1) corrosion crack
腐蚀裂纹，应力腐蚀裂纹;晶间开裂
2) IGSCC
晶粒间应力腐蚀裂纹
3) intergranular stress corrosion crack
晶间应力腐蚀裂纹
4) intergranular corrosion cracks
晶间腐蚀裂纹
1.
For the intergranular corrosion cracks of gas delivery pipe, the microstructure was observed by optical microscopy, the composition and corrosion product of pipes were analyzed by direct-reading spectrograph and TEM.
针对输送管产生的晶间腐蚀裂纹 ,采用光学显微镜观察其显微组织 ,并用直读光谱仪和透射电子显微镜对材料的成分和腐蚀产物进行了分析 ,找出了产生晶间腐蚀裂纹的原因。
5) stress corrosion crack
应力腐蚀裂纹
1.
It states that experimental study on stress corrosion crack to API high strength pipeline steel pipes by research department of JFE Co.
叙述了日本JFE钢研单位在实验室条件下采用不同防蚀电位、恒定负荷、变动应力、电化学方法等对API高强度管线钢钢管应力腐蚀裂纹的试验研究。
2.
The main corrosion medium is carbon dioxide which concentration increased remarkablely at the service temperature of 100～110℃,and the welding residual stress and working stress overlapping can accelerate the stress corrosion crack.
通过对断口形貌的金相、SEM、XRD检测分析 ,确定了Q2 35、TZ33钢制套筒焊缝处出现的裂纹为应力腐蚀裂纹。
3.
This paper explicates the inherent mechanism of stress corrosion crack and hydrogen induced crack is same ,that belong to the hydrogen induced fracture mechanism, based on the mechanism, influence factor, shape looks, taking place area and time of them.
作者从应力腐蚀裂纹和氢致裂纹的机理、影响因素、形貌、发生区域、发生时间来论证球罐的应力腐蚀裂纹和氢致裂纹的内在机理是一样的,属于氢致开裂机理。
6) stress corrosion cracking
应力腐蚀裂纹
1.
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。
2.
The new process of producing pressure stress by counter welding temperature difference treatment and its first successful application in China in repairing stress corrosion cracking of hydroprocessing reactor were detailed.
文章详细介绍了在国内外首次采用逆焊接温差处理制造压应力新工艺,以及成功修复加氢反应器产生的应力腐蚀裂纹的过程。
补充资料：焊接接头晶间腐蚀
焊接接头晶间腐蚀
welded joint intercryctalline corrosion
honjle」}etou jingj旧n fush{焊接接头晶间腐蚀(welded joint intererys-talline eorrosion)在焊接接头处出现的沿晶粒边界发生的腐蚀现象。外观仍可有金属光泽，但实际上晶粒已失去联系，钢质已变脆。在奥氏体不锈钢部位有焊缝晶间腐蚀、敏化区腐蚀和刀状腐蚀等三种不同部位的晶间腐蚀。关于奥氏体不锈钢的晶间腐蚀机理有多种学说，其中以碳化物(如er23e。或(er、Fe)23e。等)在晶界沉淀现象的“贫铬理论”比较为人们所接受。所以为防止这类晶间腐蚀尽量降低含碳量，使焊缝金属含有一定量的稳定元素(如钦、妮等)以防止或降低晶界Cr23C。的形成。此外，焊缝的组织状态也有影响，单相奥氏体组织的焊缝有利于柱状晶的发达，出现贫铬层后会使腐蚀贯穿于晶粒之间，若焊缝为奥氏体了加高温铁素体占的双相组织，由于树枝状被打破，不能构成集中的腐蚀通道。高铬铁素体也会有晶间腐蚀，但与奥氏体钢不同的是从高温急冷下来即有晶间腐蚀倾向，可通过650一85oC加热、缓冷使铬扩散均匀化来消除贫铬层，防止晶间腐蚀。 (许祖泽)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条