نتایج جستجو برای: x60 pipeline steel
تعداد نتایج: 110314 فیلتر نتایج به سال:
Oil and Gas offshore pipelines, often pass through large geographical areas, from the supply point to the end-user, crossing seismic-active areas. For unburied pipelines, both seismic ground wave and permanent ground deformation can cause severe damage to pipelines, depending on the pipeline geometry and connected structures. Due to the largely non-linear nature of the problem, a finite element...
فرآیند نورد تجمعی (accumulative roll bonding (arb)) یکی از رایج ترین روش ها برای تولید مواد ورقه ای فوق ریزدانه شده می باشد. این روش شامل چرخه های مختلفی از نورد، برش و پشته سازی است و تا مرز امکان می تواند تکرار شود. در این تحقیق، کامپوزیت چندلایه al/steel با استفاده از ورق های 1100al- و 12st- به روش arb و تا سه چرخه تولید شد. میکروساختار و خواص مکانیکی کامپوزیت چندلایه al/steel در چرخه های مخ...
Composite materials are widely recognized as a resource for repairing damaged pipelines. The fibers in conventional composite repair systems typically incorporate E-glass and carbon materials. To provide greater levels of reinforcement a system was developed that incorporates steel half shells and an E-glass composite repair system. In comparison with other competing composite technologies, the...
A Blast furnace is an investment in the future. It is necessary that there is the proper dimensioning of all the equipment, systems and components as well as incorporation of technologies which assure the desired production and quality so that improved performance of the blast furnace can be achieved. Gas is one of the major resources of nature. Gas distribution across any part is processed by ...
The effect of heat input of submerged arc welding process on the corrosion bahavior of weld metal of API X42 gas pipeline steel weld joint was investigated. For this purpose, 6 annealed sheets of 15mm thickness were prepared from the X42 microalloyed steel. Submerged arc welding process with varying heat input of 37.8, 18.9 and 12.6 kJ/mm was used for joint welding. Then potentiodynamic polariz...
As existing infrastructure systems are aged and deteriorated rapidly, state agencies started searching for more advanced ways to maintain their valuable assets to the acceptable level. One of them is the application of digital image processing. Recently, in the civil engineering domain, digital image processing methods have been developed to the areas of pavement conditions, underground pipelin...
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