船体钢止裂性能表征参量止裂温度和止裂韧性的对比分析  

A Comparative Analysis on Crack Arrest Temperature and Crack Arrest Toughness of Ship Steels

作　　者：薛钢[1] 宫旭辉[1] 徐科[1] 王任甫[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2014年第1期9-13,共5页Development and Application of Materials

摘　　要：基于AH36、EH36和FH500三种船体钢的梯度温度场型双重拉伸试验结果,对止裂温度和止裂韧性分别作为止裂性能表征参量的特点进行了分析。结果表明,与止裂韧性相比,止裂温度测试稳定性好、工程适用性好,更宜作为船体钢止裂性能的工程应用表征参量。A comparative analysis was conducted on crack arrest temperature and crack arrest toughness based on temperaturegradient double tension test results of AH36,EH36 and FH500 ship steels. Analysis results indicate that comparing with crack arrest toughness,crack arrest temperature shows good testing stability and engineering feasibility. It is suggested that crack arrest temperature may be used as a parameter to characterize the steels of ship crack arrest property.

关 键 词：止裂温度 止裂韧性 双重拉伸试验 

分 类 号：TG314.4[金属学及工艺—金属压力加工]