[Retracted] Study of Surface Roughness of Cutting Isothermally Hardened Ductile Iron in Tosa Knife Forging Technique Based on Intelligent Calculation

Table 2

Mechanical properties of ADI materials.

Group no.	Isothermal temperature ()	Tensile strength ()	Elongation (%)	Fracture condition	Hardness
ADI1	300	1385	1.80	Normal	45.8HRC
ADI2	350	1390	2.80	Normal	41.5HRC
ADI3	400	1080	1.55	Normal	37.8HRC