的再结晶行为The main disadvantages of conventional investment cast superalloys are micro- structural coarseness and non-uniformity of grain structures, resulting in lower yield strength and shorter low-cycle fatigue life of castings.
常规高温合金铸件存在晶粒粗大、碳化物和γ’等第二相也粗大且分布不均匀等问题,导致材料的屈服强度和低周疲劳性能低、热加工性能差。
参考来源 - K4169高温合金化学法晶粒细化工艺及机理的研究The article relates the characters of submarine low-circle fatigue, and modeling, analysis against a bulker of a submarine.
文中对潜艇低周疲劳的特点作了叙述,并对一个实际的艇体舱段进行建模、分析、计算。
参考来源 - 潜艇结构的疲劳分析·2,447,543篇论文数据,部分数据来源于NoteExpress
本文研究了一种定向凝固镍基高温合金的高温低周疲劳行为。
Low cycle fatigue (LCF) tests of a directionally solidified nickel base superalloy were conducted at elevated temperatures.
介绍了一种预测受多轴交变载荷工程构件的低周疲劳寿命的方法。
A method is outlined for making low cycle fatigue life prediction for engineering components subject to multiaxial loading.
建筑结构在地震作用下的破坏主要是由结构的低周疲劳累积损伤引起的。
The main destruction of constructions suffering from earthquake is brought by the accumulated damage of structures under low cycle fatigue.
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