摘要
在运用能量守恒原理分析止裂过程的基础上,通过统计52组低合金钢板试验数据,分析了梯度温度型双重拉伸试验测定的止裂温度和应力、板厚、表面-40℃冲击韧性的相关性规律,建立了止裂温度估算式:Tk=-66.1+0.011 8·σ·t2KV2。
Abstract： Based on the analysis of crack arrest behavior with principle of conservation of energy, the relationship between crack arrest temperature measured by temperature-gradient double tension test and stress, plate thickness and impact toughness meas- ured with sample surface at -40 ℃ was studied with 52 groups of test data of low alloy steel plates. The crack arrest tempera-ture formula was founded as Tk=-66.1＋0.011 8·σ·t2KV2.
出处
《材料开发与应用》
CAS
2016年第2期1-4,共4页
Development and Application of Materials
关键词
双重拉伸试验
止裂温度
估算式
double tension test
crack arrest temperature
formula
