Stress corrosion cracking problem of concrete beams with crack is studied in this paper.
本文研究了带裂纹混凝土梁的应力腐蚀断裂问题。
The results show that the failure of the tube is due to stress corrosion crack propagation.
结果表明,该进气管断裂系由于应力腐蚀裂纹失稳扩展所造成。
The result indicated that the failure cause of the stainless steel spiral pipe is the stress corrosion crack induced by Cl- ion.
结果表明,不锈钢盘管失效的原因是氯离子引起的应力腐蚀开裂所致。
The effect of quenching temperatures on the rate of stress corrosion crack propagation of 4330M steel in distilled water has been investigated.
本文研究了淬火温度对4330M钢在蒸馏水中的应力腐蚀裂纹扩展速率的影响。
This article introduced briefly the analysed method of stress corrosion crack, main factors which caused stress corrosion crack and its preventing method.
简要介绍了应力腐蚀开裂的分析方法、引起压力容器应力腐蚀开裂的主要因素及防止措施。
This paper mainly introduces the stainless steel corrosion, especially the serious accidents caused by the austenitic stainless steel stress corrosion crack.
论文主要介绍了不锈钢的腐蚀尤其对奥氏体不锈钢的应力腐蚀开裂引起的严重事故。
The compared test proved that there are more probability of the stress corrosion crack within the jointure region and the clamp position in the welding joint.
对比试验显示,在焊接区域和焊接夹具的位置,应力腐蚀裂纹更有可能出现。
In the long pipeline, because the end surfaces of the welded pipes have the geometrical errors which induce the butt weld defects, the stress corrosion crack will occur.
在长输管道生产中,由于焊管管端几何形状误差而引起的对接焊缝缺陷是造成应力腐蚀断裂的主要原因之一。
The emergence of the corrosion crack and the further expanding was protected by the means of smoothing the operation condition, controlling the technology indexes, isolating the corrosion medium.
稳定操作条件,控制各工艺指标,隔离腐蚀介质等可防止腐蚀裂纹的产生或进一步扩展。
Residual stress of longitudinal submerged arc welded pipe after welding is the major reason caused welded pipe stress corrosion crack, its stress level directly decide pipeline safety in service.
直缝埋弧焊管焊后残余应力是导致焊管应力腐蚀裂纹产生的主要原因。
Corrosion pitting also can lead to fatigue crack initiation depending on the component, the location of pitting, and cyclic loading conditions.
腐蚀斑点还会因不同的部件、斑点的位置和循环载荷状况,导致一些不同的疲劳裂纹。
Acid and alkali resistance, corrosion resistance, no crack, no loss, high stability, no aging problems, and the building wall with life.
耐酸碱、耐腐蚀、不开裂、不脱落、稳定性高,不存在老化问题,与建筑墙体同寿命。
The stress corrosion mechanism in mixed solutions was studied based on the metallographic observations of scanning fracture shapes and crack extension direction.
根据扫描断口形貌和裂纹扩展途径的金相观察,还探讨了在混合溶液中的应力腐蚀机制。
Removing visible surface corrosion before pitting begins (such as during a C-check) helps prevent conditions that can lead to crack initiation.
在出现斑点之前去除可见的表面腐蚀(诸如c -检)有助于预防发生裂纹。
This method can apply to the detection of both crack and corrosion.
该方法同时适用于对裂纹和腐蚀缺陷的检测。
The result showed that the direct reason of reboiler invalidation was the intercrystalline stress corrosion and crack caused by micro-chloride in the medium.
结果表明,介质中所含的微量氯离子引起的晶间型应力腐蚀开裂导致再沸器失效。
This paper analyses the mechanism of corrosion of steel bars, interprets the theory of concrete structure crack control and poses measures of narrowing the cracks.
分析了混凝土结构的受力钢筋腐蚀机理,阐述了钢筋混凝土结构的裂缝控制理论,以及减小钢筋混凝土结构裂缝宽度的措施。
The weal-correlation between acceleration corrosion factor and stress level, load spectrum and crack size is gained base on the generality of C—T curves.
并从C—T曲线的通用性出发,说明加速腐蚀因子与应力水平、载荷谱以及裂纹尺寸无关。
Mechanism of damage of clay pot for utensil glass melting, such as softening deformation at high temperature, corrosion by molten glass, crack by thermal shock, etc was studied.
对熔化器皿玻璃等的粘土质坩埚使用中的高温软化变形、玻璃液侵蚀、热震开裂等损毁机制进行了分析研究。
The result show that the size of equivalent initial surface crack is less than 19.7to 22.5 percent of surface corrosion pit size which have the same life.
结果发现,把腐蚀坑等效为具有相同寿命的表面裂纹时,等效表面裂纹的尺寸比对应腐蚀的尺寸小19.7% - 22.5%。
The theoretical analysis indicated that the crack closure effect was mainly responsible for the change of crack growth retardation in corrosion fatigue.
分析表明,塑性诱发裂纹闭合在腐蚀条件下的变化是造成超载后裂纹扩展规律变化的主要原因之一。
The chemical compositions, mechanical properties, solidification crack risistance and intergranular corrosion risistance of HT-105 electrode for welding of 690 alloy are introduced in this paper.
介绍了焊接690合金焊条HT-105的化学成分、力学性能、抗热裂性能和抗晶间腐蚀性能。
Iron and steel parts with cracks are susceptible to corrosion in the site of cracks during electroplating process. Requisite options and preventive measures for crack corrosion were introduced.
带缝隙钢铁件在电镀与涂装过程中易发生缝隙腐蚀,介绍了缝隙腐蚀的产生条件及常用的预防措施。
As the present, the main reservoir space is the crack because of the tectonism and the hole or corrosion hole what growth along these crack.
现在主要的储集空间为沉积后的构造作用形成的裂缝以及沿着这些裂缝发育的溶蚀孔、洞、缝。
Due to dense structure, high tensile strength, excellent wear-ability, anti-crack and corrosion resistance against acid and alkali, it can be used as integral anti-corrosion coat and block coat.
由于其结构致密,具有较高的抗拉强度且耐磨、抗裂、抗酸碱腐蚀性能优异,宜用于防腐蚀整体面层和块材面层的铺砌材料。
The Zinc and Aluminum anode protector can prevent the Cr-Mo steel from corrosion. However, it has the obvious effect of accelerating the crack propagation.
采用锌阳极和铝阳极的防止腐蚀方法虽能防止铬钼钢腐蚀,但对其裂纹的扩展起明显的加速作用。
For fracture rock, the fracture stress will be reduced and the crack length will increase under the chemical corrosion.
对于裂隙岩体来说,化学溶液的腐蚀则主要体现在断裂应力的减小和裂隙的增大。
Burning underground will change the surface of microstructure of BHA, and accelerate corrosion and fatigue crack initiation and propagation;
③井下发生燃爆,会改变下部钻具表面的金相组织,加速了腐蚀和疲劳裂纹萌生、扩展;
The mechanical property of N80 steel has increased obviously after adding corrosion inhibitor, where the ductility of N80 steel increased, and crack fissure of fracture surface decrease.
添加缓蚀剂后使N80试样的韧性有明显的增加,断口裂纹缝隙明显减小,力学性能有了明显的提高。
The mechanical property of N80 steel has increased obviously after adding corrosion inhibitor, where the ductility of N80 steel increased, and crack fissure of fracture surface decrease.
添加缓蚀剂后使N80试样的韧性有明显的增加,断口裂纹缝隙明显减小,力学性能有了明显的提高。
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