【作者】 白杰； 梁健； 张亚军； 张学明；

【Author】 BAIJie, LIANG Jian, ZHANG Yajun, ZHANG XuemingLuoyang Ship Material Research Institute, Luoyang 471039, China

【机构】 洛阳船舶材料研究所；

【摘要】 通过对非标准CT紧凑拉伸试样在循环水环境下的疲劳裂纹扩展速率的试验研究,确定了试样的具体形状与尺寸,设计制作了循环水腐蚀装置和相关夹具,编制了数据处理程序,获得ZG0Cr13Ni5Mo基体及焊接接头的da/dN与ΔK的关系式,分析比较了它们的裂纹扩展特性,为优化焊接工艺和该材料的安全使用提供了依据。更多还原

【Abstract】 The fatigue crack propagation rate of substandard compact tension specimens (CT) in cycle -water corrosion enviroment. The shape and size of the samples were determined. A set of corrosion device with relevant clamps was designed. The data processing program was compiled. The relationship of da/dN to ΔK of ZGOCr13Ni5Mo and its welded joint was acquired. At the same time, the properties of the crack growth were compared and analyzed, which provide an evidence for optimizing weld technology and safe use of this material.更多还原