Figure 8
From: In-situ Monitoring on Micro-hardness of Laser Molten Zone on AISI4140 Steel by Spectral Analysis
On-line monitoring results and real hardness of molten zone under different laser parameters (a) 1700 W and 5 mm/s; (b) 1700 W and 10 mm/s; (c) 1100 W and 5 mm/s; (d) 1100 W and 10 mm/s.
