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Hot underwater life forecasting modulo null of Ni basic alloy and Fe basic
Hot underwater life forecasting modulo null of Ni basic alloy and Fe basic
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机译：Ni基合金和Fe基的热水下寿命预测模数
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摘要
PURPOSE: To estimate the life of the Ni-based alloy and Fe-based alloy in the high temperature water by obtaining the ratio of the total sum of the length of particle field carbide for the total sum of the particle field length in each of the Ni-based alloy and Fe-based alloy. ;CONSTITUTION: 600 alloy based on a Ni-base in which the precipitation state of particle field carbide is changed is previously prepared, and the stress corrosion crack time in the pure water having a temperature of 360°C is obtained. The 600 alloy is treated with the electrolytic etching having a 0.5A/cm2 in a 10% aqueous solution of nitric acid, and after the distinct discrimination in the particle field is enabled, the 4500× electronmicroscope observation is carried out, and the total particle field length and the total particle field carbide length are obtained from the observation photographs by an image processor, and the total particle field carbide length/total particle field length = particle field carbide ratio is obtained. The obtained particle field carbide ratio and the stress corrosion crack time are plotted, and correlation is obtained. Since the obtained stress corrosion crack time is the estimation value in the vicinity of 320°C, the temperature accelerating factor α is obtained by the comparison of the tests which are carried out at 360°C by using the material having the high sensitivity, and the stress corrosion crack time at 360°C is multiplied by α, and the stress corrosion crack time in the vicinity of 320°C is estimated.;COPYRIGHT: (C)1993,JPO&Japio
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机译：目的：通过求出每个碳纳米管中粒子场长的总和与粒子场长的总和之比，来估算高温水中的镍基合金和铁基合金的寿命。镍基合金和铁基合金。 ;组成：预先制备了一种基于Ni基的600合金，其中改变了颗粒场碳化物的析出状态，并获得了温度为360°C的纯水中的应力腐蚀开裂时间。在10％的硝酸水溶液中用0.5A / cm 2 的电解蚀刻对600合金进行处理，并且在能够区分颗粒场之后，用4500倍电子显微镜观察通过图像处理器从观察照片获得总粒子场长度和总粒子场碳化物长度，并且获得总粒子场碳化物长度/总粒子场长度＝粒子场碳化物比率。绘制获得的颗粒场碳化物比率和应力腐蚀开裂时间，并获得相关性。由于所获得的应力腐蚀裂纹时间是在320℃附近的估计值，因此通过比较使用具有高灵敏度的材料在360℃下进行的试验，从而获得了温度促进因子α，并且将360°C下的应力腐蚀开裂时间乘以α，并估算出320°C附近的应力腐蚀开裂时间。;版权所有（C）1993，JPO＆Japio
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