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高强韧FH460级船板钢组织性能研究 被引量:5

Study of the Microstructure and Property of FH460 Grade Ship Steel Plate with High Strength and Toughness
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摘要 船板钢FH460具有高强韧性是未来船板及海洋平台用钢的重要组成部分。本项目组设计开发了低碳Mn-Nb-Cr-Mo系低合金高强韧FH460级船板钢,实验室研究了控轧控冷工艺有关参数对产品组织性能的影响。结果表明:通过合理的控轧控冷工艺得到针状铁素体和准多边形铁素体的复合组织,这种复合组织具有优良的综合力学性能,可满足F460级船板钢高强韧综合性能要求。分析认为:这归因于高密度位错的细小针状铁素体和准多边形铁素体的复合组织之间的界面为大角晶界,能有效抑制裂纹扩展的综合机制作用。
出处 《金属世界》 2010年第5期40-43,共4页 Metal World
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