公开(公告)号：WO2013055652A1

公开(公告)日：2013-04-18

申请号：PCT/US2012/059292

申请日：2012-10-09

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

Inventor： LING, Shiun ,  FEATHER, James, E. ,  FITZGERALD, Brian, J.

IPC: C21D1/18 ,  C21D1/25 ,  C21D9/08 ,  C22C38/04 ,  C22C38/24 ,  B29C63/00 ,  C09D5/00 ,  F28F19/00

CPC classification number: C21D1/18 ,  C21D1/25 ,  C21D9/08 ,  C21D9/085 ,  C21D2221/00 ,  C22C38/04 ,  C22C38/24 ,  Y10T428/249921 ,  Y10T428/249969 ,  Y10T428/24999

Abstract: A method for inhibiting corrosion under insulation (CUl) on the exterior of a structure, e.g., pipelines, piping, vessels and tanks, is provided. The method involves providing a stnicture that is at least partially formed from a corrosion resistant carbon steel (CRCS) composition. The CRCS composition includes corrosion resistance alloying additions in the amount of 0.1 weight percent to 9 weight percent. At least one alloying addition has a low free energy of formation for its oxide and/or hydroxide, e.g., vanadium and/or titanium. A corrosion inhibited structure that includes a structure at least partially formed from a corrosion resistant carbon steel (CRCS) composition, and insulation positioned around at least a portion of the structure.

Abstract translation: 提供了一种用于抑制例如管道，管道，容器和罐等结构外部的绝缘（CU1）腐蚀的方法。 该方法包括提供至少部分地由耐腐蚀碳钢（CRCS）组合物形成的图案。 CRCS组合物包括0.1重量％至9重量％的耐腐蚀合金添加剂。 至少一种合金添加剂对于其氧化物和/或氢氧化物例如钒和/或钛具有低的自由形成能。 一种腐蚀抑制结构，其包括至少部分由耐腐蚀碳钢（CRCS）组合物形成的结构，以及围绕该结构的至少一部分定位的绝缘体。