Metallurgical Aspects of Laser Surface Processing of PM Cr-V Ledeburitic Steel

Table 1

Results of retained austenite volume fraction measurements.

Depth below the surface (mm)	0.1	0.2	0.3	0.4	0.5	0.6	0.7
Central region	82 ± 2	81 ± 4	67 ± 7	63 ± 4	39 ± 5	16 ± 3	17 ± 3
Periphery	61 ± 8	63 ± 6	57 ± 9	49 ± 4	30 ± 4	18 ± 3	15 ± 3