two kinds of heat simulated specimens of fusion line are made that their resistance to h2s stress corrosion is proved to be the minimum.
作了两种熔合线部位的热模拟试件,证明其抗h_2s应力腐蚀性能最差。
the microstructure of weld joint consists of austenitic matrix, columnar crystal in the form of v shape close to the fusion line and fine equiaxed austenite in the centre.
焊缝组织主要为奥氏体基体,在靠近熔合线区域为呈v形排列的柱状晶,中心区域为细小的奥氏体等轴晶;
these conclusions are important theory to guide the study of the formation mechanism of cold cracking in the two sides of fusion line of dissimilar steel welded joint.
所得结论、对研究异种钢接头熔合线两侧的冷裂纹的形成机理有其理论指导作用。
the tensile test fracture area locates on weld seam, and the hardness near haz fusion line is the highest, away from the fusion line, the hardness declines and reach the parent metal hardness.