Welding Solutions Advancement of High-Strength Pipeline Steels

高强度管线钢焊接解决方案的改进

• 批准号: RGPIN-2017-04368
• 负责人: Nasiri, Ali
• 金额: $ 1.6万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638160
• 关键词: Welding; Solutions; Advancement; Strength; Pipeline

During last two decades, continuously increasing energy delivery rates and the expansion of oil and gas exploration to cold and harsh regions have demanded advancements of the assigned materials and employment of higher strength pipeline steels, such as grade X100 and X120. However, there are significant challenges with conventional arc welding of these high-strength steels, such as heat affected zone (HAZ) softening, cold cracking (Hydrogen-assisted cracking (HAC)), and lack of information on their corrosion behavior in harsh arctic environments.

在过去的二十年中，不断提高能源输送率，并将石油和天然气勘探扩展到寒冷和苛刻的区域，要求分配的材料和更高强度管道钢的使用，例如X100和X120级。但是，这些高强度钢的常规电弧焊接面临重大挑战，例如热影响区（HAZ）软化，冷裂（HAC裂解（HAC））以及在恶劣的北极环境中缺乏有关其腐蚀行为的信息。