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5 δ_Q0.2BL的数值及有效性判定

Table 5 Values of δ_Q0.2BL and validity judgment

Experiment condition	Data distribution requirements	δ_Q0.2BL	δ_max	1.87(R_m/R_p0.2)	$\begin{matrix} {[2 (\frac{dδ}{da})]}_{0.2 BL} \end{matrix}$	Validity judgment
Original	Meet conditions	0.740	0.749	2.170	0.886	Valid
Pre-corroded	Meet conditions	0.365	0.686	2.170	0.451	Valid