tension n. 1.拉緊;伸張。 2.(精神、局勢(shì)等)緊張。 3.【物理學(xué)】張力,拉力,牽力;(彈性體的)應(yīng)力;(蒸氣等的)膨脹力,壓力。 4.【電學(xué)】電壓,拉伸力,拉緊[繃緊]裝置,繃子。 create [ease, reduce] the international tension 制造[緩和]國際緊張局勢(shì)。 reduce [relieve] the tension of the market 緩和市場緊張情況。 T- runs high. 形勢(shì)極為緊張。 surface tension 表面張力。 vapor tension 蒸氣張力。 a high tension current 高壓電流。 tension failure 伸張破壞。 vt. 張緊,使緊張。 adj. -al
In this dissertation , the effect of texture , heat - treatment , and hydrogen on the lcf behavior of zircaloy - 4 and the cyclic deformation behavior for zircaloy - 4 , n18 alloy and n36 alloy have been investigated systematically using fully - reversed tension - compression loading under strain control ( r = min / max = - 1 ) , while the evolvement of the friction and back stresses versus the number of repeated working cycles and the plastic strain amplitude has been studied , and the thorough discussion combined with the analysis result of fatigue sub - structure , friction and back stresses , and fatigue fracture has been given to the mechanism underlying the lcf behavior of alloys 本文采用對(duì)稱拉壓循環(huán)變形方法( r _ = _ ( min ) _ ( max ) = - 1 ) ,系統(tǒng)研究了織構(gòu)、熱處理狀態(tài)、氫對(duì)zr - 4合金低周疲勞性能的影響, zr - 4合金、 n18合金和n36合金的循環(huán)變形行為,并研究了摩擦應(yīng)力、背應(yīng)力隨循環(huán)周次、塑性應(yīng)變幅的變化規(guī)律。結(jié)合疲勞亞結(jié)構(gòu)和疲勞斷口的分析結(jié)果,深入探討了影響合金低周疲勞行為的作用機(jī)制。