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原文传递 Niobium in Heavy Plate Offshore Material Alloy Designs, Trends, Process Metallurgy and Quality

题名：	Niobium in Heavy Plate Offshore Material Alloy Designs, Trends, Process Metallurgy and Quality
正文语种：	中文
作者：	Steven G. Jansto
作者单位：	BMM North merica, Inc.1000 Old Pond Road, Bridgeville, P 15017, US
关键词：	Fatigue Fracture Toughness Niobium
摘要：	Offshore structural steel design and material requirements continue to present increasing challenges for the steelmaker and fabricators.Niobium-bearing steels currently play a key role in meeting these objectives.New Nb-technological advancements in the offshore sector are presented and will contribute to meeting future design challenges.Quenched and tempered Nb-bearing plate steels with increased yield strength levels are currently used in offshore platform fabrication.Mechanical properties as well as fracture mechanics characteristics and extensive welding procedure qualifications are required.These high strength plate steels offer the opportunity to manufacture complex heavy-lift and fatigue-critical components for larger offshore structures without increasing the weight of the platforms.Deep-water structural steel platforms which are exposed to severe environmental loads offer further opportunities for Nb-bearing steels.Such critical components in the offshore structures require the steelmaker to adopt excellent steelmaking,slab casting and hot rolling performance.
会议日期：	201312
会议举办地点：	北京
会议名称：	2013海洋平台用钢国际研讨会
出版日期：	2013-11-30
母体文献：	2013海洋平台用钢国际研讨会论文集