欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用盲孔法测量了电子束预热与焊接复合加工300M超高强度钢板的残余应力分布。结果表明，垂直于焊缝方向的纵向残余应力以拉应力为主，横向残余应力以压应力为主，焊缝中心的最大纵向和横向残余应力分别为34．3和9．2MPa；最大残余拉应力峰值出现在母材区，其应力值约为208．3MPa，远低于母材屈服强度。沿焊接方向残余应力变化不大，可近似认为其分布基本稳定。
英文摘要：
Residual stresses of the steel 300M ultra high strength steel plate with electron beam welding and preheat treatment combined processing were measured by blind-hole method. The results show that the longitudinal residual stresses are mainly tensile stresses, the transverse stresses are mainly compressive stress in vertical direction of the weld. The biggest longitudinal and transverse residual stresses are about 34. 3 MPa and 9.2 MPa in the weld. The peak of residual tensile stress is in the base metal and it is 208.3 MPa which is less than the yield strength. Along the welding direction, the stresses variation are very low and the distribution of the residual tensile stresses are very stabilization.
同期刊论文项目
同项目期刊论文
Fracture assessment for electron beam welded damage tolerant Ti-6Al-4V alloy using the FITNET proced
Effect of electron beam welding on the microstructures and mechanical properties of thick TC4-DT all
Study on the J-integral and failure assessment line of electron beam welded thick TC4-DT alloy joint
Microstructures and fatigue properties of electron beam welds with beam oscillation for heavy sectio
Investigation of microstructure and mechanical performance of joints by hybrid electron beam welding
Investigation on the effect of electron beam weld shape on fatigue performances of thickness titaniu
期刊信息
位置：