Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress

Table 3

Error analysis of fitting results of test piece 1.

Serial no.	(MPa)	(MPa)	(A/m)	(A/m)	(A/m)	(%)	Hcy (A/m)	Hc'y (A/m)	(A/m)	(%)
1	0	0	1618.657	1564	54.657	3.38	1634.424	1630	4.424	2.82
2	0	30	1629.635	1586.473	43.162	2.65	1607.31	1607.491	0.1815	0.12
3	0	60	1638.612	1608.946	29.666	1.81	1590.195	1584.982	5.213	3.32
4	0	90	1653.185	1631.419	21.766	1.32	1563.125	1562.473	0.6515	0.41
5	0	120	1669.758	1653.892	15.866	0.95	1516.054	1539.964	23.91	15.22
6	0	150	1678.825	1676.365	2.46	0.15	1510.454	1517.455	7.0015	4.46
7	0	180	1687.891	1698.838	−10.947	−0.65	1494.853	1494.946	0.093	0.06
8	0	210	1715.399	1721.311	−5.912	−0.34	1491.116	1472.437	18.679	11.89
9	0	240	1764.307	1743.784	20.523	1.16	1477.379	1449.928	27.451	17.48
10	180	0	1497.107	1475.152	21.955	1.47	1694.909	1700.488	5.579	3.10
11	180	30	1495.811	1497.625	−1.814	−0.12	1675.655	1677.979	2.324	1.29
12	180	60	1494.514	1520.098	−25.584	−1.71	1656.401	1655.47	0.931	0.52
13	180	90	1520.807	1542.571	−21.764	−1.43	1639.101	1632.961	6.1395	3.41
14	180	120	1547.1	1565.044	−17.944	−1.16	1621.8	1610.452	11.348	6.30
15	180	150	1609.25	1587.517	21.733	1.35	1589.3	1587.943	1.357	0.75
16	180	180	1671.4	1609.99	61.41	3.67	1556.8	1565.434	8.634	4.79
17	180	210	1671.3025	1632.463	38.8395	2.32	1535.535	1542.925	7.39	4.10
18	180	240	1671.205	1654.936	16.269	0.97	1514.27	1520.416	6.146	3.41