随着应变速率的增加,稳态流变应力增大;
The flow stress increases with the increase of strain rates.
输出参数是流变应力。
结果表明,流变应力取决于变形温度和变形速率。
It is found that flow stress is dependent on deformation temperature and strain rates.
在压缸内的摩擦力和铝锭的流变应力引起温度变化。
The temperature change is caused by the friction in the container and the flow stress of the aluminum.
分析比较了合金流变应力对温度及应变率的敏感性。
The sensitivities of the plastic flow stress to strain rate and temperature are analyzed.
当温度一定时,流变应力随着应变速率的升高而增大。
When deformation temperature is constant, flow stress increases with the increase of strain rate.
随着拉伸速度的减小,合金的流变应力减小,延伸率增大。
The flow stress decreases and the elongation increases with the decrease of stress rate .
依据现有的流变学定律估算的流变应力应该在几十兆帕以上。
Stress level is estimated at tens of MPa based on existing flow laws.
流变应力和峰值应变随变形温度的升高和应变速率的降低而减小;
The results show that the flow stress and peak strain of 300M steel increase with the increase of strain rate or the decrease of deformation temperature.
流变应力随着变形速率的增加而增加,随着变形温度的升高而降低。
The flow stress decreases with the increase of deforming temperature and increases with the increase of strain rate.
结果表明,流变应力随着温度的升高而降低,随应变率的升高而增大。
It was pointed out that the flow stress decreases with the increase of deforming temperature, while increased with the increasing of strain rate.
结果表明:在同一温度下,应变速率不同,材料的流变应力模式不同;
The results show that the model of deformation resisitance is different at the same deformation temperature and the different stain rate.
金属钼是正应变速率敏感性材料,即流变应力随着变形速率的增加而增大。
Molybdenum is strain rate sensitive material, that is, flow stress increases with increasing strain rate.
结果表明:应变速率和变形温度对合金的流变应力与变形组织有显著影响。
The results showed that the flow stress and deformed microstructure were greatly affected by strain rate and deformation temperature.
峰值流变应力随着变形温度的升高而下降,且下降速率随着温度升高而降低;
The maximum flow stress decreased with the increase of the temperature, furthermore, the reduction speed decreased with the increase of the temperature.
确定管道流变应力的不确定性分布是对含缺陷压力管道进行可靠性评定的前提。
For assessing reliability of a pressure piping containing defects, it is necessary to know the calculation method and the distributions of flow stress of material.
本文分析了鞍钢1780生产的两种低碳钢在热连轧过程中平均流变应力的变化。
The variation of mean flow stress of two kinds of low carbon steel rolled in Angang 1780 finishing mill were analyzed.
试验结果表明,流变应力和峰值应变随变形温度的降低和应变速率的提高而增大。
The results show that the flow stress and peak strain increase with either increasing strain rate or decreasing deformation temperature.
分析了不同分流模模桥结构下焊合面上接触压力、流变应力和速度场的分布及其变化。
The distributions and changes of the contact pressure, flow stress and velocity field on the welding plane were analyzed.
对1050铝合金进行了热轧试验,当达到很大的积累应变时,会产生饱和的流变应力。
Hot rolling testing of1050aluminium alloy developed saturation flow stresses at very large accumulated strains.
结果表明:实验条件下,流变应力及峰值应变随变形温度的降低和应变速率的提高而增大。
The results show that the flow stress and peak strain increase with increasing strain rate or decreasing deformation temperature.
结果表明:弹性模量和流变应力随变形温度的升高而降低,而流变应力随应变速率的提高而增大。
Results show that the elastic modulus and flow stress decreases with the increase of temperature, while the stress rises with the strain rate increases.
采用真应力一真应变曲线和TEM研究其高温压缩变形中的流变应力行为和它的动态再结晶过程。
The dynamic recrystallization mechanism during hot compress was examined by the true stress-strain curves and TEM.
研究了AA70 0 5合金高温压缩变形时的流变应力、动态回复与再结晶以及变形组织变化特征。
The flow behavior and dynamic recovery and recrystallization, as well as microstructure evolution, of AA7005 aluminium alloy in hot compression were investigated.
研究表明,6061铝合金热压缩塑性变形时的流变应力和应变速率之间的关系满足双曲正弦函数关系式;
The results show that relationship between flow stress and strain rate is applied to hyperbolic sine equation in the hot compressive deformation of 6061 aluminum alloy;
稳态项是金属材料在亚热变形过程中的稳态流变应力模型,而修正项是指流变应力随应变的变化而变化的部分。
The steady state term is the steady flow stress model of metal materials in the semi-hot forming process, and it is a model related to the Z parameter;
神经网络可以预测不同应变下的相应的流变应力,但是本构方程只可以根据不同的应变速率和温度来预测峰值应力。
And ANN model could predict the corresponding flow stress at different strain, but constitutive equations could only predict the peak stress depending on different strain rates and temperatures.
结果表明,复合材料在高温下的流变应力较低,峰值应力与变形温度、应变速率之间的关系在低应力区符合指数关系。
The results show that, the flow stress of SiCP/AZ61 composite is low, the relationship between peak stress and temperature or strain rate is exponential relationship.
结果表明,所建立的网络模型具有优良的性能,能精确预测AZ61 B合金热变形条件下的再结晶晶粒尺寸及流变应力。
The result indicates that models are good enough to exactly predict recrystallization grain size and flow stress of AZ61...
由试验得出变形过程中的真应力真应变曲线,并利用本构方程对流变应力值进行修正,进而根据修正后的应力值绘制功率耗散图。
The flow stress was corrected by the constitutive equation and the power dissipation map was obtained using the corrected stress.
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