NK-HITEN610U2钢焊接接头力学性能研究

Study on Mechanical Property of NK-HITEN610U2 Welding Joint

对日本产高强度NK-HITEN610U2钢的焊接接头进行了力学性能研究,包括冲击试验、落锤试验、断裂韧性试验、低周应变疲劳试验以及疲劳裂纹扩展速率试验,为国内采用日本产高强度NK-HITEN610U2钢制造球罐及其今后的安全使用提供了相关的技术参数和技术依据。

General mechanical properties of weld joint of high strength NK-HITEN610U2 steel of Japan cle strain obtained were introduced, including impact test, weight-drop test, fracture toughness test, low-cy-cle strain fatigue test and fatigue crack growth rate test. The correlative technique parameter was and gist was provided for spherical tank fabrication, and its safety using NK-HIT-EN610U2 steel in China.