Results 21 to 30 of about 128 (92)
基于线性匹配方法的核电站弯管在循环载荷下的安定性分析 [PDF]
, 2019 Ratcheting effect experiments of 90° elbow pipes under internal pressure and in-plane bending were carried out for nuclear power plants herein, and then the limit load, shakedown load and ratcheting boundary of 90°elbow pipes were studied by numerical ...
Chen, Haofeng, Chen, Xiaohui, Chen, Xu
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Configuration and Optimal Application of Gasification Equipment in the LNG Emergency Reserve Center [PDF]
, 2023 [Introduction] The technical analysis and investigation on the application of process equipment in the gasification area of the LNG (Liquefied Natural Gas) emergency reserve center, is carried out to solve the problems of frosting and icing in the ...
Zhaoyang FENG
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Jianzhu Gangjiegou Jinzhan, 2018 结合材性试验获得的不锈钢母材和焊缝金属材料本构关系模型,使用ANSYS有限元软件对奥氏体型S30408不锈钢角焊缝连接的承载性能进行了非线性有限元模拟,并将模拟结果与不锈钢正面角焊缝连接试件和侧面角焊缝连接试件拉伸试验结果进行了对比,验证了有限元模型的有效性。利用经试验验证的有限元模型对角焊缝承载力影响因素进行了参数分析,并将有限元模拟值与按照美国规范SEI/ASCE 8-02、欧洲规范EN 1993-1-4,以及中国《不锈钢结构技术规程》(CECS 410:2015)计算求得的规范设计值进行了对比 ...
张有振 +4 more
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, 1987 本文研究一次拉伸型过载对奥氏体不锈钢疲劳裂紋近门槛值扩展的影响.试验结果表明,过载对门槛值的影响和过载比P_0/P_(max)的大小有关;P_0/P_(max)>1.4时,门槛值随着过载比增加而线性提高.提出了裂纹扩展速率减缓和门槛值提高的主导原因是过載大大促进裂纹顶端闭合 ...
邓蓉英
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Electrochemical Behaviors of the 316L Stainless Steel Welding Seam Corrosion [PDF]
, 2013 316l不锈钢以其优良的耐腐蚀性能、加工性能和高抗氧化性能而被广泛应用于核电、石油、化工等领域。316l不锈钢的应用大多需要焊接成型,但焊接过程中化学成分,组织形态和相关性能的改变,使316l不锈钢的耐蚀性能降低,在焊缝接头处以及焊缝部位优先发生腐蚀,严重影响了不锈钢的使用寿命和安全性。本文采用交流阻抗法和阳极极化常规电化学方法,结合课题组自主研发的扫描微电极技术研究316l不锈钢焊缝区的腐蚀行为 ...
吕虹玮 +4 more
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FATIGUE CRACK GROWTH BEHAVIOR of 0Cr18Ni9 STAINLESS STEEL AT HIGH TEMPERATURES [PDF]
, 2012 研究奥氏体不锈钢0Cr18nI9在高温(550℃)下的疲劳裂纹扩展规律。测试采用标准CT(COMPACT TEnSIOn)试样,最大载荷范围为6.5 kn~14 kn,应力比为0.1(室温)和0.05(550℃)。裂纹扩展过程通过QuESTAr长焦距显微镜直接观测,同时采用COd(CrACk OPEnIng dISPlACEMEnT)规记录加载线位移。由于在高温条件下,测试终止时试样的裂纹前缘呈明显弧形,故此给出实测表面处裂纹长度有效值的修正方法。对高温疲劳裂纹扩展问题 ...
刘建中, 胡本润, 陈勃, 陈立杰
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Effects of electron beam welding on the microstructure and impact properties of three reconstituted steels [PDF]
Specimen reconstitution technology is important for the in-service safety of reactor pressure vessels (RPVs) in nuclear power plants. To verify the feasibility of electron beam welding for the restructured specimens, the electron beam welding to ...
DAI Kunjie +8 more
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Anti-Corrosion for Flue Gas Sea-Water De-Sulfurization System of Songyu Power Plant [PDF]
, 2006 介绍了嵩屿电厂4×300 MW燃煤机组烟气海水脱硫的工艺流程;分析了脱硫设备(或构造物)的腐蚀机理;论述了嵩屿电厂采用的防腐措施。The technological process of gas sea-water de-sulfurization for 4×300 MW fossil units is introduced.The mechanism of corrosion of de-sulfurization facility(or structure) is analysed.The ...
陈进生
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Формирование сварного шва при сварке двухслойных «феррито-перлитная+ аустенитная» сталей [PDF]
, 2023 Объектом исследования является трубопровод из двухслойной стали "09Г2С- 12Х18Н10Т" диаметром 530 мм и толщиной стенки 14 мм. Почти все нефти, поступающие на переработку, содержат вещества и соединения, вызывающие коррозию металлических изделий, которая ...
Сюй, Цинфу
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, 1994 通过对紧凑拉伸试样裂纹扩展实验的有限元仿真模拟以及对中心裂纹试样和三点弯曲试样的精细有限元计算和分析;证实了稳态扩展裂纹尖端附近环形区内应力场三参数J-k_2-Q表征的有效性。研究结果进一步表明:在扩展裂纹尖端附近的环形区域内;因试样几何类型的不同;存在着不同类型的双参数主导区。对紧凑拉伸试样和弯曲裂纹试样;在裂关附近环形区内存在着J-k_2主导区;而对中心裂纹试样;在裂尖附近环形区内则存在着J-Q主导区。在一般情况下;应由J-k_2 ...
王自强, 魏悦广
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