Plasticity Improvement of Ball-Spun Magnesium Alloy Tube Based on Stress Triaxiality

Table 4

Fitting function coefficient.

−2.84E − 01	−5.49E + 01	−4.49E + 01	−7.78E − 02	3.64E − 01	−1.41E + 01	−3.92E − 01	−4.06E + 00
2.42E + 01	3.07E + 00	6.02E + 01	6.15E + 01	−1.10E + 01	−1.64E + 01	−1.95E + 01	1.52E + 01