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船用低合金高强钢止裂温度相关性研究

宫旭辉 薛钢 高珍鹏 马骞 付安新

宫旭辉, 薛钢, 高珍鹏, 马骞, 付安新. 船用低合金高强钢止裂温度相关性研究[J]. 材料开发与应用, 2021, 36(6): 1-6,35.
引用本文: 宫旭辉, 薛钢, 高珍鹏, 马骞, 付安新. 船用低合金高强钢止裂温度相关性研究[J]. 材料开发与应用, 2021, 36(6): 1-6,35.
GONG Xuhui, XUE Gang, GAO Zhenpeng, MA Qian, FU Anxin. Correlation Analysis on Crack Arrest Temperature of Low Alloy High Strength Hull Steels[J]. Development and Application of Materials, 2021, 36(6): 1-6,35.
Citation: GONG Xuhui, XUE Gang, GAO Zhenpeng, MA Qian, FU Anxin. Correlation Analysis on Crack Arrest Temperature of Low Alloy High Strength Hull Steels[J]. Development and Application of Materials, 2021, 36(6): 1-6,35.

船用低合金高强钢止裂温度相关性研究

基金项目: 

科技部国家重点研发计划(2016YFB0300701),海洋装备用金属材料及其应用国家重点实验室2018年开放课题(SKLMEA-K201805)

详细信息
    作者简介:

    宫旭辉,研究员,博士。E-mail:gongxuhui@725.com.cn

  • 中图分类号: TG314.4

Correlation Analysis on Crack Arrest Temperature of Low Alloy High Strength Hull Steels

  • 摘要: 为研究不同温度场条件下所测止裂温度的相关性,针对4种批号船用低合金高强钢,分别开展等温型双重拉伸试验和梯度温度型(以下简称“梯温型”)双重拉伸试验,测得了等温型止裂温度和梯温型止裂温度。结果表明,在同一主拉伸应力水平下,梯温型止裂温度值均高于等温型止裂温度值,两者差值与主拉伸应力近似呈线性增长关系、与板厚近似呈二次函数关系。从能量角度对等温型和梯温型双重拉伸试验过程进行分析,确定了影响等温型止裂温度和梯温型止裂温度相关性的主要因素为主拉伸应力、无塑性转变温度和板厚,同时初步给出了相关性表达式。4种批号钢板的试验结果表明,所建立的表达式能够较好地表征板厚不大于80 mm的船用低合金高强钢的等温型止裂温度和梯温型止裂温度的相关性。

     

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出版历程
  • 收稿日期:  2021-05-13
  • 刊出日期:  2021-12-25

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