Study on Dynamic Erosion Behavior of 20# Steel of Natural Gas Gathering Pipeline

Table 2

Material parameters.

	Ti-6Al-4V	20#
(kgm^−3)	4428	7840
E (GPa)	113.8	206
	0.31	0.3
A (MPa)	1098	258
B (MPa)	1092	329
n	0.93	0.235
C	0.014	0.0323
m	1.1	1.0
d1	−0.09	0.05
d2	0.27	3.44
d3	0.48	−2.12
d4	0.014	0.002
d5	3.87	0.61