• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ASME(American Society of Mechanical Engineers)/JSME Pressure Vessels and Piping Conference: Fitness for Service, Life Extension, Remediation, Repair, and Erosion, Corrosion Issues for Pressure Vessels and Components; 20040725-20040729; San Diego,CA; US >INVESTIGATION OF DUPLEX STAINLESS STEELS FOR PIPELINE REPAIRS
【24h】

INVESTIGATION OF DUPLEX STAINLESS STEELS FOR PIPELINE REPAIRS

机译：用于管道维修的双相不锈钢的研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Hundreds of miles of production pipelines make up the network at the Prudhoe Bay oilfield in Northern Alaska, part of the vast petroleum reserves which feed one million barrels of crude oil per day to the 800-mile Trans Alaska Pipeline System. Part of the inevitable layout on a land-based pipeline of this size is the need to cross roads and undergo similar directional changes. When the pipeline was constructed this hurdle was overcome by burying the pipe for short sections. At present the system has hundreds of buried road crossings. One of the continued high-cost maintenance issues with the pipeline is the corrosion that occurs at the elbows used for direction and elevation changes. The pipelines are constructed primarily out of high tensile strength carbon steels. While carbon steel is sufficient for most of the pipeline, the elbows present new challenges such as the cumulative effects of erosion and pitting corrosion. One proposed solution was to replace the carbon steel with duplex stainless steel in these areas of higher susceptibility. Duplex stainless steel has a high general corrosion resistance and better velocity-assisted corrosion resistance than carbon steel. Coupled with its recent decrease in cost, this solution makes the use of duplex stainless steel a potential candidate for the above application, reducing costs of the repair and inspection for the entire pipeline. Technical issues which are significant in joining carbon steel to duplex stainless steel include the proper selection of the weld metal alloy, weld cooling rates, and corrosion of the carbon steel due to the joining of dissimilar alloys. This paper addresses these issues of welding and corrosion that were investigated for the use of duplex pipe and components in the carbon steel system.
机译：数百英里的生产管道组成了阿拉斯加北部Prudhoe Bay油田的网络，这是庞大的石油储备的一部分，每天向100英里的800英里的阿拉斯加输油管道系统输送原油。在这种规模的陆上管道上不可避免的布局的一部分是需要过马路并经历类似的方向变化。在建造管道时，通过将管道埋入短段即可克服这一障碍。目前，该系统有数百个地下道路交叉口。管道持续的高成本维护问题之一是用于方向和高度变化的肘部发生腐蚀。管道主要由高抗拉强度碳钢制成。尽管碳钢足以满足大多数管道的需要，但弯头却面临着新的挑战，例如腐蚀和点蚀的累积效应。一种建议的解决方案是在这些易感性较高的区域中用双相不锈钢代替碳钢。与碳钢相比，双相不锈钢具有较高的一般耐腐蚀性和更好的速度辅助耐腐蚀性。加上最近的成本降低，该解决方案使双相不锈钢成为上述应用的潜在选择，从而降低了整个管道的维修和检查成本。在将碳钢连接到双相不锈钢时，重要的技术问题包括焊接金属合金的正确选择，焊接冷却速率以及由于异种合金的连接而导致的碳钢腐蚀。本文讨论了焊接和腐蚀的这些问题，这些问题已在碳钢系统中使用双相管和组件进行了研究。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号