蠕变断裂寿命

基于Abductive网络的镍基单晶高温合金蠕变断裂寿命预测

Prediction of Creep Rupture Life of Single Crystal Ni-Based Superalloy by Abductive Network

P92钢是目前超超临界机组主蒸汽管道的应用钢种，其蠕变断裂寿命被广泛关注。

The P92 steel is a steel sort being used for main steam pipelines of ultra-supercritical units at present , its creep rupture life has widely drawn close attention .

利用人工神经网络，使用BP算法对镍基高温合金蠕变断裂寿命进行研究。

The creep rupture life of Ni-base superalloy was investigated by the BP algorithm based on ANN method .

结果表明12Cr1MoV钢疲劳蠕变断裂寿命随交变应力变化呈反C型特殊规律，其交互作用曲线既不同于纯疲劳的S-N曲线，又不同于纯蠕变断裂曲线，而是两者的综合。

The results showed the curve of interaction occured in opposite " C " shape . It was different from that of the normal S-N curve and creep curve . And could be envisaged as a combination of pure fatigue and pure creep curves .

Re对一种单晶高温合金蠕变断裂寿命的影响

Effects of Rhenium on Creep Rupture Life of a Single Crystal Superalloy

人工神经网络法在镍基变形合金蠕变断裂寿命预测中的应用

Application of Artificial Neural Network to Predicting Creep Rupture Life of Nickel-base Superalloys

用人工神经网络法预测镍基单晶高温合金的蠕变断裂寿命

Artificial neural network prediction of creep rupture life of nickel base single crystal superalloys

影响疲劳/蠕变断裂寿命分散性的因素主要有层合板的铺设结构、木材缺陷和竹材结构等的影响。

The influence factors of fracture life are composites board 's lay structure , wood-lacuna , and bamboo structure .

结果表明：降低合金含钴量对合金的瞬时拉伸性能影响不大，但降低合金的弹性模量，钴显著影响合金的蠕变速率和蠕变断裂寿命。

The results indicate that lowering cobalt content has a little influence on the tensile properties , but a great influence on the creep rate and the stress rupture life .

在试验数据的基础上，利用人工神经网络建立不同成分镍基变形合金的不同温度，外应力与蠕变断裂寿命之间关系模型，并进行网络训练，对合金的蠕变断裂寿命进行模拟。

Based on experimental data , an artificial neural network method is used to develop a model to predict the creep rupture life of different types of nickel-base wrought superalloys .

缺口试样高温环境疲劳蠕变交互作用的断裂寿命主要应力、温度和缺口形状的影响。

In addition , the failure of notched specimens under fatigue-creep interaction at elevated temperature mostly depends on stress , temperature and notch shape .

为提高电站锅炉过热器铁素体－奥氏体异种钢焊接接头的高温蠕变断裂强度和服役寿命，设计了专用的镍基填充材料及组合焊接接头。

A special nickel-based weld transition joint has been designed for raising the creep strength and service life of the ferritic-austenitic dissimilar metal welded joints , which have been used in super-heaters of power plant boilers .

试验结果指出，弯曲晶界试样与平直晶界试样相比，在850℃、35kg/mm~2条件下，蠕变断裂塑性平均提高73%，蠕变断裂寿命平均提高26%。

The results show that at the temperature of 850 ℃, load 35 kg / mm2 , the plastic property of average creep fracture of zigzag grain boundaries increases about 73 % and the average creep fracture life increases about 26 % as compared with the straight grain boundaries .