冲击能量对ESSO试验结果的影响  

Effect of Impact Energy on ESSO Test Results

作　　者：宫旭辉[1] 薛钢[1] 李冲 高珍鹏 GONG Xuhui;XUE Gang;LI Chong;GAO Zhenpeng(Luoyang Ship Material Research Institute,Luoyang 471023,China)

机构地区：[1]中国船舶重工集团公司第七二五研究所

出　　处：《材料开发与应用》2019年第4期1-3,8,共4页Development and Application of Materials

基　　金：科技部国家重点研发计划(2016YFB0300701)

摘　　要：对90mm厚EH47船用钢板进行了不同冲击能量下的梯度温度型ESSO试验以分析冲击能量对试验结果的影响.结果表明,采用下限冲击能量测得的-10℃止裂韧性值与双重拉伸试验所测值基本一致,但根据WES:2815-2014规范确定的上限冲击能量测得的止裂韧性值明显低于前两者测得的结果,建议后续在ESSO试验中针对90mm厚钢板选用冲击能量下限值进行试验.Temperature-gradient ESSO tests with different impact energies were carried out on EH47 hull steel with thickness of 90mm to evaluate the effect of impact energy. Results indicate that -10℃ crack arrest toughness under the minimum impact energy is consistent with that obtained by double tension test, while - 10℃ crack arrest toughness under maximum impact e n ergy according to WES :2815 - 2014 is obviously lower than the former two results. It is suggested that the minimum impact energy should be chosen in ESSO test.

关 键 词：冲击能量 ESSO 止裂韧性 

分 类 号：TB302[一般工业技术—材料科学与工程]