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

Table 2

Average stress triaxial value for different process parameters.

No.	R	Δt	f	TRIAX	No.	R	Δt	f	TRIAX	No.	R	Δt	f	TRIAX
1	2.5	0.2	0.2	−0.7413	13	2.5	0.3	0.1	−0.1733	25	4.5	0.3	0.2	−0.8001
2	3.5	0.2	0.2	−0.9252	14	2.5	0.3	0.15	−0.4531	26	4.5	0.4	0.2	−0.6585
3	4	0.2	0.2	−0.8034	15	2.5	0.3	0.25	−0.4681	27	4.5	0.5	0.2	−0.6274
4	4.5	0.2	0.2	−0.7574	16	2.5	0.3	0.3	−0.2836	28	3	0.1	0.2	−0.6487
5	2.5	0.2	0.3	−0.6020	17	2.5	0.2	0.1	−0.4014	29	3	0.2	0.2	−1.0312
6	3.5	0.2	0.3	−0.7252	18	2.5	0.2	0.15	−0.6340	30	3	0.4	0.2	−0.5260
7	4	0.2	0.3	−0.5834	19	2.5	0.2	0.25	−0.7329	31	3	0.5	0.2	−0.4594
8	4.5	0.2	0.3	−0.5074	20	3	0.2	0.1	−0.5552	32	3	0.1	0.3	−0.5487
9	2.5	0.3	0.2	−0.5699	21	3	0.2	0.15	−0.8883	33	3	0.3	0.3	−0.5886
10	3	0.3	0.2	−0.8416	22	3	0.2	0.25	−0.9686	34	3	0.4	0.3	−0.3063
11	3.5	0.3	0.2	−0.7552	23	3	0.2	0.3	−0.8766	35	3	0.5	0.3	−0.2050
12	4	0.3	0.2	−0.7634	24	4.5	0.1	0.2	−0.4416