硫化氢腐蚀对X80管线钢断裂韧性的影响

王晶, 栾春波

Effect of Hydrogen Sulfide Corrosion on Fracture Toughness of X80 Pipeline Steel

WANG Jing, LUAN Chunbo

表4 硫化氢预腐蚀后的启裂韧度δ0.2BL测试结果

Table 4 Test values of fracture toughness δ0.2BL of corroded X80 pipeline steel

Sample number B / mm W / mm S / mm F / kN g1 ν Rp0.2 / MPa E / GPa a0 / mm Δa / mm Vp / mm z / mm δ / mm 3# 15.10 29.82 120.00 27.88 2.58 0.30 661.00 206.00 14.57 0.25 0.78 2.00 0.26 4# 14.90 29.80 120.00 27.93 2.54 0.30 661.00 206.00 14.54 0.51 1.42 2.00 0.43 5# 15.02 29.72 120.00 29.40 2.54 0.30 661.00 206.00 14.43 0.35 1.13 2.00 0.36 8# 15.11 30.10 120.00 16.46 2.66 0.30 661.00 206.00 15.08 1.18 1.90 2.00 0.52 11# 15.00 30.00 120.00 19.87 3.63 0.30 661.00 206.00 15.90 1.87 2.31 2.00 0.61 12# 15.09 29.92 120.00 16.10 4.43 0.30 661.00 206.00 16.21 2.98 3.03 2.00 0.76