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等温循环
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  “等温循环”译为未确定词的双语例句
     A CONSTITUTIVE MODEL OF ANISOTHERMAL CYCLIC VISCOPLASTICITY
     非等温循环粘塑性本构模型研究
短句来源
     The cyclic strain Hardening exponent under thermal-mechanical cycling was greater than that of isothermal cycling at the upper limit of the thermal-mechanical cyclic temperature range.
     热—机械疲劳时的循环应变硬化指数,大于上限温度的等温循环应变硬化指数。
短句来源
     There was little difference in fatigue resistance between in phase and out of phase cycling. But both were a little higher than that of isothermal cycling at 550℃.
     同相位和逆相位热—机械疲劳抗力相差不大,但都稍高于550℃等温循环时的疲劳抗力。
短句来源
     The present model is applied to description of anisothermal cyclic deformation behaviors of 1Cr18Ni9Ti stainless steel,and the predications are in good agreement with the experimental results. It is shown that the model describes the effects of the temperature history under uniaxial cyclic loading very well.
     将本文模型用于1Cr18Ni9Ti不锈钢的单轴非等温循环加载历史下材料变形行为的本构描述中,其预言结果与实验结果吻合较好,表明该模型能很好地描述材料在非等温条件下的循环变形行为。
短句来源
  相似匹配句对
     Precise Calculation of the Volumes of Recycle Reactors with Constant Temperature and Variable Volume
     等温变容循环反应器体积的精确计算
短句来源
     Efficiency of Isothermany Isoelectric Cycle of Ferroelectric Thermo-Electric Direct Convertor
     铁电体热机的等温等电压循环效率
短句来源
     (2) isothermal;
     一般等温;
短句来源
     The Doming cycle
     “Deming”循环
短句来源
     RECYCLE
     循环再利用
短句来源
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  isothermal cycle
Determination of this effective tempering parameter is based on finding an effective time and temperature which allows the continuous cycle to be described in terms of an equivalent isothermal cycle.
      
By considering the isothermal cycle of the dilution of Dead Sea water, the partial heat of evaporation of water from Dead Sea water was found to be ca.
      
  constant temperature cycle
A constant temperature cycle was used to estimate the required cooling capacity for the design day weather.
      
Also, the near constant temperature cycle heat rejection process Was found to be compatible with the low temperature rise in the LSR working fluid.
      


The thermal-mechanical fatiuge resistance of pearlitic heat-resistaace steel GH34 was investigated. The thermal-mechanical fatigue experiments were conducted both with maximum strain in phase with maximum temperature and out of phase with maximum temparature. The controlling wave was triangular with 0.008Hz in the temperature range 200(?)500℃. Steel GH34 after quenching and high temperature tempering, when subjected to thermal-mechanical cycling showed cyclic softening. The cyclic strain Hardening exponent under...

The thermal-mechanical fatiuge resistance of pearlitic heat-resistaace steel GH34 was investigated. The thermal-mechanical fatigue experiments were conducted both with maximum strain in phase with maximum temperature and out of phase with maximum temparature. The controlling wave was triangular with 0.008Hz in the temperature range 200(?)500℃. Steel GH34 after quenching and high temperature tempering, when subjected to thermal-mechanical cycling showed cyclic softening. The cyclic strain Hardening exponent under thermal-mechanical cycling was greater than that of isothermal cycling at the upper limit of the thermal-mechanical cyclic temperature range. There was little difference in fatigue resistance between in phase and out of phase cycling. But both were a little higher than that of isothermal cycling at 550℃. Isothermal low cycle fatigue life at 550℃ may be substituted for thermal-mechanical fatigue life, the result being satifactory.

本文研究了珠光体耐热钢GH34的热—机械疲劳性能。热—机械疲劳试验在最大应变与最高温度同相位和逆相位两种情况下进行。控制波形为三角波,频率为0.008Hz,温度范围为200(?)550℃。GH34在淬火+高温回火状态下,经受热—机械循环,表现出循环软化的特性。热—机械疲劳时的循环应变硬化指数,大于上限温度的等温循环应变硬化指数。同相位和逆相位热—机械疲劳抗力相差不大,但都稍高于550℃等温循环时的疲劳抗力。用550℃等温低周疲劳寿命代替200(?)550℃的热—机械疲劳寿命是可行的,且结果偏于安全。

A viscoplastic constitutive model for describing effects of temperature history is suggested.In the model,three evolution equations of back stresses with different evolution rates are introduced,and the evolution equations with the memory on the previous loading history and temperature history of the isotropic deformation resistance are proposed.The present model is applied to description of anisothermal cyclic deformation behaviors of 1Cr18Ni9Ti stainless...

A viscoplastic constitutive model for describing effects of temperature history is suggested.In the model,three evolution equations of back stresses with different evolution rates are introduced,and the evolution equations with the memory on the previous loading history and temperature history of the isotropic deformation resistance are proposed.The present model is applied to description of anisothermal cyclic deformation behaviors of 1Cr18Ni9Ti stainless steel,and the predications are in good agreement with the experimental results.It is shown that the model describes the effects of the temperature history under uniaxial cyclic loading very well.

本文提出了一个考虑在非等温条件下循环硬化行为的温度依赖性的粘塑性本构模型。在该模型中,引入了三个具有不同演化速率的背应力演化方程;对各向同性变形阻力引入了具有先前加载历史和温度历史记忆的演化方程。将本文模型用于1Cr18Ni9Ti不锈钢的单轴非等温循环加载历史下材料变形行为的本构描述中,其预言结果与实验结果吻合较好,表明该模型能很好地描述材料在非等温条件下的循环变形行为。

Effects of surface orientation on the isothermal and cyclic oxidation behavior of directionally solidified IC-6 alloy were studied by means of TGA, SEM/EDAX and SEM/EPMA. The longitudinal specimens are less resistant than transverse specimens with respect to isothermal oxidation at 950℃ and 1050℃ for 100 hours. It is claimed that grain boundaries intersecting the surface of transverse specimen facilitate short cut diffusion of Al atoms in the substrate to assist Al2O3 nucleation and growth on the surface. On...

Effects of surface orientation on the isothermal and cyclic oxidation behavior of directionally solidified IC-6 alloy were studied by means of TGA, SEM/EDAX and SEM/EPMA. The longitudinal specimens are less resistant than transverse specimens with respect to isothermal oxidation at 950℃ and 1050℃ for 100 hours. It is claimed that grain boundaries intersecting the surface of transverse specimen facilitate short cut diffusion of Al atoms in the substrate to assist Al2O3 nucleation and growth on the surface. On the contrary, transverse specimens show poor cyclic oxidation resistance in comparison with longitudinal specimens due to the easiness of Al2O3 spallation upon temperature fluctuation. The contribution of lattice diffusion grows with temperature so that both specimens have the same disastrous weight loss rate when cyclically oxidized at 1100℃.

采用TGA、EDAX及XRD等研究了定向凝固IC-6合金表面取向对其等温、循环氧化行为的影响.发现平行于凝固方向的纵切样品在950℃及1050℃下经100小时的等温氧化速率均明显大于横切样品的.这与横切样品表面存在品界,有利于铝的短路扩散有关。相反,由于Al_2O_3膜比较容易剥落,使横切样品表面在950℃抗循环氧化能力比纵切样品的差。在1100℃,晶界短路扩散作用减弱,横切与纵切样品循环氧化行为都表现出灾难性失重现象。

 
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