高强度钢板止裂性能与常规力学性能的相关性分析

详细信息

Relationship Analysis of Crack Arrest Property and Conventional Mechanical Properties of High Strength Steel

摘要: 统计分析了15组高强度钢板止裂温度CAT与抗拉强度R_m、韧脆转变特征温度ETT₅₀、无塑性转变温度NDT、碳当量Ceq、韧脆转变特性参量k和板厚t的相关性规律。在此基础上建立反映其内在联系的相关性方程:(1)CAT=2.88·NDT-0.002 4·R_m·NDT+0.138·kt²;(2)CAT=388.5·Ceq-0.21·R_m-0.006·lnkt²。
- 止裂温度 /
- 抗拉强度 /
- 零塑性转变温度 /
- 韧脆转变特征温度 /
- 板厚
Abstract: Fifteen troops of crack arrest temperature CAT and tensile strength R_m, nil-ductility transition temperature NDT, ductile-brittle transition temperature ETT₅₀, ductile-brittle transition parameter k and thickness t of high strength plates were analyzed. The relationship formula of CAT and R_m, NDT, Ceq, k and lnkt² was proposed based on the above results:(1) CAT=2.88·NDT-0.002 4·R_m·NDT + 0.138·kt²; (2) CAT=388.5·Ceq-0.21·R_m-0.006·lnkt².
- crack arrest temperature /
- tensile strength /
- nil-ductility transition temperature /
- ductile-brittle transition temperature /
- thickness