The lcf behavior of a recrystallized zircaloy - 4 plate at room temperature and 400 show that alloy has better lcf property at rt than at 400 , and cyclic hardening at 400 which could be attributed to the dynamic strain aging effects . it is noticeable that the hydrided plate has the same cyclic behavior as the above unhydrided sample at room temperature 在400下,合金表现出与常温下不同的循环特性,其循环稳定滞后回线出现锯齿状波形,且在整个疲劳过摘要程中呈现出一致循环硬化的现象,这主要是因为合金在400下发生动态应变时效效应的结果。
Although sometimes dynamic strain aging is used interchangeably with the Portevin?Le Chatelier effect (or serrated yielding), dynamic strain aging refers specifically to the microscopic mechanism that induces the Portevin?Le Chatelier effect. This strengthening mechanism is related to solid-solution strengthening and has been observed in a variety of fcc and bcc substitutional and interstitial alloys, metalloids like silicon, and ordered intermetallics within specific ranges of temperature and strain rate.
dynamic: adj. 1.动力的,动力学的;力学(上)的;动(态)的 ...strain: n. 1.血统,家世;族,种;【生物学】品系,系;菌株; ...aging: age 的现在分词。 n. 1.陈酿。 2. ...strain aging: 机械时效; 应变老化; 应变时效dynamic strain: 动力应变; 动态应变; 动应变non-strain aging steel: 无应变时效钢strain-aging test: 应变时效钢dynamic modulus-strain curve: 动态模量-应变曲线dynamic standard strain device: 动态标准应变装置; 动态二次离子质谱法dynamic strain amplifier: 动态应变放大器dynamic strain indicator: 动态应变仪dynamic strain meter: 动态应变仪dynamic strain optical coefficient: 动态光弹性系数dynamic strain recording equipment: 动力应变记录设备dynamic stress and strain: 动态应力和应变dynamic stress-strain curve: 动力应力-应变曲线high dynamic strain indicator: 超动态应变仪sinusoidal-strain dynamic test: 正弦应变动力试验static-dynamic strain indicator: 静动态应变仪; 静态显示图象aging: age 的现在分词。 n. 1.陈酿。 2.熟化。 s strain: 光滑型菌珠; 平滑株s-strain: 奏光之strainstrain: vt. 1.用力拉,拉紧,抽紧,扯紧。 2.使紧张;尽量使用(肌肉等)。 3.强迫,强制;滥用,尽量利用。 4.拉伤,用力过度而弄伤,使工作过度;使用过度而弄坏;扭伤。 5.曲解,牵制附会。 6.【机械工程】使变形,扭歪。 7.抱紧。 8.滤 (out)。 vi. 1.尽力,拼命努力。 2.拉,拖 (at)。 3.扭歪,弯曲,快要折断。 4.滤过,渗出。 5.不肯接受。 strain one's ears 竖起耳朵注意听。 strain one's voice 拼命呼喊。 strain one's eyes 睁大眼睛看。 strain one's wit 绞尽脑汁。 strain oneself 过劳。 strain one's authority 滥用权力。 strain sb.'s good temper 利用某人脾气好。 Mary strained her baby to the breast. 玛丽把小孩紧抱在怀里。 strain a rope to the breaking point 将绳拉紧到快要断的程度。 strained relations between officers and men 搞得不好的官兵关系。 strain the law 曲解法律。 a strained interpretation 歪曲的翻译;牵强的解释。 He is straining under their pressure. 他是在他们的压力之下苦撑着。 It's the nature of plants to strain upwards to the light. 植物的本性是向上挺窜争取阳光。 You, too, will strain at such a demand. 你也会难以接受这样的要求的。 strain a point 逾分,过分,任意(曲解)。 strain after 尽力追求,拼命想得到[做到]。 strain at 为,辛苦[用气力,费神,尽力]。 strain at a gnat 为小事过分操心。 strain at the oar 拼命划。 strain courtesy 太讲礼貌,过分客气。 strain every nerve 倾全力;全神灌注 (to do)。 strain under pressure 在压迫下拼命挣扎。 n. 1.拉紧;紧张;尽力,出力。 2.过劳,使用过度;滥用,利用。 3.扭筋,脱臼。 4.【物理学】变形,歪曲;应力,张力;胁变,应变。 5.曲解。 put a great strain on sb.'s resources 使人担负过重的经济负担。 It was a great strain on my resources. 这在我财力上是一个很大的负担。 at full [utmost] strain=be on the strain 紧张,拼命。 stand the strain 拼命忍受。 under the strain 因紧张;因过劳。 n. 1.血统,家世;族,种;【生物学】品系,系;菌株;变种,小种。 2.性格,脾气;倾向,气质。 3.语气;笔调,文风;作风。 4.〔常 pl. 〕一段音乐,歌曲;诗歌。 5.一阵子滔滔不绝的言词;一阵子难听的话。 She comes of a peasant strain. 她出身于世代农家。 The Germany strain in him makes him like philosophy. 他的德意志民族的血统使得他喜欢研究哲学。 good strains of seed 良种。 a hybrid strain 杂交种。 a meat strain 肉用品种。 He has a strain of melancholy in him. 他有点忧郁。 in the same strain 以同样调子[作风]。 It was the commencement day and the head master would talk in a lofty strain. 那天是开学典礼,是校长高谈阔论的日子。 strain at: 紧拉, 紧拖dynamic: adj. 1.动力的,动力学的;力学(上)的;动(态)的;起动的。 2.有力的,有生气的;能动的;(工作)效率高的。 3.【音乐】力度;强弱法的。 4.【医学】机能(上)的。 5.【哲学】动力论的,力本论的。 a dynamic personality 活跃的性格。 a dynamic atmosphere 生气勃勃的景象。 a dynamic population 动态人口。 n. 〔限指 dynamic〕 (原)动力;动态。 adv. -ally