Results 21 to 30 of about 395 (100)
Study on Sective Corrosion Behaviors and Mechanism of Duplex Stainless Steel [PDF]
, 2004 双相不锈钢是固溶组织中含有铁素体相和奥氏体相两种金相结构的不锈钢，具有相当优良的耐蚀性，是广泛应用于苛刻环境的钢种。双相不锈钢由于两相化学成分和晶体结构的不同，导致了物理和化学性质存在差异，在介质中表现出两相腐蚀性的差异，即优选腐蚀。两相中相对脆弱的相往往是优选腐蚀的诱发区，而优选腐蚀的发生、发展可导致材料或结构的危险性腐蚀破坏，因此这种特殊的腐蚀形式对双相不锈钢的实际应用造成重要隐患。研究双相不锈钢的优选腐蚀行为，并探讨其腐蚀机理具有重要的实际意义。 本文主要利用电化学技术结合SEM、EDS ...
付燕
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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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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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, 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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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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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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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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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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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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