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stress corrosion cracking是什么意思,stress corrosion cracking的意思翻译、用法、同义词、例句

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常用词典

  • [力] 应力腐蚀裂痕

  • 例句

  • The role of hydrogen embrittlement in stress corrosion cracking has also been discussed.

    文中还对氢脆在应力腐蚀开裂中的作用进行了讨论。

  • Through the discussion on the mechanism and effect factors of the stress corrosion cracking by sulfides, this paper expounds its harmfulness and proposes some measures to control it.

    本文通过对硫化物应力腐蚀开裂的机理和影响因素的讨论,说明其危害性并提出了控制方法。

  • It has been proved that these cracks are caused by sulfide stress corrosion cracking(SSCC) through failure analysis and service environment survey.

    通过失效分析和管道服役环境调查,证明开裂原因是管道服役期间发生硫化物应力腐蚀开裂(SSCC)。

  • Results show that both high temperature quenching and step quenching can apparently increase the stress corrosion cracking resistance K_(ISCC).

    结果表明,高温淬火和分级淬火可使应力腐蚀断裂抚力K_(ISCC)值得到明显提高。

  • The results show that the early failure of the cooling pipe was caused by the stress corrosion cracking in the components.

    结果表明,冷却水管发生早期失效是由于构件发生应力腐蚀开裂所致。

  • In this paper, we raise really available measures through the investigation, analysis, test and research about the stress corrosion cracking of pressure vessel for ammonia refrigerating equipments.

    通过对氨制冷压力容器应力腐蚀开裂进行调查、分析、试验和研究,提出切实可行的对策措施。

  • The corrosion behavior of 2D12 alloy was evaluated including intergranular corrosion, exfoliation and stress corrosion cracking.

    对不同规格2D12铝合金进行晶间腐蚀、剥蚀和应力腐蚀性能测定。

  • The examination and analysis reveal that the cracking of the plates is the result of stress corrosion cracking (SCC) caused by polythionic acid.

    通过对隔板的检查和分析,判断隔板断裂属于连多硫酸引起的应力腐蚀开裂。

  • Using the NACE standard bent-beam test, the behavior of sulfide stress corrosion cracking(SSCC) of different microstructures for X70 grade pipeline steel was investigated.

    采用三点弯曲法研究了不同组织类型的X70级管线钢的硫化物应力腐蚀开裂(S SCC)行为。

  • Accidents of liquid ammonia equipment used in petrochemical industry happen mostly due to stress corrosion cracking.

    石油化工用液氨设备事故多数源自液氨应力腐蚀开裂。

  • Crack and shelling of coatings on underground pipeline is one of the main reasons for pitting corrosion and stress corrosion cracking of the pipeline .

    埋地管道的涂覆层因损伤而开裂起翘,是引发其点蚀穿孔和应力腐蚀断裂的主要原因之一。

  • It is found that there are solidification cracking within argon arch welding joint between heat exchange pipe and pipe plate and stress corrosion cracking on its surface.

    对某台加热器发生泄漏的部位进行了金相、扫描电镜检查,检查出换热管与管板的氩弧焊缝内部存在结晶裂纹且表面存在应力腐蚀裂纹。

  • Various mechanisms of hydrogen-induced cracking and stress corrosion cracking have been reviewed.

    本文对各种氢致开裂和应力腐蚀机理进行了评述。

  • The effect of high-temperature pre-precipitation on the microstructure, age hardening and stress corrosion cracking of 7A52 alloy has been investigated.

    研究了高温预析出对7A52合金组织、时效硬化和应力腐蚀断裂的影响。

  • It was concluded that the Cl ion in the oil glue resulted in stress corrosion cracking of the pure copper tube.

    结果表明,紫铜管渗漏系腐蚀引发裂纹所致,而涂在铜管表面的油胶中的氯离子是引起紫铜管应力腐蚀开裂的主要因素。

  • There are some factors which influence the characteristics of initiation and propagation of stress corrosion cracking and corrosion fatigue cracking in high-strength steel in a watery environment.

    影响高强度钢在水介质中的应力腐蚀和腐蚀疲劳裂缝萌生和扩展特性的因素甚多。

  • Brittle fracture is a stress corrosion cracking phenomenon which occurs in high voltage composite insulators. Previous stu***s all focused on the source of the corrosion medium, e. g. the acid.

    脆断是高电压复合绝缘子发生的应力腐蚀断裂现象,国内外的研究基本集中在“腐蚀”介质酸的来源上。

  • The discrepancies of stress corrosion cracking susceptibility between different types of steel, base matal and welds are analyzed.

    材料因素方面主要分析了三种不同种类的钢以及同一钢种母材和焊缝的应力腐蚀敏感性的差异。

  • The stress corrosion cracking(SCC) of carbon steels in aqueous alkali was stu***d by electrochemical technique, stress corrosion test under constant load and repassivation test.

    本工作通过电化学,恒载荷应力腐蚀和再钝化试验,对碳钢在碱溶液中的应力腐蚀破裂进行了研究。

  • A kind of testing machine used to study stress corrosion cracking of materials in natural environment and special environment was introduced, such as toxic atmosphere and corrosion medium.

    介绍了一种可以用于研究材料在自然环境及特定环境(如有毒有害气氛、各种腐蚀介质等)下应力腐蚀性能的便携式拉伸应力腐蚀试验装置。

  • Stress corrosion cracking problem of concrete beams with crack is stu***d in this paper.

    本文研究了带裂纹混凝土梁的应力腐蚀断裂问题。

  • Stress corrosion cracking of an X60 pipeline steel in soil containing water has been investigated using slow strain rate test.

    用光滑试样慢应变速率拉伸法研究了X60管线钢在含水土壤中的应力腐蚀。

  • The rupture reasons of tube joint weld of the stainless steel pressure meter are analyzed. It is characteristic of stress corrosion cracking and inter granular fracture.

    分析了不锈钢压力表管接头焊缝开裂的原因,认为此种开裂具有应力腐蚀开裂、沿晶断裂特征。

  • Pitting corrosion and crevice corrosion in catalyst deposit zone and corrosion deposit zone can also induce stress corrosion cracking.

    催化剂沉积区和腐蚀产物沉积区产生的点蚀和缝隙腐蚀会诱发应力腐蚀开裂的产生。

  • 专业解析

    应力腐蚀开裂(Stress Corrosion Cracking, SCC)是一种材料在拉伸应力和特定腐蚀环境共同作用下发生的脆性断裂现象,属于环境敏感断裂的典型形式。其核心特征是裂纹在远低于材料屈服强度的应力水平下扩展,且仅在特定介质组合中发生。

    发生条件与机理

    SCC需同时满足三个必要条件:①材料本身对应力腐蚀敏感(如奥氏体不锈钢、铝合金);②存在临界水平的拉应力(包括残余应力或外加应力);③特定腐蚀介质(如氯离子对不锈钢、氨对铜合金)。其机理涉及电化学腐蚀与机械作用的协同效应,裂纹尖端优先发生阳极溶解,而裂纹两侧受保护,形成自催化加速过程。

    典型实例

    1. 核电站管道:304不锈钢在含氧高温水中可能发生SCC,美国NACE标准RP0170对此有详细防护规范
    2. 航空结构:7075铝合金在潮湿大气中易出现晶间型SCC,ASM金属手册第13卷记录了相关失效案例
    3. 石油管线:X70钢在含H₂S的酸性环境中可能发生硫化物应力腐蚀开裂,API 939-C标准专门针对此类问题提出解决方案。

    防护措施

    根据《腐蚀工程基础》(Fontana M.G.著)提出的方法论,可通过材料改性(如采用双相不锈钢)、降低残余应力(热处理工艺优化)或环境控制(添加缓蚀剂)三重途径进行防护。国际标准化组织ISO 7539系列标准提供了系统的SCC测试方法。

    网络扩展资料

    Stress Corrosion Cracking(应力腐蚀开裂,简称SCC) 是指金属材料在拉应力和特定腐蚀环境共同作用下产生的脆性裂纹现象。这种现象通常发生在高强度或高应力环境中,如桥梁、航空航天器、核电站等工程领域。

    关键特点:

    1. 必要条件
      需同时满足以下条件:

      • 拉应力:包括外部载荷或材料内部残余应力;
      • 腐蚀介质:特定环境(如含氯离子、碱性溶液等);
      • 材料敏感性:某些金属(如不锈钢、黄铜)更易发生。
    2. 典型表现
      裂纹通常呈分支状或网状扩展,无明显塑性变形,易导致突发性结构失效。

    3. 材料影响
      例如硅青铜因抗应力腐蚀性能优于普通黄铜,常用于高压阀门的阀杆材料。

    预防措施:

    如需进一步了解具体案例或测试方法,可参考相关工程文献或行业标准。

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