API 5L X70冒口内包覆镍基高温合金625 PTA焊接工艺的开发与评价

IF 0.5 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
R. G. D. Silva, R. N. Silva, Julianni Dornelles, F. Silva
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引用次数: 3

摘要

石油和天然气勘探是巴西经济中最具战略性的工业部门之一。深水储量的发现给在腐蚀性极强的环境中使用材料的设备增加了更多的困难。为了提高设备的使用寿命,从而降低维护成本,防止环境灾难,通过焊接工艺使用CRA包层是很常见的,其中镍高温合金涂层通过PTA焊接工艺脱颖而出。在这种情况下,由于应用程序施加的操作和冶金要求,立管内部包层的操作变得极其复杂。本文研究了625镍基高温合金立管PTA焊接内包覆工艺。通过板上覆层试验,获得了对立管内覆层试验性能满意的初步参数。从焊接参数的适应性出发,对不同编织幅度下的三种不同工艺进行了对比分析。通过渗透液和射线照相进行视觉分析和检查,确认所有程序的焊接质量。然而,为了证明所开发的工艺的冶金质量,通过EDX对化学成分进行了分析,取得了令人满意的结果。最后,对该工艺进行了财务比较,比较了粉末和气体的消耗,以及内包覆所需的时间。关键词:涂料;CRA;镍合金;管道;等离子体转移电弧。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development and Evaluation of the Internal Cladding Process of API 5L X70 Risers with Nickel-based superalloy 625 via PTA Welding
The Oil and gas exploration is one of the most strategic industrial sectors in the Brazilian economy. The discovery of deep water reserves adds more difficulty to the already problematic use of materials in equipment in extremely corrosive environments. With the objective of increasing the service life of the equipment, and consequently reducing the cost of maintenance and preventing against environmental catastrophes, it is common to use CRA claddings via welding processes, in which the nickel superalloy coatings stand out via the PTA welding process. In this context, the operation of internal cladding of risers becomes extremely complex due to the operational and metallurgical requirements imposed by the application. The present work aims at the development and empirical evaluation of the internal cladding procedure of risers with Nickelbased superalloy 625 via PTA welding process. From tests of cladding on plate, satisfactory preliminary parameters were reached for the performance of internal cladding tests on risers. From the adaptation of the welding parameters, comparative analyzes of three different procedures were carried out, with different weaving amplitude. Visual analysis and inspections were carried out via penetrating liquid and radiography, confirming the welding quality of all procedures performed. Still, proving the metallurgical quality of the developed procedures, analysis of chemical composition was carried out via EDX, presenting satisfactory results. Finally, a financial comparison of the process was elaborated, showing comparatively the consumption of powder and gas, and the time needed for internal cladding. Keywords: Coating; CRA; Nickel Alloy; Pipeline; Plasma Transferred Arc.
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来源期刊
Materia-rio De Janeiro
Materia-rio De Janeiro MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
1.00
自引率
25.00%
发文量
51
审稿时长
6 weeks
期刊介绍: All the articles are submitted to a careful peer-reviewing evaluation process by the journal''s Editorial Board. The Editorial Board, reviewers and authors make use of a web based proprietary automated tool to deal with the reviewing procedures.the Revista Matéria''s article reviewing restricted access system - SEER. Authors are not informed about the identity of the reviewers.
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