周成,严玲,张鹏,朱隆浩

• 1:海洋装备用金属材料及其应用国家重点实验室
• 2:鞍钢集团钢铁研究院

摘要(Abstract)：

借助SEM,EBSD等显微组织分析手段及力学性能测试,研究了集装箱船用EH47级别高止裂韧性钢的显微组织与力学性能的关系。实验结果表明,针状铁素体+贝氏体的组织可满足集装箱船用EH47级别高止裂韧性钢对止裂韧性性能的严格要求。晶粒尺寸细小的针状铁素体+贝氏体相互配合具有较高的强度、止裂韧性性能;增大针状铁素体晶粒尺寸或引入多边形铁素体过多则会降低材料强度;而贝氏体体积分数过多、晶粒尺寸过大时,材料塑性和止裂韧性性能显著降低。

关键词(KeyWords)： 高强高韧;止裂韧性;针状铁素体;粒状贝氏体;集装箱船用止裂钢

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 周成,严玲,张鹏,朱隆浩

DOI: 10.13289/j.issn.1009-6264.2017-0237

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